{"id":655,"date":"2026-05-29T05:12:32","date_gmt":"2026-05-29T05:12:32","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?p=655"},"modified":"2026-05-29T05:13:20","modified_gmt":"2026-05-29T05:13:20","slug":"planetary-gearbox-food-beverage-processing-ip67","status":"publish","type":"post","link":"https:\/\/planetary-gearboxes.com\/sv\/planetary-gearbox-food-beverage-processing-ip67\/","title":{"rendered":"Planetary Gearbox for Food and Beverage Processing \u2014 IP67 and Hygienic Design"},"content":{"rendered":"

<\/p>\n
\"planetary<\/p>\n
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Food & Beverage Processing \u00b7 Zone-by-Zone Guide \u00b7 IP67 \u00b7 CIP \u00b7 GMP<\/div>\n

Planetary Gearbox for Food Processing \u2014
\nIP67, Washdown, and Hygienic Design<\/h1>\n

Selecting the right planetary gearbox food processing IP67 configuration determines whether your line survives the next KFDA audit or fails at the most vulnerable seal surface. Korean food production lines face conditions that destroy standard industrial gearboxes: daily CIP cycles, high-pressure washdown with NaOH at 60\u00b0C, peracetic acid, and in some zones periodic standing water. Selecting the wrong IP rating<\/strong> or shaft connection type creates contamination risks that halt production lines during KFDA audits \u2014 and IP67 must be specified at the factory, not retrofitted in the field.<\/p>\n

View EP-AER IP67 Right-Angle Series \u2192
\n<\/a><\/p>\n<\/div>\n<\/section>\n

<\/p>\n

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Why Korean Food Processing Destroys Standard Industrial Gearboxes<\/h2>\n
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The question of planetary gearbox food processing IP67 vs IP65 selection becomes critical the moment a processing zone specification calls for CIP immersion rather than spray protection. A standard industrial planetary gearbox rated IP65 will survive years of trouble-free service in a Korean automotive plant, semiconductor facility, or packaging hall. The same unit installed on a Korean fish processing conveyor head drum may fail within 8 months \u2014 not from mechanical overload, but from the chemically aggressive cleaning cycle that the IP65 seal geometry was never designed to resist.<\/p>\n

Korean food processing facilities follow a Cleaning-In-Place (CIP) protocol mandated by KFDA (Korean Food and Drug Administration) for food contact surfaces. A typical CIP sequence operates as follows:<\/p>\n

<\/p>\n

\n
\n
\u2460<\/div>\n
NaOH pre-rinse<\/strong> at 60\u00b0C \u2014 alkaline degreasing, removes protein deposits. pH 12\u201314. Pumped at 2\u20134 bar through spray nozzles.<\/div>\n<\/div>\n
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\u2461<\/div>\n
Water rinse<\/strong> \u2014 dilutes and removes caustic residue. Floor pooling is normal.<\/div>\n<\/div>\n
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\u2462<\/div>\n
Peracetic acid disinfection<\/strong> (CH\u2083CO\u2083H, 0.1\u20130.2%) \u2014 oxidising biocide. Highly corrosive to seals and metal surfaces not specifically rated for acid exposure.<\/div>\n<\/div>\n
\n
\u2463<\/div>\n
High-pressure water jet<\/strong> at 80\u2013120 bar. Directed at all surfaces including installed equipment. Active IP65 is insufficient when pooled water stands after this step.<\/div>\n<\/div>\n
\n
\u2464<\/div>\n
Steam sanitisation<\/strong> in some zones \u2014 saturated steam at 100\u2013130\u00b0C for 10\u201315 minutes. Thermal cycling stress on seals.<\/div>\n<\/div>\n<\/div>\n

IP65 seals are designed for directed water jet resistance \u2014 not for submersion in pooled peracetic acid residue. After the high-pressure rinse, water pools on floors and equipment surfaces. A gearbox mounted at floor height or with a downward-facing output shaft seal sits in this pool. The peracetic acid solution penetrates the IP65 lip seal over repeated cycles (typically 8\u201314 months), and once it enters the housing, it attacks the grease and gear surfaces from inside.<\/p>\n

