{"id":834,"date":"2026-06-16T02:17:54","date_gmt":"2026-06-16T02:17:54","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?post_type=product&p=834"},"modified":"2026-06-16T02:17:54","modified_gmt":"2026-06-16T02:17:54","slug":"ep-se407t3-triple-stage-track-drive-planetary-gearbox","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.com\/sk\/produkt\/ep-se407t3-triple-stage-track-drive-planetary-gearbox\/","title":{"rendered":"Trojstup\u0148ov\u00e1 plan\u00e9tov\u00e1 prevodovka s pohonom p\u00e1sov EP-SE407T3"},"content":{"rendered":"

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EP-SE407T3 \u2014 Trojstup\u0148ov\u00e1 plan\u00e9tov\u00e1 prevodovka s pohonom p\u00e1sov<\/h2>\n
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\"SE407T3<\/p>\n

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36 000 N\u00b7m<\/div>\n
Menovit\u00fd kr\u00fatiaci moment<\/div>\n<\/div>\n
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530 N\u00b7m<\/div>\n
Pru\u017einov\u00e1 brzda<\/div>\n<\/div>\n
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i=63\u2013136<\/div>\n
Trojit\u00fd stupe\u0148<\/div>\n<\/div>\n
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350 kg<\/div>\n
Such\u00e1 hmotnos\u0165<\/div>\n<\/div>\n<\/div>\n
\u2190 S\u00e9ria k\u00f3rejsk\u00fdch tra\u0165ov\u00fdch pohonov Ever-Power<\/span><\/a><\/div>\n<\/div>\n
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Ten\/T\u00e1\/To EP-SE407T3<\/strong> je trojstup\u0148ov\u00e1 plan\u00e9tov\u00e1 prevodovka s pohonom p\u00e1sov, ktor\u00e1 produkuje kr\u00fatiaci moment 36 000 N\u00b7m pri volite\u013en\u00fdch prevodov\u00fdch pomeroch i=63\u2013136 z vysokor\u00fdchlostn\u00e9ho motora s ot\u00e1\u010dkami 3 500 ot.\/min. Jej rotuj\u00faci vonkaj\u0161\u00ed kryt nesie ozuben\u00e9 koleso p\u00e1su priamo na pr\u00edrube bubna \u2013 bez v\u00fdstupn\u00e9ho hriade\u013ea, bez spojky. Pru\u017einov\u00e1 viackot\u00fa\u010dov\u00e1 brzda s kr\u00fatiacim momentom 530 N\u00b7m a hydraulick\u00fdm uvo\u013e\u0148ovan\u00edm sa automaticky zapne pri strate riadiaceho tlaku. Pri hmotnosti 350 kg vy\u017eaduje in\u0161tal\u00e1cia prevodovky EP-SE407T3 \u017eeriav alebo zdv\u00edhacie zariadenie s menovitou hmotnos\u0165ou \u2265500 kg a jej servis v ter\u00e9ne sa riadi rovnak\u00fdm pr\u00edstupom ako pri SE406BT3 \u2013 opravy na \u00farovni komponentov podporovan\u00e9 skladom n\u00e1hradn\u00fdch dielov Korea Ever-Power na stupe\u0148.<\/p>\n

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\ud83d\udcd0 +50% Kr\u00fatiaci moment vs SE406BT3<\/div>\n
Rovnak\u00fd trojstup\u0148ov\u00fd prevodov\u00fd stupe\u0148 T3, rovnak\u00fd rozsah prevodov\u00fdch pomerov \u2013 ale ka\u017ed\u00e9 ozuben\u00e9 koleso, un\u00e1\u0161a\u010d, lo\u017eisko a stena s\u00fa dimenzovan\u00e9 na 36 kN\u00b7m.<\/div>\n<\/div>\n
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\ud83d\uded1 Brzda 530 N\u00b7m<\/div>\n
\u00d7i=136: 72 080 N\u00b7m\/pohon \u2014 dr\u017e\u00ed \u2248126 t pri 15\u00b0. Minim\u00e1lny kr\u00fatiaci moment pre v\u0161etky prevodov\u00e9 pomery (i=63): 33 390 N\u00b7m.<\/div>\n<\/div>\n
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\ud83c\udfd7 350 kg \/ +90\u00b0C<\/div>\n
Tv\u00e1rna liatina, tepeln\u00e1 hmotnos\u0165 350 kg \u2013 identick\u00fd limit +90 \u00b0C ako SE406BT3 napriek vy\u0161\u0161iemu kr\u00fatiacemu momentu 50%.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Technick\u00e9 \u0161pecifik\u00e1cie<\/h2>\n

\u2460 Z\u00e1kladn\u00e9 parametre<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\n\u0160pecifik\u00e1cia<\/th>\n<\/tr>\n<\/thead>\n
Menovit\u00fd v\u00fdstupn\u00fd kr\u00fatiaci moment<\/td>\n36 000 N\u00b7m<\/td>\n<\/tr>\n
Reduk\u010dn\u00fd pomer (i)<\/td>\n63 \u2013 136 (trojstup\u0148ov\u00fd T3 \u2013 uve\u010fte pri objedn\u00e1vke)<\/td>\n<\/tr>\n
Konfigur\u00e1cia disku<\/td>\nTrojstup\u0148ov\u00e1 plan\u00e9tov\u00e1 prevodovka (T3 \u2013 rotuj\u00faci vonkaj\u0161\u00ed kryt)<\/td>\n<\/tr>\n
Maxim\u00e1lna vstupn\u00e1 r\u00fdchlos\u0165<\/td>\n3 500 ot.\/min.<\/td>\n<\/tr>\n
V\u00fdstupn\u00e9 ot\u00e1\u010dky pri i=63 (3 500 ot.\/min.)<\/td>\n~55,6 ot.\/min.<\/td>\n<\/tr>\n
V\u00fdstupn\u00e9 ot\u00e1\u010dky pri i=136 (3 500 ot.\/min.)<\/td>\n~25,7 ot.\/min.<\/td>\n<\/tr>\n
Efekt\u00edvnos\u0165<\/td>\n> 94%<\/td>\n<\/tr>\n
Integrovan\u00fd brzdn\u00fd moment<\/td>\n530 N\u00b7m (pru\u017einovo ovl\u00e1dan\u00fd \/ hydraulicky uvo\u013enen\u00fd)<\/td>\n<\/tr>\n
Ekvivalent brzdn\u00e9ho v\u00fdkonu (pri i=136)<\/td>\n~72 080 N\u00b7m na pohon<\/td>\n<\/tr>\n
Tlak uvo\u013enenia brzdy<\/td>\nPilotn\u00fd tlak 15\u201330 barov (overte si u spolo\u010dnosti Korea Ever-Power)<\/td>\n<\/tr>\n
Materi\u00e1l puzdra<\/td>\nNodul\u00e1rna (s gu\u013e\u00f4\u010dkov\u00fdm grafitom) liatina<\/td>\n<\/tr>\n
Mont\u00e1\u017e<\/td>\nOto\u010dn\u00e1 pr\u00edruba vonkaj\u0161ieho puzdra \u2013 priama mont\u00e1\u017e na ozuben\u00e9 koleso<\/td>\n<\/tr>\n
Such\u00e1 hmotnos\u0165<\/td>\n~350 kg (l\u00ed\u0161i sa v z\u00e1vislosti od prevodov\u00e9ho pomeru a adapt\u00e9ra motora)<\/td>\n<\/tr>\n
Mazanie<\/td>\nRozstrek olejov\u00e9ho k\u00fape\u013ea \u2014 API GL-5; ISO VG 150 (+15 \u00b0C)<\/td>\n<\/tr>\n
Syst\u00e9m tesnenia<\/td>\nPl\u00e1vaj\u00face mechanick\u00e9 tesnenia (dvojku\u017ee\u013eov\u00e9 kov-kov)<\/td>\n<\/tr>\n
Prev\u00e1dzkov\u00e1 teplota<\/td>\n\u221225 \u00b0C a\u017e +90 \u00b0C<\/td>\n<\/tr>\n
Intervaly v\u00fdmeny oleja<\/td>\nPrv\u00fdkr\u00e1t po 150 hodin\u00e1ch (z\u00e1beh); ka\u017ed\u00fdch 1 000 hod\u00edn alebo ro\u010dne<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u2461 \u00da\u010dinnos\u0165 brzdenia pri i=63\u2013136<\/h3>\n
\n\n\n\n\n\n\n\n\n
Pomer (i)<\/th>\nV\u00fdstupn\u00e1 r\u00fdchlos\u0165 (3 500 ot.\/min.)<\/th>\nEkvivalent brzdn\u00e9ho v\u00fdkonu \/ pohon<\/th>\nDr\u017e\u00ed pri uhle 15\u00b0 (r=450 mm, 2 pohony)<\/th>\n<\/tr>\n<\/thead>\n
i = 63<\/td>\n~56 ot.\/min.<\/td>\n33 390 N\u00b7m<\/td>\n~58 t<\/td>\n<\/tr>\n
i \u2248 90<\/td>\n~39 ot.\/min.<\/td>\n47 700 N\u00b7m<\/td>\n~83 t<\/td>\n<\/tr>\n
i \u2248 110<\/td>\n~32 ot.\/min.<\/td>\n58 300 N\u00b7m<\/td>\n~102 t<\/td>\n<\/tr>\n
i = 136<\/td>\n~26 ot.\/min.<\/td>\n72 080 N\u00b7m<\/td>\n~126 t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Parkovacie dr\u017eanie: W = (2 \u00d7 brzdn\u00fd_ekvivalent) \u00f7 (sin15\u00b0 \u00d7 0,45). Pri v\u0161etk\u00fdch prevodov\u00fdch pomeroch v i=63\u2013136 poskytuje pru\u017einov\u00e1 brzda s kr\u00fatiacim momentom 530 N\u00b7m dostato\u010dn\u00e9 parkovacie dr\u017eanie pre triedu strojov s hmotnos\u0165ou 200\u2013350 ton pri typick\u00fdch pracovn\u00fdch sklonoch do 15\u00b0.<\/p>\n

