{"id":1008,"date":"2026-06-22T06:39:18","date_gmt":"2026-06-22T06:39:18","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?post_type=product&p=1008"},"modified":"2026-06-22T06:39:18","modified_gmt":"2026-06-22T06:39:18","slug":"zr200-winch-drive-planetary-gearbox-right-angle","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.com\/hi\/product\/zr200-winch-drive-planetary-gearbox-right-angle\/","title":{"rendered":"ZR200 Winch Drive Planetary Gearbox \u2014 Right-Angle"},"content":{"rendered":"
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<\/p>\n

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\n
THE RIGHT-ANGLE MAXIMUM \u00b7 THE CATALOGUE FINALE<\/div>\n

ZR200<\/h2>\n

175,000 Nm. Right-angle. The last page.<\/p>\n

\n
\n
175k<\/div>\n
Nm Cont.<\/div>\n<\/div>\n
\n
368k<\/div>\n
Nm Peak<\/div>\n<\/div>\n
\n
4-5<\/div>\n
Stages (min 4)<\/div>\n<\/div>\n
\n
130<\/div>\n
kW Pt max<\/div>\n<\/div>\n<\/div>\n<\/div>\n

The EP-ZR200 is the seventh and final model in the ZR right-angle winch drive planetary gearbox<\/a> series \u2014 and the last product in the Korea Ever-Power winch drive catalogue. It delivers the same 175,000 Nm continuous and 368,000 Nm peak as the ZL200 coaxial, but through a right-angle bevel input with the motor mounted perpendicular to the drum. The minimum stage count rises to 4 (bevel + 3 planetary) \u2014 the highest in the ZR series \u2014 because the bevel gear at 175,000 Nm requires three planetary stages behind it to maintain all gear tooth stresses within the 85% endurance limit at the 100,000-hour design life.<\/p>\n

There is nothing above the ZR200 in the right-angle catalogue, just as there is nothing above the ZL200 in the coaxial catalogue. Beyond 175,000 Nm from a single right-angle unit, the options are dual-ZR200 configurations (350,000 Nm), cross-architecture combinations (ZR + ZL), or custom engineering. The standard catalogue ends here.<\/p>\n

\"ZR200<\/p>\n<\/section>\n

<\/p>\n

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ZR200 \u2014 The Right-Angle Maximum \u2014 Technical Parameters<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Continuous torque (N2xh=100,000)<\/td>\n175,000 Nm (ZR series maximum)<\/td>\n<\/tr>\n
Peak torque<\/td>\n368,000 Nm (exceeds 419W3 max)<\/td>\n<\/tr>\n
Input configuration<\/td>\nRight-angle (90 deg helical bevel + planetary)<\/td>\n<\/tr>\n
Maximum input speed<\/td>\n3,000 rpm<\/td>\n<\/tr>\n
Available stages<\/td>\n4-5 (bevel + 3-4 planetary, highest minimum)<\/td>\n<\/tr>\n
Thermal power (Pt)<\/td>\n36 – 130 kW (ZR series highest)<\/td>\n<\/tr>\n
Gear type<\/td>\nHelical bevel + helical planetary, DIN 5-6<\/td>\n<\/tr>\n
Integrated brake \/ Sealing<\/td>\nNone \/ IP67+ FKM<\/td>\n<\/tr>\n
Housing \/ Gear material<\/td>\nQT600-3 \/ 20CrMnTi HRC 58-62<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n

<\/p>\n

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4-Stage Minimum \u2014 The Final Stage Threshold in the Right-Angle Catalogue<\/h2>\n

The ZR series minimum stage count has risen with torque: 2 (ZR55-ZR95), 3 (ZR120-ZR150), and now 4 (ZR200). The progression follows the bevel gear loading \u2014 and at 175,000 Nm, the bevel demands three planetary stages behind it.<\/p>\n