Why IP67 cannot be retrofitted:<\/strong> IP67 (1 m immersion for 30 minutes per IEC 60529) requires a fundamentally different housing seal geometry \u2014 tighter housing face flatness tolerances, O-ring groove design for static immersion pressure, a different output shaft seal specification, and a solid pressure-equalisation plug replacing the breather vent. None of these changes can be applied in the field to an IP65 housing. The IP67 construction must be specified at the time of ordering \u2014 it is manufactured-in, not added on.<\/p>\n<\/div>\n

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IP65 vs IP67 \u2014 What Each Covers<\/p>\n

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IP65 \u2014 Jet protection<\/div>\n
Complete dust + water jets any direction at 12.5 L\/min, 30 kPa. Protects against spray and splash. Does NOT protect against pooled water standing around the housing or shaft seal.<\/div>\n<\/div>\n
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IP67 \u2014 Immersion protection<\/div>\n
Complete dust + immersion to 1 m depth for 30 minutes. Protects against pooled CIP solution standing around shaft seals. Requires factory-built housing geometry \u2014 field retrofit impossible.<\/div>\n<\/div>\n
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\u26a0 Available on: AE and AER only<\/div>\n
EP-AER (right-angle) and EP-AE (inline) are the only Korea Ever-Power precision series with IP67 option. EP-ABR, EP-ADR, EP-AFR are IP65 maximum.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Zone-by-Zone Specification Matrix \u2014 Korean Food Factory IP and Gearbox Selection<\/h2>\n

Korean food processing facilities are divided into hygienic zones with progressively stricter cleaning requirements from dry packaging areas to wet CIP zones and cold rooms. The correct gearbox specification is a zone decision, not a single facility-wide specification. Work through the zone type first, then temperature, then shaft connection requirement.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Zone Type<\/th>\nCIP Exposure<\/th>\nMin IP<\/th>\nTemp Range<\/th>\nRecommended Series<\/th>\n<\/tr>\n<\/thead>\n
Dry packaging \/ labelling<\/td>\nSpray only<\/td>\nIP65<\/td>\n15\u201335\u00b0C<\/td>\nEP-AB<\/a> \/ EP-BAB<\/a><\/td>\n<\/tr>\n
Wet processing (wash, cut, fill)<\/td>\nDaily NaOH + PAA + washdown jet<\/td>\nIP67 \u2605<\/td>\n5\u201340\u00b0C<\/td>\nEP-AER IP67<\/a> (R\/A) or EP-AE IP67<\/a> (inline)<\/td>\n<\/tr>\n
Cold store entry conveyor<\/td>\nSpray only<\/td>\nIP65<\/td>\n\u22125 to +10\u00b0C<\/td>\nEP-AB<\/strong> (\u221210\u00b0C rated \u2713) \u2014 NOT KF\/KH<\/span> (0\u00b0C limit)<\/td>\n<\/tr>\n
Steam CIP \/ hot wash zone<\/td>\nSteam + NaOH washdown + pooling<\/td>\nIP67 \u2605<\/td>\n5\u201390\u00b0C (peak)<\/td>\nEP-AER IP67<\/a> (confirm +90\u00b0C max rating)<\/td>\n<\/tr>\n
GMP \/ pharma clean room<\/td>\nWipe-down only<\/td>\nIP65<\/td>\n15\u201340\u00b0C<\/td>\nEP-KF-S4<\/a> shrink disc (0\u00b0C min \u2713 at indoor 15\u00b0C) \u2014 keyway-free GMP<\/td>\n<\/tr>\n
Outdoor loading dock \/ roof<\/td>\nRain only<\/td>\nIP65<\/td>\n\u22125 to +40\u00b0C<\/td>\nEP-AB \/ EP-BAB<\/strong> \u2014 NOT KF\/KH<\/span> (0\u00b0C min, outdoor Korean winter risk)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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\u26a0 Cold room and outdoor Korean winter: KF\/KH EXCLUDED<\/strong><\/p>\n