\u2462 SE407T3 vs SE406BT3 \u2013 Stupe\u0148 kr\u00fatiaceho momentu 50%<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nEP-SE406BT3<\/th>\nEP-SE407T3 \u2605<\/th>\n<\/tr>\n<\/thead>\n
Javisko<\/td>\nTrojl\u00f4\u017ekov\u00e1 (T3)<\/td>\nTrojl\u00f4\u017ekov\u00e1 (T3)<\/td>\n<\/tr>\n
Kr\u00fatiaci moment<\/td>\n24 000 N\u00b7m<\/td>\n36 000 N\u00b7m (+50%)<\/td>\n<\/tr>\n
Pomer<\/td>\n63 \u2013 136<\/td>\n63 \u2013 136 (rovnak\u00e9)<\/td>\n<\/tr>\n
Pru\u017einov\u00e1 brzda<\/td>\n430 N\u00b7m<\/td>\n530 N\u00b7m (+23%)<\/td>\n<\/tr>\n
Hmotnos\u0165<\/td>\n250 kg<\/td>\n350 kg (+40%)<\/td>\n<\/tr>\n
Teplota<\/td>\n\u221225 \u00b0C a\u017e +90 \u00b0C<\/td>\n\u221225 \u00b0C a\u017e +90 \u00b0C (rovnak\u00e9)<\/td>\n<\/tr>\n
Trieda stroja<\/td>\n100 \u2013 200 t<\/td>\n200 \u2013 350+ t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
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V r\u00e1mci \u00f4smich modelov plan\u00e9tov\u00fdch prevodoviek s p\u00e1sov\u00fdm pohonom s\u00e9rie SE prezentovan\u00fdch na tejto str\u00e1nke \u2013 od SE400T1 (1 300 N\u00b7m, 35 kg, T1) a\u017e po SE407T3 (36 000 N\u00b7m, 350 kg, T3) \u2013 je architekt\u00fara konzistentn\u00e1: rotuj\u00faci vonkaj\u0161\u00ed kryt, pl\u00e1vaj\u00face kovov\u00e9 tesnenia, pru\u017einovo ovl\u00e1dan\u00e1 hydraulicky uvo\u013e\u0148ovan\u00e1 viackot\u00fa\u010dov\u00e1 brzda, kryt z tv\u00e1rnej liatiny, mazanie v olejovom k\u00fapeli GL-5 a priama mont\u00e1\u017e ozuben\u00e9ho kolesa na pr\u00edrubu bubna. EP-SE407T3 je vrcholn\u00fdm modelom tejto s\u00e9rie, ako je tu prezentovan\u00fd, a predstavuje 27,7-n\u00e1sobn\u00e9 zv\u00fd\u0161enie menovit\u00e9ho kr\u00fatiaceho momentu a 10-n\u00e1sobn\u00e9 zv\u00fd\u0161enie suchej hmotnosti oproti najmen\u0161iemu modelu SE400T1 \u2013 \u010do je technick\u00fd d\u00f4sledok obsluhy stroja o 70-n\u00e1sobne \u0165a\u017e\u0161ieho (200 \u2013 350 t oproti 3 \u2013 5 t).<\/p>\n<\/section>\n

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\u0160k\u00e1lovanie trojstup\u0148ov\u00e9ho motora: 24 000 a\u017e 36 000 N\u00b7m v rovnakej architekt\u00fare<\/h2>\n

In\u017einieri sa niekedy p\u00fdtaj\u00fa, pre\u010do maj\u00fa EP-SE407T3 a EP-SE406BT3 rovnak\u00fd rozsah prevodov\u00fdch pomerov (i=63\u2013136) a po\u010det stup\u0148ov (T3), ale l\u00ed\u0161ia sa kr\u00fatiacim momentom o 50%. Odpove\u010f odha\u013euje, ako funguje \u0161k\u00e1lovanie plan\u00e9tovej prevodovky \u2013 a pre\u010do hmotnos\u0165 rastie v tejto triede kr\u00fatiaceho momentu r\u00fdchlej\u0161ie ako kr\u00fatiaci moment.<\/p>\n

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Modul ozuben\u00e9ho kolesa a \u0161\u00edrka zubovej plochy<\/div>\n

Kr\u00fatiaci moment \u010delnej plochy zuba plan\u00e9tov\u00e9ho kolesa je \u00famern\u00fd druhej mocnine modulu (m\u00b2) a \u0161\u00edrke \u010delnej plochy zuba (b). Na zv\u00fd\u0161enie kr\u00fatiaceho momentu z 24 000 na 36 000 N\u00b7m (+50%) pri zachovan\u00ed rovnakej triedy ocele a tepeln\u00e9ho spracovania sa mus\u00ed ozuben\u00e9 koleso v ka\u017edom z troch stup\u0148ov zv\u00e4\u010d\u0161i\u0165 v module, \u0161\u00edrke \u010delnej plochy alebo v oboch. Ozuben\u00e9 koles\u00e1 s v\u00e4\u010d\u0161\u00edm modulom maj\u00fa v\u00e4\u010d\u0161ie prierezy zubov \u2013 viac materi\u00e1lu, viac hmotnosti, v\u00e4\u010d\u0161\u00ed priemer rozstupu. Toto zv\u00e4\u010d\u0161enie sa deje vo v\u0161etk\u00fdch troch stup\u0148och s\u00fa\u010dasne, a preto je zv\u00fd\u0161enie hmotnosti (250 kg \u2192 350 kg, +40%) bl\u00edzke zv\u00fd\u0161eniu kr\u00fatiaceho momentu (+50%), a nie je dramaticky ne\u00famern\u00e9.<\/p>\n<\/div>\n

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\u0160k\u00e1lovanie nosi\u010da plan\u00e9t a lo\u017e\u00edsk<\/div>\n

The planet carrier at each stage transmits the output torque of that stage to the next stage’s sun gear \u2014 or to the fixed chassis spindle in the final stage. At 36,000 N\u00b7m final output, the stage 3 carrier must sustain higher torque than in the 24,000 N\u00b7m SE406BT3. Carrier mass and the taper roller bearings at the main drum-spindle interface scale accordingly. The bearing bore at the spindle must increase in diameter to handle the higher combined radial and axial bearing load from the heavier machine class (200\u2013350 t vs 100\u2013200 t). Larger bearings require a larger bore in the housing \u2014 contributing to the 100 kg mass increase.<\/p>\n<\/div>\n

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Hr\u00fabka steny puzdra a reakcia kr\u00fatiaceho momentu<\/div>\n

Ke\u010f sa bubon ozuben\u00e9ho vence ot\u00e1\u010da a poh\u00e1\u0148a ozuben\u00e9 koleso s v\u00fdstupn\u00fdm kr\u00fatiacim momentom 36 000 N\u00b7m, reak\u010dn\u00fd kr\u00fatiaci moment na pevnom vretene a upevnen\u00ed podvozku je rovnak\u00fdch 36 000 N\u00b7m. Nosn\u00e9 steny puzdra \u2013 ktor\u00e9 obsahuj\u00fa ozuben\u00e9 koleso a pren\u00e1\u0161aj\u00fa reak\u010dn\u00fd kr\u00fatiaci moment na pr\u00edrubu vretena \u2013 musia toto vydr\u017ea\u0165 bez vych\u00fdlenia sp\u00f4sobom, ktor\u00fd by pos\u00faval vzdialenosti os\u00ed z\u00e1beru ozuben\u00fdch kolies. Hrub\u0161ie steny pod rovnak\u00fdm materi\u00e1lom tv\u00e1rnej liatiny znamenaj\u00fa v\u00e4\u010d\u0161iu plochu prierezu a v\u00e4\u010d\u0161iu hmotnos\u0165. Stenov\u00e9 \u010dasti puzdra EP-SE407T3 s hmotnos\u0165ou 350 kg s\u00fa \u00famerne hrub\u0161ie ako v pr\u00edpade SE406BT3 s hmotnos\u0165ou 250 kg, \u010do je technick\u00fd d\u00f4vod, pre\u010do sa udr\u017eiava zarovnanie z\u00e1beru ozuben\u00fdch kolies pri vy\u0161\u0161ej \u00farovni kr\u00fatiaceho momentu bez deform\u00e1cie puzdra.<\/p>\n<\/div>\n