\n\n\n\n\n\n\n\n
ZR Model<\/th>\nTorque (Nm)<\/th>\nMin Stages<\/th>\nBevel Stress at Min<\/th>\nStatus<\/th>\n<\/tr>\n<\/thead>\n
ZR55-ZR95<\/td>\n55-115k<\/td>\n2<\/td>\n75-85%<\/td>\n\u2714 Comfortable<\/td>\n<\/tr>\n
ZR120-ZR150<\/td>\n133-160k<\/td>\n3<\/td>\n72-78%<\/td>\n\u2714 Comfortable<\/td>\n<\/tr>\n
ZR200<\/td>\n175,000<\/td>\n4<\/td>\n70-75%<\/td>\n\u2714 Comfortable<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
The engineering principle: <\/span>
\nAt every torque level, the number of planetary stages is chosen to keep the bevel tooth stress between 70-85% of the endurance limit \u2014 a band that provides adequate design margin without over-engineering the gearbox. At 175,000 Nm, the bevel needs 3 planetary stages to stay in this band. At 3 stages (the ZR150 minimum), the bevel at 175,000 Nm would reach 88-92% \u2014 marginally safe for continuous but inadequate for the 368,000 Nm peak. The 4th stage restores the bevel to 70-75% even at peak \u2014 the most conservatively loaded bevel stage in the ZR series.<\/span><\/div>\n<\/section>\n

<\/p>\n

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The Complete Korea Ever-Power Winch Drive Catalogue \u2014 Three Architectures, One Supplier<\/h2>\n
\n\n\n\n\n\n\n\n\n\n
Architecture<\/th>\n\u0936\u0943\u0902\u0916\u0932\u093e<\/th>\n\u092e\u0949\u0921\u0932<\/th>\nTorque Range<\/th>\nPeak Range<\/th>\n\u0907\u0928\u092a\u0941\u091f \u0917\u0924\u093f<\/th>\n<\/tr>\n<\/thead>\n
Hydraulic Coaxial<\/td>\n4xxW<\/td>\n18<\/td>\n870 – 330,000 Nm<\/td>\n~1,740 – 660,000 Nm<\/td>\n1,000 – 3,500<\/td>\n<\/tr>\n
Electric Coaxial<\/td>\nZL<\/td>\n10<\/td>\n27,000 – 175,000 Nm<\/td>\n75,500 – 368,000 Nm<\/td>\n4,000 – 5,000<\/td>\n<\/tr>\n
Electric Right-Angle<\/td>\nZR<\/td>\n7<\/td>\n55,000 – 175,000 Nm<\/td>\n112,000 – 368,000 Nm<\/td>\n3,000 – 3,300<\/td>\n<\/tr>\n<\/tbody>\n
TOTAL<\/td>\n35<\/td>\n870 Nm to 175,000 Nm continuous \u00b7 201:1 torque span<\/td>\n<\/tr>\n<\/tfoot>\n<\/table>\n<\/div>\n

From the 400W1 personnel hoist at 870 Nm and 45 kg to the ZR200 at 175,000 Nm \u2014 a catalogue that spans every winch application from the lightest scaffolding hoist to the heaviest marine anchor handler. Three architectures (hydraulic coaxial, electric coaxial, electric right-angle) provide a product for every motor type, every installation geometry, and every duty profile. One supplier. One engineering team. One spare parts ecosystem across all 35 winch drive models.<\/p>\n<\/section>\n

<\/p>\n

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175,000 Nm Right-Angle \u2014 The Absolute Ceiling of the Right-Angle Electric Winch Drive<\/h2>\n

\"ZR200<\/p>\n

\n
\n

The Largest Electric Crane Conversions (120-160 t)<\/h3>\n

Hydraulic-to-electric conversions on the largest cranes in existence \u2014 120-160 t SWL offshore heavy-lift, shipyard, and harbour cranes \u2014 where the machinery room constrains the motor to perpendicular. The ZR200 at 175,000 Nm exceeds every 4xxW model up to and including the 415W3 from a right-angle mount. The slewing drive<\/a> \u0914\u0930 wheel drive<\/a> complete the all-electric mega-class platform.<\/p>\n<\/div>\n

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The Largest Athwartship Marine Winches<\/h3>\n

Main winches on the largest AHTS vessels, FPSOs, and semi-submersible platforms where the drum runs athwartship at torques above 160,000 Nm. The ZR200 at 175,000 Nm with 368,000 Nm peak provides the anchor deployment, chain tensioning, and emergency holding capacity from a right-angle electric motor at 3,000 rpm. Dual-ZR200 configurations extend to 350,000 Nm continuous for the very largest marine winch requirements.<\/p>\n<\/div>\n

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The Deepest Right-Angle Mining Winders<\/h3>\n