The EP-KF\/KH hypoid series has a 0\u00b0C minimum operating temperature<\/strong> \u2014 it must not be used in cold rooms, cold store entry conveyors, or any outdoor Korean installation where temperatures drop below 0\u00b0C. Standard EP-AB and EP-BAB series operate to \u221210\u00b0C and are the correct choice for these environments. This distinction is a KFDA and food safety procurement checkpoint \u2014 confirm the temperature specification in writing before installing any gearbox in a zone where temperatures may approach 0\u00b0C.<\/p>\n<\/div>\n<\/section>\n

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Hygienic Shaft Connections \u2014 Shrink Disc vs Keyway in GMP Environments<\/h2>\n
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The method of connecting the gearbox output shaft to the driven machine shaft receives significantly less attention in Korean food industry specifications than the IP rating \u2014 yet shaft connection type is an independent KFDA and GMP hygiene concern that can trigger audit findings on its own.<\/p>\n

The Keyway Problem in Food Environments<\/h3>\n

A keyway is a precision-machined slot in the shaft, receiving a rectangular key that transfers torque to the mounted component. In food processing environments, keyways create two hygienic issues: the slot geometry traps food particles, lubricant residue, and bacteria in a surface profile that is structurally difficult to clean \u2014 the slot is too deep for spray cleaning to fully penetrate and too narrow for brush cleaning tools. Over time, a keyway becomes a microbiological growth site on a shaft positioned near food contact surfaces.<\/p>\n

Korean KFDA auditors flag exposed keyways near food contact surfaces during Line 3 hygienic audits. For pharmaceutical GMP lines, keyways are typically excluded from components within the cleanroom boundary. The practical consequence: Korean food and pharma machinery designers need a keyway-free connection method that transmits the same torque as a keyed connection.<\/p>\n

The Shrink Disc Solution (KF-S4)<\/h3>\n

De EP-KF-S4 hollow shaft with shrink disc<\/a> connects to any smooth (keyway-free) shaft by clamping radially through an interference-fit disc mechanism. A set of taper-face clamping elements are driven together by a ring of tightening screws \u2014 this generates uniform radial clamping pressure around the full circumference of the shaft. No shaft machining is required. No keyway slot is created. The smooth shaft surface remains fully cleanable.<\/p>\n

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SHRINK DISC vs KEYWAY \u2014 SIDE BY SIDE<\/p>\n

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\u274c Keyway connection<\/p>\n

Shaft: machined slot
\nKey: precision fit required
\nCleaning: slot traps residue
\nGMP: flagged near food contact
\nRemoval: requires key tool<\/div>\n<\/div>\n
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\u2705 KF-S4 shrink disc<\/p>\n

Shaft: smooth bore (no machining)
\nClamping: uniform radial pressure
\nCleaning: smooth surface, fully clean
\nGMP: accepted at KFDA audit
\nRemoval: loosen clamping screws<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u26a0 KF-S4 temperature limit: 0\u00b0C minimum<\/strong><\/p>\n

The EP-KF\/KH hypoid series (including KF-S4 shrink disc variant) uses gear oil with a 0\u00b0C lower temperature limit. The KF-S4 is appropriate for GMP indoor pharmaceutical lines operating at controlled 15\u201325\u00b0C and for indoor Korean food processing above 0\u00b0C year-round. It is NOT appropriate for cold room entry shafts, outdoor Korean winter conveyors, or any installation where temperature may drop below 0\u00b0C.<\/p>\n<\/div>\n<\/div>\n

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\"hygienic<\/p>\n

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Korean KFDA compliance case \u2014 tablet coating line:<\/div>\n

Korean pharmaceutical tablet coating machine drive, EP-KF-S4 shrink disc hollow shaft, indoor clean room at 20\u00b0C. KFDA facility audit: zero findings on gearbox shaft connection. Previous keyway configuration generated a KFDA minor finding on residue accumulation during prior audit cycle. Two IQ\/OQ qualification runs completed; zero rework.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Noise in Enclosed Korean Food Facilities \u2014 When the Hypoid Series Is the Right Choice<\/h2>\n
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Korean food processing facilities are typically enclosed buildings where the reverberant sound field builds up from multiple running machines simultaneously. Korean occupational health regulations (\uc0b0\uc5c5\uc548\uc804\ubcf4\uac74\ubc95) set an 85 dB(A) eight-hour exposure limit and a 90 dB(A) two-hour limit \u2014 thresholds that are routinely challenged in three-shift Korean food production environments where operators work continuously within arm’s reach of running conveyor drives and agitator motors.<\/p>\n