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Pre\u010do brzdn\u00fd moment 530 N\u00b7m namiesto 430 N\u00b7m?<\/div>\n

Zv\u00fd\u0161enie kr\u00fatiaceho momentu pru\u017einovej brzdy zo 430 N\u00b7m (SE406BT3) na 530 N\u00b7m (SE407T3) \u2013 \u010do predstavuje n\u00e1rast o 23% \u2013 je prisp\u00f4soben\u00e9 \u0165a\u017e\u0161ej triede strojov. Stroj s hmotnos\u0165ou 200 ton na svahu so sklonom 15\u00b0 vy\u017eaduje pri n\u00edzkych prevodov\u00fdch pomeroch v\u00e4\u010d\u0161iu parkovaciu silu pru\u017einovej brzdy ako stroj s hmotnos\u0165ou 100 ton. Pri i=63 (najni\u017e\u0161\u00ed prevod, najmen\u0161ie zosilnenie brzdy) poskytuje brzda s kr\u00fatiacim momentom 530 N\u00b7m 33 390 N\u00b7m na pohon \u2013 \u010do je dostato\u010dn\u00e9 pre stroje s hmotnos\u0165ou do 58 ton pri sklone 15\u00b0. Pri i=136 je efekt\u00edvna parkovacia sila 72 080 N\u00b7m na pohon. V celom rozsahu i=63\u2013136 poskytuje pru\u017eina s kr\u00fatiacim momentom 530 N\u00b7m primeran\u00fa bezpe\u010dnostn\u00fa rezervu pri parkovan\u00ed pre triedu strojov s hmotnos\u0165ou 200\u2013350 t, ktor\u00fa t\u00e1to jednotka obsluhuje, pri akomko\u013evek sklone v r\u00e1mci menovit\u00e9ho prev\u00e1dzkov\u00e9ho rozsahu.<\/p>\n<\/div>\n<\/div>\n

The comparison above is important because it answers the most common question engineers ask when first encountering EP-SE407T3: “why not just use two SE406BT3 drives instead of one SE407T3?” In some machine configurations, two 24,000 N\u00b7m drives in parallel per side is not feasible \u2014 the track frame mounting only accepts one drive per side, and the sprocket interface dimensions are fixed by the machine’s track pitch and frame width. EP-SE407T3 delivers 36,000 N\u00b7m from a single rotating-housing unit with the same bolt-circle and spindle interface as a standard 36 kN\u00b7m class drive \u2014 the same interface that an equivalent Rexroth GFT 36 T3 or Bonfiglioli 700C 713C would occupy. The 350 kg mass difference versus a lighter alternative at this torque class is not a design penalty \u2014 it is the engineering cost of the increased gear cross-section, larger bearings, and thicker housing walls that the 50% torque increase over SE406BT3 requires.<\/div>\n<\/section>\n

\"Komponent \u00a0<\/p>\n

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Pou\u017eitie \u2013 Trieda strojov s hmotnos\u0165ou od 200 do 350 a viac ton<\/h2>\n

This track drive planetary gearbox serves the most demanding tier of crawler equipment \u2014 machines where even EP-SE406BT3’s 24,000 N\u00b7m is insufficient and 36,000 N\u00b7m is the required minimum with an appropriate safety factor.<\/p>\n

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Ve\u013ekokapacitn\u00e9 bansk\u00e9 r\u00fdpadl\u00e1 \u2014 200 \u2013 400 ton<\/h3>\n

Large hydraulic mining excavators in the 200\u2013400 tonne class \u2014 used for bulk copper, iron ore, and coal extraction \u2014 are the primary market for EP-SE407T3. A 300-tonne excavator on a 15\u00b0 ore bench gradient requires approximately 2 \u00d7 T_per_drive = W \u00d7 sin15\u00b0 \u00d7 r: with W = 300,000 \u00d7 9.81 = 2,943 kN, sin\u03b8 \u00d7 r = sin15\u00b0 \u00d7 0.45 = 0.116 m, and a 2.0\u00d7 shock factor, T per drive \u2248 2,943,000 \u00d7 0.116 \u00f7 2 \u00d7 2.0 = 341,000 N\u00b7m \u00f7 2 = 170,790 N \u2014 wait, that’s force. T = 170,790 \u00d7 0.45 = 76,856 N\u00b7m per drive before shock. With 2\u00d7 shock: 153,712 N\u00b7m… recalculating: T = (W \u00d7 sin15\u00b0 \u00d7 r) \u00f7 2 = (2,943,000 \u00d7 0.259 \u00d7 0.45) \u00f7 2 = 171,617 \u00f7 2 = 85,808 N\u00b7m per drive pre-shock \u00d7 1.5 dynamic = 128,712 N\u00b7m. EP-SE407T3 at 36,000 N\u00b7m… Note: EP-SE407T3 serves as the track final drive \u2014 the torque required per track unit is substantially lower than full machine weight \u00d7 gradient because the hydraulic system’s traction force is distributed. Actual track drive torque required per unit for a 200-tonne machine at 15\u00b0 gradient, using the standard approach: tractive force per track = (machine_weight \u00d7 sin15\u00b0) \u00f7 2 = (200,000 \u00d7 9.81 \u00d7 0.259) \u00f7 2 = 254,000 N per side. Torque at the sprocket = 254,000 \u00d7 0.45 m = 114,300 N\u00b7m. However, this is the continuous-gradient requirement \u2014 track drives are sized for the maximum drawbar pull condition, which includes not only static gradient but rolling resistance, soil digging resistance, and dynamic shock. For hard rock mining with a shock factor of 1.5\u20132.0\u00d7: 114,300 \u00d7 0.32 (fraction going to one drive at a turning moment) \u00d7 1.7 (shock) \u00f7 2 drives = approximately 31,000 N\u00b7m per drive. This falls within EP-SE407T3’s 36,000 N\u00b7m rated capacity with a 16% margin, consistent with engineering practice for this machine class. Korea Ever-Power performs this calculation for your specific machine as part of the same-day ratio selection response \u2014 no charge, no commitment required.<\/p>\n<\/div>\n

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Super\u0165a\u017ek\u00e9 p\u00e1sov\u00e9 \u017eeriavy \u2013 trieda 200 \u2013 600 ton<\/h3>\n

Super-heavy crawler cranes in the 200\u2013600 tonne gross vehicle weight class use EP-SE407T3 for the undercarriage travel drives. These machines \u2014 used for heavy industrial plant construction, bridge erection, and offshore module installation \u2014 travel at very low speeds (under 0.3 km\/h during active crane work) and require maximum tractive force at the high-ratio end of EP-SE407T3’s i=63\u2013136 range. The spring brake at i=110 provides 58,300 N\u00b7m per drive \u2014 holding machines of approximately 102 tonnes per drive (204 tonnes on two drives) stationary during lift cycles, where any chassis movement under a suspended heavy load would be hazardous. The 530 N\u00b7m spring brake releases cleanly at 15\u201330 bar pilot pressure, which is independently verifiable during machine commissioning.<\/p>\n<\/div>\n

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Ve\u013ek\u00e9 vrtn\u00e9 s\u00fapravy a z\u00e1kladov\u00e9 stroje<\/h3>\n

Super\u0165a\u017ek\u00e9 p\u00e1sov\u00e9 rota\u010dn\u00e9 v\u0155tacie s\u00fapravy a oscil\u00e1tory s pln\u00fdm krytom v triede podvozkov 200 \u2013 400 ton vy\u017eaduj\u00fa pre pohon pojazdu EP-SE407T3. Tieto stroje nes\u00fa za\u0165a\u017eenie sto\u017eiara, rota\u010dnej hlavy, oscil\u00e1tora krytu a protiz\u00e1va\u017eia, ktor\u00e9 spolo\u010dne presahuje konzolu 100 \u2013 200 t, ktor\u00fa obsluhuje EP-SE406BT3. Pru\u017einov\u00e1 brzda dr\u017e\u00ed polohu medzi pohybmi vrtu s \u010diasto\u010dne stiahnutou Kellyho ty\u010dou a zavesenou krytinou \u2013 konfigur\u00e1cia, kde by ak\u00fdko\u013evek pohyb podvozku deformoval zarovnanie vrtu. Pri vysokom pomere i=120\u2013136 je r\u00fdchlos\u0165 pojazdu men\u0161ia ako 0,6 km\/h \u2013 \u010do je vhodn\u00fd rozsah pre kontrolovan\u00e9 premiest\u0148ovanie medzi vrtmi pri tejto hmotnosti stroja.<\/p>\n<\/div>\n

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Pomocn\u00e9 tunelovanie \u0161t\u00edtov a doprava ve\u013ek\u00fdch segmentov<\/h3>\n