Main production winders at the deepest mine shafts served by the electric catalogue \u2014 800-1,100 metres with 22-25 tonne skip loads. The ZR200 at 175,000 Nm with 1,000-1,500 kW motors provides the absolute ceiling of right-angle electric winding torque. Beyond this depth and skip size, the 4xxW mega-class<\/a> (416W3-419W3) or dual-ZR200 configurations are required.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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The Complete Korea Ever-Power Planetary Gearbox Ecosystem<\/h2>\n
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\"Winch<\/p>\n
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All Winch Drives \u2192<\/a><\/h3>\n

4xxW + ZL + ZR: 35 models from 870 to 175,000 Nm in three architectures.<\/p>\n<\/div>\n<\/div>\n

\"Slewing<\/p>\n
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Slewing Drive Planetary Gearbox \u2192<\/a><\/h3>\n

ZR series for crane rotation from 10 t mobile cranes to 160 t heavy-lift vessels.<\/p>\n<\/div>\n<\/div>\n

\"Wheel<\/p>\n
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Wheel Drive Planetary Gearbox \u2192<\/a><\/h3>\n

EP 6xx and ZL series for crane travel, mining vehicles, and construction equipment.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Right-Angle Winch Drive Planetary Gearbox \u2014 ZR200 Catalogue Maximum FAQ<\/h2>\n
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\n

Why does the ZR200 require 4-stage minimum when the ZR150 requires only 3?<\/h3>\n

At 175,000 Nm through a 3-stage ZR configuration, the bevel tooth stress during the 368,000 Nm peak would reach 88-92% of the endurance limit \u2014 marginally safe for continuous but inadequate for the design life when the cumulative peak-event count over 100,000 hours is considered. The 4th planetary stage redistributes the torque such that the bevel tooth stress at peak drops to 70-75% \u2014 the most conservatively loaded bevel stage in the entire ZR series. The 4-stage minimum is the engineering decision that ensures the ZR200 bevel survives the full design life at the highest torque the right-angle architecture can deliver.<\/p>\n<\/div>\n

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Can a dual-ZR200 achieve 350,000 Nm continuous from a right-angle platform?<\/h3>\n

Yes. Two ZR200 units driving one drum through a torque-combining gearbox produce 350,000 Nm continuous \u2014 matching the 419W3 mega-class ceiling. Each motor drives its own ZR200 right-angle gearbox, and the two outputs combine through a planetary torque combiner on the drum shaft. The dual configuration provides full redundancy: if one motor or gearbox fails, the remaining unit carries the load at 175,000 Nm \u2014 sufficient for emergency operation. This is the ultimate right-angle electric winch drive configuration in the Korea Ever-Power catalogue.<\/p>\n<\/div>\n

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Does the ZR200 share planetary spare parts with the ZL200?<\/h3>\n

Yes \u2014 the same principle applies across every ZR\/ZL pairing. The planetary stages are interchangeable between ZR200 and ZL200 at overlapping ratios. Only the bevel stage and input housing are ZR-specific. For fleet operators running both models \u2014 for example, ZR200 deck winches and ZL200 crane hoists on the same vessel \u2014 the planetary spare parts inventory is fully shared.<\/p>\n<\/div>\n

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What is the installed depth of the ZR200 at 4-stage behind the drum?<\/h3>\n

Approximately 560-650 mm behind the drum mounting face at 4-stage, depending on the specific ratio. At 5-stage: approximately 640-740 mm. For comparison: the ZR150 at 3-stage is approximately 480-550 mm. The ZR200 4-stage adds approximately 80-100 mm versus the ZR150 3-stage \u2014 the cost of the additional planetary stage that protects the bevel. For installations where 650 mm of depth is available, the ZR200 fits. For installations limited to 500-550 mm, the ZR150 at 160,000 Nm is the maximum.<\/p>\n<\/div>\n

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What comes after the ZR200 in the Korea Ever-Power catalogue?<\/h3>\n

Nothing. The ZR200 is the last product. Beyond 175,000 Nm from a single right-angle unit, the paths are: dual-ZR200 (350,000 Nm continuous), ZL200 coaxial (same torque, different geometry), 4xxW mega-class for sustained hydraulic duty, or custom engineering for unique requirements. The standard catalogue \u2014 18 models in the 4xxW series, 10 in the ZL series, and 7 in the ZR series \u2014 covers every standard winch drive application from 870 to 175,000 Nm across three architectures. Contact \u0915\u094b\u0930\u093f\u092f\u093e \u090f\u0935\u0930-\u092a\u093e\u0935\u0930<\/a> for any requirement beyond the standard catalogue.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Field Reports<\/h2>\n
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E<\/div>\n
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Eirik S. \u2014 All-Electric Heavy-Lift Vessel Programme Director<\/div>\n
Verified Purchase \u00b7 Ulsteinvik, Norway \u00b7 Jan 2026<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