Standard planetary gearboxes produce rolling-contact gear mesh noise \u2014 a characteristic mid-frequency tone at the gear mesh frequency and its harmonics. At equivalent torque output, the hypoid gear mesh of the EP-KF\/KH series produces lower noise because the curved spiral contact pattern distributes tooth engagement over a larger face area, reducing the peak impact force at tooth entry and the resulting acoustic radiation.<\/p>\n

Measured comparison in Korean food conveyor application: EP-KF-S3 at equivalent torque and speed produced 69 dB(A) at 1 m \u2014 7 dB(A) below the equivalent-torque EP-AB planetary unit’s 76 dB(A). A 7 dB(A) reduction represents approximately half the perceived loudness \u2014 a meaningful difference for operators working an 8-hour shift in a reverberant facility.<\/p>\n

When to choose EP-KF\/KH over EP-AB for food processing: <\/strong>
\nChoose KF\/KH when all three conditions are met: (1) the installation temperature is reliably above 0\u00b0C throughout all operating conditions, (2) lower operating noise is a functional requirement for operator health compliance, and (3) the hollow shaft connection (KF-S3\/S4 options) simplifies machine architecture. If the temperature cannot be guaranteed above 0\u00b0C at all times \u2014 including winter startup, cold room proximity, or outdoor exposure \u2014 use EP-AB or EP-BAB instead.<\/span><\/div>\n<\/div>\n
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<\/p>\n

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NOISE LEVEL COMPARISON \u2014 FOOD CONVEYOR (1 m, same torque\/speed)<\/p>\n

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EP-KF-S3 (hypoid)<\/span>
\n69 dB(A) \u2605<\/span><\/div>\n
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69<\/span><\/div>\n<\/div>\n<\/div>\n
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EP-AB planetary<\/span>
\n76 dB(A)<\/span><\/div>\n
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76<\/span><\/div>\n<\/div>\n<\/div>\n
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Korean OHS limit (8h)<\/span>
\n85 dB(A)<\/span><\/div>\n
\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n

KF-S3 is 7 dB(A) quieter \u2014 approx. half the perceived loudness. Both are below Korean OHS 85 dB limit, but reverberant multi-machine facilities may accumulate to the limit from multiple sources.<\/p>\n<\/div>\n

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Always confirm 0\u00b0C minimum for KF\/KH<\/div>\n

Before specifying EP-KF\/KH for any food application, confirm the minimum ambient temperature at the installation location. Korean bread cooling conveyors, pasteurisation tunnel exits, and any equipment near cold room entry can reach 2\u20135\u00b0C in winter \u2014 too close to the 0\u00b0C limit for safe specification without a controlled heated environment guarantee.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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IP67 at 90 Degrees \u2014 EP-AER for Conveyor Head Drums and CIP Zone Drives<\/h2>\n
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The most common food processing gearbox layout places the servo or induction motor outside the wet zone in a dry motor cabinet, while the output shaft penetrates the zone boundary wall to drive the conveyor head drum, agitator shaft, or filling head carousel inside the wet zone. This layout requires a right-angle gearbox at the wall penetration \u2014 the motor on the dry side, the output shaft exiting horizontally into the wet zone.<\/p>\n

De EP-AER right-angle series with IP67 option<\/a> is the only right-angle unit in the Korea Ever-Power precision range rated for this installation. EP-ABR, EP-ADR, and EP-AFR are IP65 maximum \u2014 they do not provide the immersion protection required for the wet-side output shaft in a CIP-washed zone. The IP67 option on EP-AER is factory-built and must be specified at order time.<\/p>\n

The large flange of the EP-AER series provides an additional structural benefit in conveyor applications: it distributes the overturning moment from the conveyor belt tension across a wider bolt circle than a standard square-flange unit. At a head drum running a heavily loaded product conveyor, the belt tension creates a significant bending moment on the gearbox output shaft \u2014 the large flange resists this moment by spreading the reaction load across more bolts at a larger radius.<\/p>\n