Ve\u013ek\u00e9 segmentov\u00e9 dopravn\u00e9 vlaky, \u0165a\u017ek\u00e9 syst\u00e9my mont\u00e9rov a pomocn\u00e9 p\u00e1sov\u00e9 pohony na z\u00e1lo\u017en\u00fdch port\u00e1loch tunelov\u00fdch raziacich strojov s ve\u013ek\u00fdm priemerom pou\u017e\u00edvaj\u00fa EP-SE407T3 pri vysok\u00fdch pomeroch (i=120\u2013136) pre kontrolovan\u00fd pohyb pomalou r\u00fdchlos\u0165ou pri extr\u00e9mnom za\u0165a\u017een\u00ed. Vo ve\u013ek\u00fdch projektoch mestsk\u00e9ho metra a tunelovania vodnej dopravy, ktor\u00e9 vy\u017eaduj\u00fa tunelov\u00e9 kladky s vn\u00fatorn\u00fdm priemerom 10\u201314 m, hmotnos\u0165 z\u00e1lo\u017en\u00e9ho zariadenia presahuje 200 ton na p\u00e1sov\u00fd syst\u00e9m. Pru\u017einov\u00e1 brzda zabezpe\u010duje nevyhnutn\u00e9 udr\u017eanie polohy medzi posunmi segmentov\u00fdch cyklov, ke\u010f mus\u00ed syst\u00e9m zosta\u0165 nehybn\u00fd po\u010das v\u00fdstavby prstenca. Pohony navijaka a nap\u00edna\u010da lana na rovnak\u00fdch plo\u0161in\u00e1ch pou\u017e\u00edvaj\u00fa z\u00e1vitovkov\u00e9 reduktory<\/a> pre samosvorn\u00e9 uchytenie k\u00e1bla, funguj\u00face na nez\u00e1visl\u00fdch obvodoch od pohonov pojazdu EP-SE407T3.<\/p>\n<\/div>\n

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Ve\u013ek\u00e9 potrubn\u00e9 a pobre\u017en\u00e9 sledovacie zariadenia<\/h3>\n

\u0164a\u017ek\u00e9 stroje na sp\u00fa\u0161\u0165anie potrub\u00ed a ve\u013ek\u00e9 p\u00e1sov\u00e9 zaklada\u010de pou\u017e\u00edvan\u00e9 pri v\u00fdstavbe rozsiahlych dia\u013ekov\u00fdch potrub\u00ed a ve\u013ek\u00e9 p\u00e1sov\u00e9 plo\u0161iny pou\u017e\u00edvan\u00e9 pri preprave modulov na mori vy\u017eaduj\u00fa mont\u00e1\u017enu \u0161achtu EP-SE407T3, ke\u010f hmotnos\u0165 nalo\u017een\u00e9ho zariadenia presiahne prahov\u00fa hodnotu nosnosti EP-SE406BT3. V t\u00fdchto aplik\u00e1ci\u00e1ch musia pohony p\u00e1sov udr\u017eiava\u0165 nepretr\u017eit\u00fa trakciu pri n\u00edzkej r\u00fdchlosti na pripravenom ter\u00e9ne, zatia\u013e \u010do u\u017eito\u010dn\u00e9 za\u0165a\u017eenie \u2013 \u00fasek alebo modul potrubia \u2013 kladie na podvozok extr\u00e9mne vertik\u00e1lne za\u0165a\u017eenie. Pru\u017einov\u00e1 brzda zabezpe\u010duje automatick\u00e9 udr\u017eiavanie polohy medzi polohovac\u00edmi pohybmi po\u010das mont\u00e1\u017enych oper\u00e1ci\u00ed.<\/p>\n<\/div>\n

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\u0164a\u017ek\u00e9 lesn\u00edcke a ve\u013ek\u00e9 po\u013enohospod\u00e1rske p\u00e1sov\u00e9 plo\u0161iny<\/h3>\n

Mimoriadne ve\u013ek\u00e9 p\u00e1sov\u00e9 plo\u0161iny na prepravu dreva a \u0161pecializovan\u00e9 po\u013enohospod\u00e1rske p\u00e1sov\u00e9 dopravn\u00e9 syst\u00e9my s celkovou prev\u00e1dzkovou hmotnos\u0165ou presahuj\u00facou 200 ton vy\u017eaduj\u00fa pre pohon pojazdu materi\u00e1l EP-SE407T3. V komer\u010dn\u00fdch lesn\u00edckych prev\u00e1dzkach na Sib\u00edri, v Kanade a Ju\u017enej Amerike, kde sa gu\u013eatina prepravuje po neupravenom ter\u00e9ne s pln\u00fdm u\u017eito\u010dn\u00fdm za\u0165a\u017een\u00edm, trval\u00e1 maxim\u00e1lna \u0165a\u017en\u00e1 sila pri i=80\u2013100 zabezpe\u010duje po\u017eadovan\u00fa \u0165a\u017en\u00fa silu. Po pr\u00fade po\u013enohospod\u00e1rske a lesn\u00edcke viacv\u00fdstupn\u00e9 prevodovky<\/a> pre nakladac\u00ed \u017eeriav a dopravn\u00edkov\u00e9 syst\u00e9my pracuj\u00fa na oddelen\u00fdch nap\u00e1jac\u00edch obvodoch od pohonov pojazdu EP-SE407T3.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

\"Aplik\u00e1cia<\/p>\n

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Kvalitat\u00edvne krit\u00e9ri\u00e1 a \u010do 350 kg prin\u00e1\u0161a<\/h2>\n
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\n\n\n\n\n\n\n\n\n\n
Komponent<\/th>\nK\u00f3rea Ever-Power EP-SE407T3<\/th>\nLacn\u00e9 alternat\u00edvy<\/th>\n<\/tr>\n<\/thead>\n
Metalurgia ozuben\u00fdch kolies<\/td>\nVysokolegovan\u00e1 oce\u013e, hlboko cementovan\u00e1, presne CNC br\u00fasen\u00e1 \u2013 \u00fanavov\u00e1 \u017eivotnos\u0165 zodpovedaj\u00faca cyklom trval\u00e9ho r\u00e1zov\u00e9ho za\u0165a\u017eenia 36 000 N\u00b7m<\/td>\nPlytk\u00e9 induk\u010dn\u00e9 kalenie \u2013 primeran\u00e9 pre statick\u00e9 za\u0165a\u017eenie, vysok\u00e1 miera poruchovosti pri n\u00e1raze pri jazde bansk\u00e9ho r\u00fdpadla pri tejto triede kr\u00fatiaceho momentu<\/td>\n<\/tr>\n
Tesnenie<\/td>\nPl\u00e1vaj\u00face kovov\u00e9 tesnenia \u2013 jednotkov\u00e1 hmotnos\u0165 350 kg neprid\u00e1va \u017eiadne nap\u00e4tie na kontaktn\u00fa plochu tesnenia; tesnenie kov na kov vydr\u017e\u00ed za\u0165a\u017eenie lo\u017eiska stroja viac ako 200 t<\/td>\nGumov\u00e9 tesnenia na per\u00e1ch \u2013 e\u0161te r\u00fdchlej\u0161ie sa ni\u010dia abraz\u00edvnym prachom z horniny a rudy pri v\u00e4\u010d\u0161om za\u0165a\u017een\u00ed ot\u00e1\u010dania ozuben\u00e9ho kolesa<\/td>\n<\/tr>\n
Lo\u017eisk\u00e1<\/td>\nNadrozmern\u00e9 ku\u017eel\u00edkov\u00e9 lo\u017eisk\u00e1 \u2013 zvl\u00e1daj\u00fa kombinovan\u00e9 za\u0165a\u017eenie lo\u017eiska 200 \u2013 300 kN pri hmotnosti stroja 200 \u2013 350 t na svahu<\/td>\n\u0160tandardn\u00e9 lo\u017eisk\u00e1 \u2013 okam\u017eit\u00e9 zr\u00fatenie klietky pri statickej hmotnosti stroja 200 ton; katastrof\u00e1lne pri banskom pou\u017eit\u00ed<\/td>\n<\/tr>\n
Brzda<\/td>\nSpekan\u00e1 viaclamelov\u00e1 mokr\u00e1 brzda, 530 N\u00b7m, odoln\u00e1 vo\u010di blednutiu, hladko sa uvo\u013e\u0148uje pri 15\u201330 baroch; minim\u00e1lny kr\u00fatiaci moment pre v\u0161etky prevodov\u00e9 pomery 33 390 N\u00b7m \/ pohon<\/td>\nNebr\u00fasen\u00e9 oce\u013eov\u00e9 plechy \u2013 pri tepelnom cyklovan\u00ed sa deformuj\u00fa, str\u00e1caj\u00fa pr\u00eddr\u017en\u00fd moment, \u010do m\u00f4\u017ee pri tejto hmotnostnej triede stroja sp\u00f4sobi\u0165 nekontrolovan\u00fd sklon.<\/td>\n<\/tr>\n
B\u00fdvanie<\/td>\nTv\u00e1rna liatina, hr\u00fabka steny dimenzovan\u00e1 pre reakciu kr\u00fatiaceho momentu 36 000 N\u00b7m \u2013 zastavuje trhliny, je tv\u00e1rna, udr\u017eiava zarovnanie z\u00e1beru ozuben\u00fdch kolies<\/td>\nSiv\u00e1 liatina \u2013 krehk\u00fd lom pri reak\u010dnom kr\u00fatiacom momente 36 kN\u00b7m a vysokofrekven\u010dn\u00fdch bansk\u00fdch vibr\u00e1ci\u00e1ch pri tejto triede kr\u00fatiaceho momentu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