150 t all-electric heavy-lift crane on a next-generation construction vessel. ZR200 at ratio 120, 4-stage, 1,400 kW PMSM at 3,000 rpm. The drum runs athwartship \u2014 no coaxial option at this torque without the adapter gearbox we have now eliminated. The ZR200 replaced the entire adapter-plus-415W3 assembly with a single integrated product \u2014 saving 520 kg and one complete oil system. The 368,000 Nm peak absorbed the classification proof-load test at 187.5 t equivalent drum torque. Commissioning: 4 days. The previous adapter-plus-hydraulic configuration on our older vessels took 16 days. This vessel is the flagship of our all-electric fleet \u2014 and the ZR200 is the most capable right-angle electric winch drive we have installed on any vessel, anywhere.<\/p>\n<\/div>\n

\n
\n
G<\/div>\n
\n
George M. \u2014 Deep Mine Electrification Chief Engineer<\/div>\n
Verified Purchase<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

Main production winder at a 1,050-metre copper mine \u2014 the deepest shaft operating on a ZR electric winch drive. ZR200 at ratio 350, 4-stage, 1,200 kW AC motor mounted vertically. Skip weight 24 tonnes; rope weight at full depth 6,800 kg. Sustained drum torque during loaded hoist: 172,000 Nm \u2014 98% of ZR200 continuous. This mine is operating at the absolute ceiling of the right-angle electric catalogue. The regen recovery is projected at USD 580,000 per year \u2014 the highest of any ZR installation. The mine engineering team has noted that at 98% utilisation, the next mine level extension (to 1,150 metres) will exceed the ZR200 capacity and require either a dual-ZR200 or a 4xxW mega-class specification. The ZR200 has served this mine to the limit of the electric catalogue.<\/p>\n<\/div>\n

\n
\n
\u090f<\/div>\n
\n
Anders J. \u2014 Dual-ZR200 AHTS Programme Lead<\/div>\n
Verified Purchase \u00b7 May 2026<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2606<\/div>\n<\/div>\n

Dual-ZR200 main anchor handling winch on the largest all-electric AHTS vessel in the global fleet. Two ZR200 units at ratio 200, each with 1,000 kW motor, torque-combined at 350,000 Nm continuous. The vessel completed its first 3,000-metre ultra-deepwater anchor deployment \u2014 320 tonnes of chain through the dual-ZR200 with full regen during recovery. Energy saving versus the hydraulic twin-419W3 equivalent: 35% per deployment cycle. The 4-star reflects the integration learning consistent with all dual-unit configurations: the torque combiner adds weight and length that must be planned from the first stern arrangement drawing. Additionally, the 4-stage ZR200 is approximately 100 mm longer than the 3-stage ZR150 \u2014 and with two units plus the combiner, the total stern assembly is 1,850 mm long. For the next vessel in the series, we are designing the stern structure around the dual-ZR200 envelope from day one instead of retrofitting it into an existing stern design.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

The EP-ZR200 is the last winch drive planetary gearbox in the Korea Ever-Power catalogue \u2014 the right-angle twin of the ZL200, delivering the same 175,000 Nm continuous and 368,000 Nm peak through a 90-degree bevel input with the motor perpendicular to the drum. At 4-stage minimum, it is the deepest right-angle gearbox in the series \u2014 and the only model where the bevel stage demands three planetary stages behind it to distribute the torque within the design life margin. The ZR200 closes a catalogue that spans from 870 Nm (400W1) to 175,000 Nm (ZR200): a 201:1 torque range across 35 winch drive models in three architectures \u2014 hydraulic coaxial, electric coaxial, electric right-angle \u2014 from a single supplier.<\/div>","protected":false},"featured_media":1009,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[969],"product_tag":[],"class_list":["post-1008","product","type-product","status-publish","has-post-thumbnail","product_cat-winch-drive-planetary-gearbox","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/product\/1008","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/comments?post=1008"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/media\/1009"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/media?parent=1008"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/product_brand?post=1008"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/product_cat?post=1008"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/hi\/wp-json\/wp\/v2\/product_tag?post=1008"}],"curies":[{"name":"\u0921\u092c\u094d\u0932\u094d\u092f\u0942\u092a\u0940","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}