Confirmed Korean food processing case \u2014 Busan marine products: <\/strong>
\nEP-AER090 IP67 i=25, right-angle, installed on a fish processing conveyor head drive in Busan. Daily CIP cycles with NaOH and peracetic acid. 19 months continuous operation, zero IP incidents. Previous IP65 unit on the same installation failed at 8 months from peracetic acid seal degradation. Replacement with EP-AER IP67 resolved the recurring failure completely.<\/span><\/div>\n<\/div>\n
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<\/p>\n

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EP-AER Typical Food Processing Installation<\/p>\n

DRY ZONE (motor cabinet) \u2502 WET ZONE (CIP daily)
\n\u2502
\n[Motor] \u2500\u2500\u2192 [EP-AER IP67] \u2502\u2500\u2500\u2192 [Conveyor drum shaft]
\n(wall mount) \u2502 (IP67 shaft seal in
\n\u2502 CIP flood zone)
\n\u2502
\nZone boundary wall \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518IP67 covers: output shaft side
\n(wet zone exposure)
\nIP65 covers: motor input side
\n(dry zone \u2014 sufficient)<\/div>\n
EP-AER large flange mounts to the zone boundary wall. Only the output shaft penetrates into the wet zone. The IP67-rated shaft seal handles daily CIP flood exposure.<\/div>\n<\/div>\n
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EP-AER backlash note:<\/div>\n

EP-AER uses a fixed backlash of \u22648 arcmin (single-stage) \u2014 there is no P0\/P1\/P2 grade selection. For food conveyor and agitator drives where positioning precision is not a functional requirement, \u22648 arcmin is entirely adequate. If sub-3-arcmin precision is also needed in a wet CIP zone, discuss with Korea Ever-Power application team \u2014 this combination requires a non-standard configuration.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Food Agitator Drives \u2014 High Ratio, Vertical Shaft, and Back-Drive Safety<\/h2>\n
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Industrial food agitators \u2014 mixing vessels for sauces, dough, fermentation tanks, and dairy blending \u2014 require very low output speeds (1\u201310 rpm) from standard induction motor inputs (1,450 rpm), demanding reduction ratios of 150:1 to 1,450:1 in a single drive unit. The output shaft is typically vertical, driving directly down into the mixing vessel from above or up through the vessel base.<\/p>\n

De Economic Line PG II R three-stage series<\/a> covers this application efficiently: three cascaded planetary stages reach 500:1 in a single sealed unit. At 1,450 rpm input and 500:1, output speed is 2.9 rpm \u2014 directly in the target range for most sauce and dough mixing operations without a variable-frequency drive.<\/p>\n

The back-drive safety concern:<\/strong> A planetary gearbox is back-drivable \u2014 when the motor is de-energised, the viscous product in the mixing vessel can exert pressure on the impeller and attempt to rotate the output shaft against the stopped motor. For thick doughs and pastes, this pressure may be significant enough to back-drive the gearbox and creep the impeller position during loading\/unloading stops. For standard agitator applications, a servo drive electromagnetic brake on the motor shaft holds position on power-off. For safety-critical applications where a freely rotating impeller during vessel access poses a personnel risk, a downstream self-locking worm stage or an integrated mechanical brake is required.<\/p>\n<\/div>\n

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Food Agitator Drive Selection \u2014 Key Parameters<\/div>\n
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\u2460 Required output speed<\/strong><\/p>\n

Sauce mixing: 5\u201320 rpm. Dough: 2\u20138 rpm. Fermentation: 0.5\u20133 rpm. Calculate: ratio = 1,450 \u00f7 target rpm.<\/div>\n<\/div>\n
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\u2461 Torque from product viscosity<\/strong><\/p>\n

Viscous dough agitators require significantly higher starting torque than low-viscosity sauces. Use 2.5\u20133\u00d7 rated torque for start-up in thick products.<\/div>\n<\/div>\n
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\u2462 Back-drive risk assessment<\/strong><\/p>\n