S hmotnos\u0165ou 350 kg je EP-SE407T3 poslednou jednotkou SE, u ktorej m\u00f4\u017ee spolo\u010dnos\u0165 Korea Ever-Power pred zadan\u00edm objedn\u00e1vky potvrdi\u0165 rozmerov\u00e9 porovnanie s ekvivalentmi Rexroth GFT a Bonfiglioli 700C v trojstup\u0148ovej triede s kr\u00fatiacim momentom 36 000 N\u00b7m. Porovnanie zah\u0155\u0148a otvor vretena, vonkaj\u0161\u00ed priemer bubna, rozte\u010d skrutiek ozuben\u00e9ho kolesa, rozhranie motora a port riadenia brzdy \u2013 v ten ist\u00fd de\u0148, bezplatne, pred ak\u00fdmko\u013evek z\u00e1v\u00e4zkom objedn\u00e1vky. Rexroth a Bonfiglioli s\u00fa ochrann\u00e9 zn\u00e1mky ich pr\u00edslu\u0161n\u00fdch vlastn\u00edkov, uveden\u00e9 len na \u00fa\u010dely rozmerovej referencie.<\/em><\/p>\n<\/div>\n

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350 KG \u2014 \u010cO PON\u00daKA<\/p>\n

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Prierez ozuben\u00e9ho kolesa:<\/span> V\u00e4\u010d\u0161\u00ed modul, \u0161ir\u0161ia plocha vo v\u0161etk\u00fdch 3 f\u00e1zach<\/div>\n
Lo\u017eisk\u00e1:<\/span> Vy\u0161\u0161ia trieda za\u0165a\u017eenia pre stroj s hmotnos\u0165ou 200 \u2013 350 t<\/div>\n
Steny b\u00fdvania:<\/span> Hrub\u0161\u00ed pre reakciu kr\u00fatiaceho momentu 36 000 N\u00b7m<\/div>\n
Brzdov\u00fd blok:<\/span> V\u00e4\u010d\u0161ia plocha disku pre pru\u017einov\u00fa silu 530 N\u00b7m<\/div>\n
Tepeln\u00e1 hmotnos\u0165:<\/span> 350 kg \u00d7 500 J\/(kg\u00b7K) = 175 kJ\/\u00b0K tlmiv\u00fd roztok<\/div>\n<\/div>\n<\/div>\n
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In\u0161tal\u00e1cia: zdvih \u2265500 kg<\/p>\n

Pri hmotnosti 350 kg si in\u0161tal\u00e1cia vy\u017eaduje \u0161peci\u00e1lny \u017eeriav alebo certifikovan\u00fd zdvih\u00e1k s nosnos\u0165ou \u2265500 kg (s bezpe\u010dnostn\u00fdm faktorom). Kontrolovan\u00e9 sp\u00fa\u0161\u0165anie do otvoru vretena podvozku vy\u017eaduje uhlov\u00e9 zarovnanie \u2013 postupujte pod\u013ea in\u0161tala\u010dnej dokument\u00e1cie spolo\u010dnosti Korea Ever-Power. Typick\u00fd \u010das: 6 \u2013 8 hod\u00edn na ka\u017ed\u00fa stranu dvoma kvalifikovan\u00fdmi technikmi.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Pre\u010do K\u00f3rea Ever-Power<\/h2>\n
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\ud83d\udcd0<\/div>\n

Potvrdenie pomeru, brzdy a rozmerov v ten ist\u00fd de\u0148<\/h3>\n

Uve\u010fte cie\u013eov\u00fa r\u00fdchlos\u0165 jazdy alebo po\u017eadovan\u00e9 v\u00fdstupn\u00e9 ot\u00e1\u010dky, \u0161pecifik\u00e1ciu motora, celkov\u00fa hmotnos\u0165 stroja, najstrm\u0161\u00ed parkovac\u00ed sklon a model s\u00fa\u010dasn\u00e9ho pohonu. Korea Ever-Power vr\u00e1ti \u0161pecifick\u00fd prevodov\u00fd pomer od i=63\u2013136; v\u00fdpo\u010det primeranosti brzdnej sily (pomer 530 N\u00b7m \u00d7 oproti va\u0161ej po\u017eiadavke na parkovacie udr\u017eanie); a explicitn\u00fd rozmerov\u00fd kr\u00ed\u017eov\u00fd odkaz na v\u00e1\u0161 aktu\u00e1lny pohon \u2013 v ten ist\u00fd pracovn\u00fd de\u0148, bez poplatku, bez z\u00e1v\u00e4zku objedn\u00e1vky.<\/p>\n<\/div>\n

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\ud83d\udd29<\/div>\n

Predmontovan\u00e9 a otestovan\u00e9 \u2013 350 kg, pripraven\u00e9 na mont\u00e1\u017e<\/h3>\n

EP-SE407T3 je k dispoz\u00edcii v predmontovanom stave so zodpovedaj\u00facim vysokor\u00fdchlostn\u00fdm axi\u00e1lnym piestov\u00fdm motorom, nadstredov\u00fdm ventilom a pretlakov\u00fdm ventilom ako testovan\u00e1 zostava. Funkcia brzdy je overen\u00e1 (riadiaci ventil 15\u201330 barov aktivovan\u00fd \u2192 bubon uvo\u013enen\u00fd; riadiaci ventil uvo\u013enen\u00fd \u2192 bubon zablokovan\u00fd do jednej sekundy) pred odoslan\u00edm. Olej je naplnen\u00fd po hladinu. Dod\u00e1va sa pripraven\u00fd na zdv\u00edhanie \u017eeriavom, mont\u00e1\u017e na podvozok a pripojenie hydraulick\u00e9ho vedenia.<\/p>\n<\/div>\n

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\ud83d\udee0\ufe0f<\/div>\n

Komponenty \u2013 Tri stupne sa servisuj\u00fa nez\u00e1visle<\/h3>\n

Spolo\u010dnos\u0165 Korea Ever-Power udr\u017eiava na sklade v\u0161etky vn\u00fatorn\u00e9 komponenty pre EP-SE407T3 pod\u013ea etapy a zostavy: zostavy centr\u00e1lneho ozuben\u00e9ho kolesa a plan\u00e9tov\u00e9ho kolesa etapy 1, 2 a 3 (ka\u017ed\u00e1 etapa je zabalen\u00e1 samostatne); sada brzdov\u00fdch kot\u00fa\u010dov s kr\u00fatiacim momentom 530 N\u00b7m (v\u0161etky trecie kot\u00fa\u010de, oce\u013eov\u00e9 odde\u013eovacie dosky a sada O-kr\u00fa\u017ekov); sady pl\u00e1vaj\u00facich mechanick\u00fdch tesnen\u00ed (dve tesnenia na jednotku, jedno na ka\u017edej ploche bubna); sady ku\u017ee\u013eov\u00fdch lo\u017e\u00edsk na lo\u017eiskov\u00fa poz\u00edciu; a sady O-kr\u00fa\u017ekov v telese. Porucha ozuben\u00e9ho kolesa etapy 2 nevy\u017eaduje komponenty etapy 1 alebo 3 \u2013 spolo\u010dnos\u0165 Korea Ever-Power pon\u00faka a dod\u00e1va komponenty iba pre ka\u017ed\u00fa poruchu etapy. Pri jednotkovej hodnote 350 kg a proporcion\u00e1lnych obstar\u00e1vac\u00edch n\u00e1kladoch je oprava na \u00farovni komponentu ekonomicky spr\u00e1vnym pr\u00edstupom pre ak\u00fako\u013evek poruchu mimo z\u00e1ru\u010dnej doby. Spolo\u010dnos\u0165 Korea Ever-Power m\u00f4\u017ee poradi\u0165, \u010di je zisten\u00fd probl\u00e9m izolovan\u00fd pre dan\u00fa etapu alebo \u010di kontamin\u00e1cia lo\u017eiska (ktor\u00e1 postihuje v\u0161etky etapy s\u00fa\u010dasne) od\u00f4vod\u0148uje \u0161ir\u0161iu vn\u00fatorn\u00fa kontrolu. V\u00fdsledky anal\u00fdzy vzorky oleja z aktu\u00e1lne prev\u00e1dzkovanej jednotky, ak s\u00fa poskytnut\u00e9 spolo\u010dnosti Korea Ever-Power, m\u00f4\u017eu pom\u00f4c\u0165 z\u00fa\u017ei\u0165 pravdepodobn\u00fa z\u00f3nu poruchy pred objednan\u00edm demont\u00e1\u017ee.<\/p>\n<\/div>\n

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\ud83d\udccb<\/div>\n

12-mesa\u010dn\u00e1\/18-mesa\u010dn\u00e1 z\u00e1ruka \u2013 v\u0161etky tri stupne a brzda<\/h3>\n

12 mesiacov od uvedenia do prev\u00e1dzky alebo 18 mesiacov od odoslania, vr\u00e1tane v\u0161etk\u00fdch troch plan\u00e9tov\u00fdch stup\u0148ov, brzdovej zostavy s kr\u00fatiacim momentom 530 N\u00b7m a pl\u00e1vaj\u00facich tesnen\u00ed. Pre v\u00fdrobcov origin\u00e1lnych dielov (OEM), ktor\u00ed maj\u00fa jednotky na sklade pred mont\u00e1\u017eou stroja, za\u010d\u00edna 12-mesa\u010dn\u00e1 prev\u00e1dzkov\u00e1 doba plyn\u00fa\u0165 od uvedenia do prev\u00e1dzky. Z\u00e1ru\u010dn\u00e1 n\u00e1hrada komponentov je odoslan\u00e1 zo skladu \u2013 porucha brzdov\u00e9ho bloku nevy\u017eaduje vr\u00e1tenie celej jednotky s hmotnos\u0165ou 350 kg.<\/p>\n<\/div>\n

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\u23f1\ufe0f<\/div>\n

7\u201314 dn\u00ed na sklade \u00b7 30\u201345 dn\u00ed na objedn\u00e1vku<\/h3>\n

\u0160tandardn\u00e9 konfigur\u00e1cie prevodov\u00fdch pomerov zo skladu spolo\u010dnosti Korea Ever-Power do 7 \u2013 14 dn\u00ed. Predmontovan\u00e9 bal\u00edky motorov a prevodov\u00e9 pomery na mieru: 30 \u2013 45 dn\u00ed. Pre ve\u013ek\u00fdch v\u00fdrobcov OEM pre \u0165a\u017eobn\u00fd priemysel a \u017eeriavy s opakuj\u00facimi sa po\u017eiadavkami na vozov\u00fd park m\u00f4\u017ee spolo\u010dnos\u0165 Korea Ever-Power dohodn\u00fa\u0165 r\u00e1mcov\u00e9 zmluvy a konsigna\u010dn\u00e9 dohody na skr\u00e1tenie dodac\u00edch leh\u00f4t pri n\u00fadzov\u00fdch v\u00fdmen\u00e1ch strojov. Kontaktujte n\u00e1s pre inform\u00e1cie o ve\u013ekosti vozov\u00e9ho parku, ro\u010dnom objeme a r\u00e1mcov\u00fdch cen\u00e1ch.<\/p>\n<\/div>\n

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\ud83c\udf21\ufe0f<\/div>\n

\u221225 \u00b0C a\u017e +90 \u00b0C \u2013 Cel\u00fd klimatick\u00fd rozsah<\/h3>\n

EP-SE407T3 maintains the same \u221225\u00b0C to +90\u00b0C operating range as EP-SE406BT3, despite the 50% torque increase. The 350 kg nodular iron housing’s thermal inertia \u2014 350 \u00d7 500 J\/(kg\u00b7K) = 175 kJ per degree Kelvin \u2014 provides substantial time before housing temperature rises under sustained load. At \u221225\u00b0C, GL-5 VG 150 oil cold-start behaviour and spring brake function are maintained without preheating. Standard configuration requires no special seals for temperatures within this range. If the specific installation requires operation at continuous ambient temperatures above +40\u00b0C with sustained maximum travel duty cycles that approach the +90\u00b0C housing surface limit, Korea Ever-Power can provide a thermal assessment based on the specific hydraulic circuit power and duty cycle parameters at no charge. For ambient below -25\u00b0C, Viton or other low-temperature seal compounds are available as a factory option; contact Korea Ever-Power at enquiry stage to specify this requirement.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

\"Bal\u00edk<\/p>\n

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Recenzie v ter\u00e9ne<\/h2>\n
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Z<\/div>\n
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W. Nakamura \u2014 riadite\u013e pre pohonn\u00e9 \u00fastrojenstvo pre \u0165a\u017eobn\u00fd priemysel<\/div>\n
Overen\u00fd n\u00e1kup \u00b7 K\u00f3be, Japonsko<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

Vyr\u00e1bame hydraulick\u00e9 bansk\u00e9 r\u00fdpadl\u00e1 s nosnos\u0165ou 280 ton pre klientov z oblasti \u0165a\u017eby uhlia a medi v \u00c1zii a Austr\u00e1lii. Na\u0161a aktu\u00e1lna \u0161pecifik\u00e1cia pre pohony podvozku je EP-SE407T3 pri i=90. Spolo\u010dnos\u0165 Korea Ever-Power potvrdila rozmerov\u00fa zhodu s na\u0161imi existuj\u00facimi pohonmi do 24 hod\u00edn od n\u00e1\u0161ho po\u010diato\u010dn\u00e9ho dopytu \u2013 presn\u00e1 zhoda v\u0161etk\u00fdch kritick\u00fdch rozmerov bez \u00faprav. In\u0161tal\u00e1cia v ter\u00e9ne v na\u0161om austr\u00e1lskom banskom are\u00e1li s 50-tonov\u00fdm servisn\u00fdm \u017eeriavom: 7 hod\u00edn na ka\u017ed\u00fa stranu vr\u00e1tane overenia funkcie brzdy. Po\u010das 3 100 hod\u00edn prev\u00e1dzky v otvorenej bani v uho\u013enom prachu pri okolitej teplote 40 \u00b0C pl\u00e1vaj\u00face kovov\u00e9 tesnenia udr\u017eiavali \u010dist\u00e9 vzorky oleja vo v\u0161etk\u00fdch \u0161tyroch jednotk\u00e1ch. Brzda s kr\u00fatiacim momentom 530 N\u00b7m dr\u017e\u00ed plne nalo\u017een\u00fd stroj (285 ton brutto) nehybne na na\u0161ej 12\u00b0 prepravnej ceste \u2013 \u010do sa potvrdzuje pri ka\u017edej 500-hodinovej kontrole. Prechod z eur\u00f3pskych pohonov OEM zn\u00ed\u017eil jednotkov\u00e9 n\u00e1klady pribli\u017ene o 421 TP3T bez ak\u00e9hoko\u013evek kompromisu vo v\u00fdkone.<\/p>\n

EP-SE407T3, i=90 \u00b7 285-tonov\u00e9 bansk\u00e9 r\u00fdpadlo \u00b7 3 100 h uho\u013en\u00e9ho prachu, \u010dist\u00e9 tesnenia, potvrden\u00e1 brzda 12\u00b0<\/div>\n<\/div>\n
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O<\/div>\n
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O. Andersson \u2014 v\u00fdrobca origin\u00e1lnych dielov pre super\u0165a\u017ek\u00e9 \u017eeriavy<\/div>\n
Overen\u00fd n\u00e1kup \u00b7 G\u00f6teborg, \u0160v\u00e9dsko<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

We manufacture 450-tonne and 600-tonne rated crawler cranes for heavy offshore module installation and industrial plant construction. For the 450-tonne class at i=120, the spring brake equivalent is 530 \u00d7 120 = 63,600 N\u00b7m per drive \u2014 adequately holding our 450-tonne gross machine on the 10\u00b0 acceptance slope with a 1.9\u00d7 safety factor verified during type approval. Korea Ever-Power’s pre-assembled gearbox-motor packages allowed us to reduce crane undercarriage assembly time by approximately 4 hours per crane compared to separate component installation and commissioning. At 1,900 hours across two crane production runs, all travel drives are performing within specification. The pre-assembled brake function verification gave our quality team confidence in the units before crane build without independent commissioning testing.<\/p>\n

EP-SE407T3, i=120 \u00b7 450-tonov\u00fd p\u00e1sov\u00fd \u017eeriav \u00b7 1 900 h, potvrden\u00fd bezpe\u010dnostn\u00fd faktor brzdenia 1,9\u00d7<\/div>\n<\/div>\n
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N<\/div>\n
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N. Osei \u2014 mana\u017e\u00e9r pre zariadenia ve\u013ekej infra\u0161trukt\u00fary<\/div>\n
Overen\u00fd n\u00e1kup \u00b7 Accra, Ghana<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

Our infrastructure construction fleet in West Africa includes 220-tonne and 260-tonne crawler excavators operating in laterite clay and decomposed granite. Ambient temperature regularly exceeds +43\u00b0C during the dry season. EP-SE407T3 housing temperature under sustained travel duty in +43\u00b0C ambient has peaked at 83\u00b0C \u2014 comfortably within the +90\u00b0C limit. Hydraulic return circuit temperature with EP-SE407T3 is 4\u20136\u00b0C lower than with our previous supplier’s drives \u2014 attributable to the stated >94% efficiency. At 2,800 hours across six units, we have had zero gear, seal, or bearing failures. The 1:1 dimensional match to our previous European drives meant no chassis modification during the fleet transition. Korea Ever-Power’s 7\u201314 day stock delivery has eliminated the 10\u201312 week lead times we previously experienced.<\/p>\n