Does product pressure at the impeller exceed the motor holding torque when stopped? If yes: add EM brake or downstream worm stage for safety.<\/div>\n<\/div>\n
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\u2463 CIP requirement<\/strong><\/p>\n

If the gearbox housing is in the CIP spray zone: IP67 required (AER\/AE). If in a dry motor cabinet above the vessel: IP65 (Economic Line PG II R) sufficient.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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HACCP and KFDA Documentation \u2014 What Korea Ever-Power Provides<\/h2>\n
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Korean food processing facilities operating under HACCP (Hazard Analysis and Critical Control Points) and KFDA licensing are required to document the hygienic suitability of all equipment installed in food contact zones. For gearboxes, this documentation package typically includes four items:<\/p>\n

\n
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\u2460<\/span><\/p>\n

IP67 test certificate<\/strong> \u2014 IEC 60529 test report confirming immersion protection, in Korean language format. Korea Ever-Power provides this for all EP-AER and EP-AE units with IP67 option specified.<\/div>\n<\/div>\n
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\u2461<\/span><\/p>\n

Material declaration<\/strong> \u2014 housing material, shaft material, seal material specifications. Confirms RoHS compliance. Documents that no prohibited materials are present in food-contact-adjacent components.<\/div>\n<\/div>\n
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\u2462<\/span><\/p>\n

Lubricant documentation<\/strong> \u2014 grease specification sheet confirming the lubricant is food-proximate area acceptable (H2 classification or equivalent). Note: Korea Ever-Power standard grease is H2 \u2014 food-contact-surface (H1) lubricant requires special order.<\/div>\n<\/div>\n
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\u2463<\/span><\/p>\n

Dimensional drawings for IQ\/OQ<\/strong> \u2014 CAD dimensional drawings in PDF format, supporting Installation Qualification and Operational Qualification procedures for pharma GMP lines. KF-S4 shrink disc IQ\/OQ documentation package available within 5 working days of order.<\/div>\n<\/div>\n<\/div>\n

KFDA auditors do not certify individual gearbox units \u2014 they audit the facility’s documentation of its equipment suitability. Providing the complete Korea Ever-Power documentation package allows the Korean food facility QA team to satisfy the KFDA audit requirement without commissioning independent testing. Request the documentation package in the order confirmation \u2014 specify “KFDA food zone documentation required” and the Korea Ever-Power application team provides the complete Korean-language package with the shipment.<\/p>\n<\/div>\n

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\"Korea<\/p>\n

\n
H1 vs H2 Food Lubricant Classification<\/div>\n
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H1 \u2014 Incidental food contact permitted:<\/strong> Used when lubricant may incidentally contact food product. Required for food-contact-surface components. Special order at Korea Ever-Power.<\/div>\n
H2 \u2014 No food contact permitted:<\/strong> Standard Korea Ever-Power EP grease. Acceptable for food-proximate area installations where the gearbox is not in direct contact with food product (conveyor drives, agitator housings). Not for lubrication points that may contact food.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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EP-AER vs EP-KF\/KH vs EP-AB \u2014 The Complete Food Processing Selection Matrix<\/h2>\n