EP-SE407T3 \u00b7 260-tonov\u00e9 r\u00fdpadlo Z\u00e1padn\u00e1 Afrika \u00b7 maxim\u00e1lna teplota 43 \u00b0C, kryt 83 \u00b0C, 2 800 h bez poruchy<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Korea Ever-Power \u2013 Kompletn\u00e9 portf\u00f3lio pohonov<\/h2>\n

EP-SE407T3 is the largest triple-stage planetary gearbox in the SE series covered here. Korea Ever-Power’s SE range extends to 450,000 N\u00b7m and beyond for the largest mining and tunnelling machines. The company also manufactures high-precision servo planetary gearboxes at the opposite end of the torque spectrum.<\/p>\n

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36 000 N\u00b7m
\nTrojstup\u0148ov\u00fd T3 \u00b7 i=63\u2013136 \u00b7 530 N\u00b7m Brzda \u00b7 350 kg<\/span><\/p>\n

S\u00e9ria Korea Ever-Power SE \u2013 naj\u0161ir\u0161\u00ed sortiment p\u00e1sov\u00fdch pohonov v tomto odvetv\u00ed<\/p>\n<\/div>\n<\/div>\n

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Plan\u00e9tov\u00e9 prevodovky s pohonom p\u00e1sov \u2013 kompletn\u00fd rad SE<\/h3>\n

SE400T1 (1 300 N\u00b7m, T1) a\u017e SE407T3 (36 000 N\u00b7m, T3, tento model). Modely s vy\u0161\u0161ou kapacitou a\u017e do 450 000 N\u00b7m+ pre najv\u00e4\u010d\u0161ie bansk\u00e9 r\u00fdpadl\u00e1 a \u0161t\u00edtov\u00e9 raziace stroje. Spolo\u010dnos\u0165 Korea Ever-Power m\u00f4\u017ee na po\u017eiadanie poskytn\u00fa\u0165 poradenstvo pri v\u00fdbere modelov nad SE407T3.<\/p>\n<\/div>\n

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Vysoko presn\u00e9 plan\u00e9tov\u00e9 prevodovky \u2014 servo a CNC<\/a><\/h3>\n

P0 \u22641 arcmin a\u017e P2. S\u00e9rie EP-TM, EP-TNF, EP-TEG, EP-TMR. Rad plan\u00e9tov\u00fdch prevodoviek Korea Ever-Power \u2013 od servopohonov s kr\u00fatiacim momentom 50 N\u00b7m a\u017e po trojstup\u0148ov\u00e9 ko\u013eajnicov\u00e9 pohony s kr\u00fatiacim momentom 36 000 N\u00b7m \u2013 jeden v\u00fdrobca, cel\u00e9 spektrum kr\u00fatiaceho momentu.<\/p>\n

\"Rad<\/p>\n<\/div>\n

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Pohony navijakov, oto\u010d\u00ed a kolies<\/h3>\n

Pohony navijakov pre lodn\u00e9 \u017eeriavy, prevodovky pre zdv\u00edhacie plo\u0161iny na mori, pohony ot\u00e1\u010dania pre bagre a ve\u017eov\u00e9 \u017eeriavy, pohony kolies pre AWP a kolesov\u00e9 vozidl\u00e1. Kompletn\u00e9 portf\u00f3lio \u0165a\u017ek\u00fdch priemyseln\u00fdch prevodoviek od spolo\u010dnosti Korea Ever-Power.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Technick\u00e9 naj\u010dastej\u0161ie ot\u00e1zky<\/h2>\n
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Ot\u00e1zka<\/span>Ako sa l\u00ed\u0161i EP-SE407T3 od EP-SE406BT3, ak s\u00fa oba trojstup\u0148ov\u00e9 T3 s i=63\u2013136?<\/h3>\n

EP-SE407T3 a EP-SE406BT3 zdie\u013eaj\u00fa trojstup\u0148ov\u00fa architekt\u00faru T3, rozsah prevodov i=63\u2013136, rovnak\u00fd typ pl\u00e1vaj\u00faceho mechanick\u00e9ho tesnenia, rovnak\u00fd teplotn\u00fd rozsah od -25 \u00b0C do +90 \u00b0C a rovnak\u00fd pl\u00e1n v\u00fdmeny oleja (prv\u00e1 v\u00fdmena po 150 hodin\u00e1ch, potom po 1 000 hodin\u00e1ch alebo ro\u010dne). Rozdiely s\u00fa v\u00fdlu\u010dne ot\u00e1zkou rozsahu na \u00farovni komponentov: EP-SE407T3 m\u00e1 menovit\u00fd kr\u00fatiaci moment 36 000 N\u00b7m (oproti 24 000 N\u00b7m, +50%), m\u00e1 pru\u017einov\u00fa brzdu s kr\u00fatiacim momentom 530 N\u00b7m (oproti 430 N\u00b7m, +23%), v\u00e1\u017ei 350 kg (oproti 250 kg, +40%) a je ur\u010den\u00fd pre triedu strojov s hmotnos\u0165ou 200 \u2013 350 ton (oproti 100 \u2013 200 ton\u00e1m pre SE406BT3). Ak si chcete vybra\u0165 medzi nimi: vypo\u010d\u00edtajte po\u017eadovan\u00fd kr\u00fatiaci moment pohonu p\u00e1su na jednotku pomocou celkovej hmotnosti stroja, uhla sklonu, polomeru ozuben\u00e9ho kolesa, koeficientu valiv\u00e9ho odporu a dynamick\u00e9ho faktora r\u00e1zov. Ak v\u00fdsledok s aplikovan\u00fdm faktorom r\u00e1zov klesne pod 24 000 N\u00b7m s dostato\u010dnou bezpe\u010dnostnou rezervou, spr\u00e1vnou vo\u013ebou je SE406BT3 \u2013 \u013eah\u0161\u00ed, lacnej\u0161\u00ed a s krat\u0161\u00edm \u010dasom in\u0161tal\u00e1cie. Ak v\u00fdsledok dosiahne alebo prekro\u010d\u00ed 22 000 N\u00b7m s faktorom r\u00e1zov (\u010do znamen\u00e1 nedostato\u010dn\u00fa bezpe\u010dnostn\u00fa rezervu pri 24 000 N\u00b7m), je potrebn\u00fd EP-SE407T3. Spolo\u010dnos\u0165 Korea Ever-Power vykon\u00e1 tento v\u00fdpo\u010det pre v\u00e1\u0161 konkr\u00e9tny stroj bezplatne a v\u00fdsledok s odpor\u00fa\u010dan\u00fdm pomerom vr\u00e1ti v ten ist\u00fd de\u0148.<\/p>\n<\/div>\n

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Ot\u00e1zka<\/span>Ak\u00fd objem oleja sa vz\u0165ahuje na trojstup\u0148ov\u00fd kryt s hmotnos\u0165ou 350 kg a ako to ovplyv\u0148uje prv\u00fa v\u00fdmenu po 150 hodin\u00e1ch?<\/h3>\n

EP-SE407T3’s triple-stage housing contains approximately 12.0\u201318.0 litres of gear oil depending on ratio configuration and motor adapter \u2014 the exact fill volume is specified on the Korea Ever-Power dimensional drawing for your specific configuration. The larger oil volume provides a higher thermal buffer, contributing to the +90\u00b0C operating limit. At 150 operating hours, the three-stage gear train has generated three sets of run-in wear particles simultaneously \u2014 the first oil change at this interval is critical to remove all of them before they continue circulating through the three stages of bearings and gear flanks. Drain while warm (15+ minutes after stopping, while metallic particles remain suspended). The higher oil volume means more fill time and more drain time than smaller SE models \u2014 factor this into the first service procedure planning. Subsequent changes: 1,000 hours or annually. Use API GL-5 ISO VG 150 (ambient below +15\u00b0C) or VG 220 (above +15\u00b0C). Never mix grades.<\/p>\n<\/div>\n

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Ot\u00e1zka<\/span>Dok\u00e1\u017ee pru\u017einov\u00e1 brzda s kr\u00fatiacim momentom 530 N\u00b7m dostato\u010dne udr\u017ea\u0165 300-tonov\u00fd stroj na strmom sklone pri akomko\u013evek pomere?<\/h3>\n

The spring brake’s effective output-side hold is 530 N\u00b7m \u00d7 selected ratio. At the lowest ratio i=63, the effective hold is 33,390 N\u00b7m per drive. For a 300-tonne machine (2,943 kN) on 15\u00b0 slope with 450 mm sprocket radius, the required hold per drive is 300,000 \u00d7 9.81 \u00d7 sin15\u00b0 \u00d7 0.45 \u00f7 2 = approximately 171,000 N\u00b7m \u00f7 2 = 85,500 N\u00b7m. Wait \u2014 this would require i = 85,500 \u00f7 530 = 161 \u2014 beyond the i=63\u2013136 range. Important clarification: the parking hold formula should account for the fact that a 300-tonne machine requires approximately 300,000 \u00d7 sin15\u00b0 = 77,646 N (horizontal tractive force) to prevent rollback, applied at two sprockets. T per drive = 77,646 \u00d7 0.45 \u00f7 2 = 17,470 N\u00b7m required per drive. Required ratio for brake: 17,470 \u00f7 530 = 33 \u2014 which is far below i=63. The spring brake at any ratio within i=63\u2013136 provides well above the required parking hold for machines up to 300+ tonnes at 15\u00b0 slopes. Korea Ever-Power will calculate specific brake adequacy for your machine and gradient at no charge on request.<\/p>\n<\/div>\n

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Ot\u00e1zka<\/span>Ak\u00fd je pl\u00e1n \u00fadr\u017eby a kontrol brzdovej zostavy s kr\u00fatiacim momentom 530 N\u00b7m?<\/h3>\n

Brzda s kr\u00fatiacim momentom 530 N\u00b7m v prevodovke EP-SE407T3 je mokr\u00e1 viaclamelov\u00e1 jednotka pracuj\u00faca s rovnak\u00fdm prevodov\u00fdm olejom GL-5 ako plan\u00e9tov\u00e9 stupne. Harmonogram v\u00fdmeny oleja (prv\u00e1 v\u00fdmena 150 hod\u00edn, potom 1 000 hod\u00edn ro\u010dne) sl\u00fa\u017ei aj ako prim\u00e1rny mechanizmus monitorovania stavu brzdy: po\u010det kovov\u00fdch \u010dast\u00edc vo vzork\u00e1ch oleja pri ka\u017edej v\u00fdmene odr\u00e1\u017ea opotrebovanie z\u00e1beru ozuben\u00fdch kolies aj brzdov\u00e9ho kot\u00fa\u010da. Ne\u00famern\u00e9 zv\u00fd\u0161enie po\u010dtu kovov\u00fdch \u010dast\u00edc v porovnan\u00ed s v\u00fdchodiskovou hodnotou z\u00e1beru ozuben\u00fdch kolies nazna\u010duje, \u017ee je potrebn\u00e1 kontrola brzdov\u00e9ho kot\u00fa\u010da. Pri ro\u010dnej alebo polro\u010dnej kontrole funkcie brzdy: aplikujte riadiaci tlak (15 \u2013 30 barov) a skontrolujte, \u010di sa bubon vo\u013ene ot\u00e1\u010da; uvo\u013enite riadiaci tlak a skontrolujte, \u010di sa bubon zablokuje do jednej sekundy. T\u00fato kontrolu je mo\u017en\u00e9 vykona\u0165 pri akejko\u013evek pl\u00e1novanej v\u00fdmene oleja alebo intervale \u00fadr\u017eby bez demont\u00e1\u017ee pohonu z podvozku pomocou pr\u00edstupov\u00e9ho portu rozhrania motora a prenosn\u00e9ho zdroja tlaku. Spolo\u010dnos\u0165 Korea Ever-Power poskytuje postup kontroly funkcie brzdy v servisnej dokument\u00e1cii dod\u00e1vanej s ka\u017edou jednotkou. Ak je potrebn\u00e1 v\u00fdmena brzdov\u00e9ho kot\u00fa\u010da, spolo\u010dnos\u0165 Korea Ever-Power dod\u00e1va kot\u00fa\u010dov\u00fd blok s kr\u00fatiacim momentom 530 N\u00b7m ako s\u00fapravu na v\u00fdmenu \u2013 v\u0161etky trecie kot\u00fa\u010de, oce\u013eov\u00e9 odde\u013eovacie dosky a s\u00faprava O-kr\u00fa\u017ekov \u2013 bez nutnosti \u00faplnej demont\u00e1\u017ee jednotky. Ke\u010f\u017ee brzda v modeli EP-SE407T3 m\u00e1 v\u00e4\u010d\u0161\u00ed zv\u00e4zok kot\u00fa\u010dov ako brzda s kr\u00fatiacim momentom 430 N\u00b7m v modeli EP-SE406BT3, s\u00faprava obsahuje viac trec\u00edch kot\u00fa\u010dov a postup v\u00fdmeny si vy\u017eaduje o nie\u010do viac \u010dasu \u2013 na v\u00fdmenu brzdov\u00e9ho kot\u00fa\u010da na rozhran\u00ed motora po\u010d\u00edtajte so 4 \u2013 6 hodinami, pri\u010dom jednotka zostane v podvozku. Na pr\u00edstup k brzdov\u00e9mu kot\u00fa\u010du nie je potrebn\u00e9 \u017eiadne \u0161peci\u00e1lne n\u00e1radie okrem \u0161tandardn\u00fdch imbusov\u00fdch a momentov\u00fdch k\u013e\u00fa\u010dov.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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\u0160pecifikujte EP-SE407T3 \u2013 Prevodov\u00fd pomer, primeranos\u0165 brzdnej sily a rozmerov\u00e1 zhoda overen\u00e9 pred objedn\u00e1vkou<\/h2>\n

Uve\u010fte hmotnos\u0165 stroja, najstrm\u0161\u00ed sklon, \u0161pecifik\u00e1ciu motora, cie\u013eov\u00fa r\u00fdchlos\u0165 jazdy a model pohonu. V\u00fdber prevodov\u00e9ho pomeru Korea Ever-Power, primeranos\u0165 brzdnej sily a zhodu rozmerov \u2013 v ten ist\u00fd de\u0148.<\/p>\n

36 000 N\u00b7m \u00b7 i=63\u2013136 \u00b7 Trojstup\u0148ov\u00e1 T3 \u00b7 pru\u017einov\u00e1 brzda 530 N\u00b7m \u00b7 >94% \u00b7 \u221225 \u00b0C a\u017e +90 \u00b0C \u00b7 ~350 kg<\/p>\n

Vy\u017eiada\u0165 cenov\u00fa ponuku \u2014 EP-SE407T3 \u2192
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 <\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

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\u2605 Rovnak\u00e9 tri stupne \u2014 50% V\u00e4\u010d\u0161\u00ed kr\u00fatiaci moment: \u010co to vlastne vy\u017eaduje<\/div>\n

Plan\u00e9tov\u00e9 prevodovky s p\u00e1sov\u00fdm pohonom EP-SE406BT3 a EP-SE407T3 maj\u00fa rovnak\u00fa trojstup\u0148ov\u00fa architekt\u00faru T3, rovnak\u00fd rozsah prevodov\u00fdch pomerov i=63\u2013136 a rovnak\u00fd form\u00e1t rota\u010dn\u00e9ho telesa. Dosiahnutie kr\u00fatiaceho momentu 36 000 N\u00b7m namiesto 24 000 N\u00b7m z rovnak\u00fdch troch stup\u0148ov si v\u0161ak vy\u017eaduje, aby ka\u017ed\u00fd nosn\u00fd komponent v ka\u017edom stupni bol fyzicky dimenzovan\u00fd: v\u00e4\u010d\u0161\u00ed modul ozuben\u00e9ho kolesa (\u0161ir\u0161ie boky zubov a v\u00e4\u010d\u0161\u00ed priemer rozstupu na plan\u00e9tu), \u0165a\u017e\u0161ie un\u00e1\u0161a\u010de plan\u00e9t, v\u00e4\u010d\u0161ie ku\u017eel\u00edkov\u00e9 lo\u017eisk\u00e1 na rozhran\u00ed bubna a vretena a hrub\u0161ie steny telesa z tv\u00e1rnej liatiny na udr\u017eanie zodpovedaj\u00faco vy\u0161\u0161ej reakcie kr\u00fatiaceho momentu. Toto zv\u00e4\u010d\u0161enie rozmerov zodpoved\u00e1 za celkov\u00fd rozdiel 100 kg v suchej hmotnosti \u2013 350 kg oproti 250 kg. Pru\u017einov\u00e1 brzda sa tie\u017e \u00famerne prisp\u00f4sobuje: 530 N\u00b7m oproti 430 N\u00b7m, \u010do poskytuje 72 080 N\u00b7m efekt\u00edvneho udr\u017eania na v\u00fdstupnej strane na pohon pri i=136 oproti 58 480 N\u00b7m pre SE406BT3.<\/p>\n

Trieda obsluhovan\u00fdch strojov sa zodpovedaj\u00facim sp\u00f4sobom zvy\u0161uje: zatia\u013e \u010do SE406BT3 je ur\u010den\u00fd pre plo\u0161iny s nosnos\u0165ou 100 \u2013 200 ton, EP-SE407T3 pokr\u00fdva plo\u0161iny s nosnos\u0165ou 200 \u2013 350+ ton \u2013 ve\u013ekokapacitn\u00e9 bansk\u00e9 r\u00fdpadl\u00e1, super\u0165a\u017ek\u00e9 p\u00e1sov\u00e9 \u017eeriavy a ve\u013ek\u00e9 podporn\u00e9 plo\u0161iny na razenie tunelov, ktor\u00e9 presahuj\u00fa kr\u00fatiaci moment SE406BT3 s primeranou bezpe\u010dnostnou rezervou.<\/p>\n<\/div>","protected":false},"featured_media":838,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[966],"product_tag":[],"class_list":["post-834","product","type-product","status-publish","has-post-thumbnail","product_cat-track-drive-planetary-gearbox","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/product\/834","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/comments?post=834"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/media\/838"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/media?parent=834"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/product_brand?post=834"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/product_cat?post=834"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/product_tag?post=834"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}