These three product families cover the full range of planetary gearbox food processing IP67 requirements in Korean facilities. The primary decision driver is not torque or ratio \u2014 it is the combination of IP rating requirement and operating temperature. Start there, then address shaft connection and noise requirements.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Drive Scenario<\/th>\nBest Series<\/th>\nWhy<\/th>\n<\/tr>\n<\/thead>\n
Wet zone R\/A drive, IP67, temperature may reach 0\u00b0C or below (cold room entry, outdoor Korean winter)<\/td>\nEP-AER IP67<\/a><\/td>\nOnly R\/A series with IP67 AND \u221210\u00b0C rating. KF\/KH excluded (0\u00b0C min).<\/td>\n<\/tr>\n
Indoor wet zone R\/A drive, IP67, temperature reliably >5\u00b0C year-round (indoor tropical or climate-controlled Korean food plant)<\/td>\nEP-AER IP67<\/a><\/td>\nEP-AER remains correct; IP67 is the defining requirement.<\/td>\n<\/tr>\n
Indoor low-noise drive, temp reliably >5\u00b0C, hollow shaft \/ shrink disc preferred, IP65 sufficient<\/td>\nEP-KF-S3\/S4<\/a><\/td>\nLowest noise + hollow shaft options. 0\u00b0C min \u2014 confirm indoor temperature control.<\/td>\n<\/tr>\n
GMP pharma clean room, keyway-free shaft, wipe-down cleaning only, indoor 15\u201325\u00b0C<\/td>\nEP-KF-S4<\/a><\/td>\nShrink disc = no keyway slot. KFDA audit accepted. 0\u00b0C min \u2713 at indoor 15\u00b0C.<\/td>\n<\/tr>\n
Dry packaging zone, no CIP, IP65, any Korean temperature including outdoor dock<\/td>\nEP-BAB<\/a> \/ EP-AB<\/td>\nNo IP67 needed; \u221210\u00b0C covers all Korean outdoor conditions. Best cost.<\/td>\n<\/tr>\n
Food agitator, high ratio (150\u2013500:1), low cost, motor cabinet dry zone<\/td>\nPG II R 3-stage<\/a><\/td>\n3-stage economic line reaches 500:1 economically. Gearbox in dry zone \u2014 IP65 sufficient.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n

<\/p>\n

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Frequently Asked Questions \u2014 Planetary Gearboxes in Korean Food Processing<\/h2>\n
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Q<\/span>Can an existing IP65 EP-AER be retrofitted to IP67 in the field?<\/h3>\n

No. IP67 requires a different housing seal geometry \u2014 tighter flatness tolerances on mating faces, O-ring grooves designed for static immersion pressure rather than jet resistance, and a different output shaft seal specification. These are manufacturing differences, not seal replacements. A field seal replacement on an IP65 housing will not produce IP67 performance regardless of the replacement seal quality. IP67 must be ordered as a factory option when the unit is manufactured. If IP67 is required for an installed IP65 unit, the entire gearbox must be replaced with an IP67-rated unit. This is why confirming the CIP exposure level at specification time \u2014 before ordering \u2014 is critical.<\/p>\n<\/div>\n

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Q<\/span>What HACCP documentation does Korea Ever-Power provide for food zone gearbox installations?<\/h3>\n

Korea Ever-Power provides the following documentation package for food zone EP-AER and EP-AE IP67 orders, in Korean language: (1) IEC 60529 IP67 test certificate, (2) housing and shaft material declaration with RoHS compliance statement, (3) grease specification confirming H2 food-proximate classification, (4) dimensional drawings in PDF for IQ\/OQ documentation. For EP-KF-S4 shrink disc orders, an additional IQ\/OQ installation qualification procedure document is provided within 5 working days of order. Food-contact-surface H1 lubricant requires a special order specification \u2014 request at time of ordering if H1 is required for your facility’s HACCP plan.<\/p>\n<\/div>\n

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Q<\/span>Does the standard Korea Ever-Power grease require food-grade specification for wet-zone installations?<\/h3>\n

Standard Korea Ever-Power EP grease is classified H2 \u2014 acceptable for food-proximate area use where incidental food contact is not anticipated. H2 is the correct classification for externally mounted gearboxes whose sealed housing prevents any grease from contacting the food product stream \u2014 this covers all EP-AER, EP-AE, and KF\/KH units mounted outside the product contact zone. H1 (food-contact-surface lubricant, safe if incidental food contact occurs) is required only when a credible failure mode exists where grease could contact food \u2014 for example, a direct-drive agitator shaft seal failure that allows grease to enter the product vessel. Request H1 lubricant at order time if your HACCP plan requires it; the grease specification is set at manufacture and cannot be changed after delivery.<\/p>\n<\/div>\n

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Q<\/span>Does a vertical food agitator shaft need protection against back-driving when the motor is stopped?<\/h3>\n

It depends on the product viscosity and the impeller design. For low-viscosity liquids (water-based sauces, broths, dairy), the hydrostatic pressure on the impeller at rest is insufficient to back-drive a planetary gearbox against the motor’s own cogging torque and servo brake \u2014 no additional holding device is required. For high-viscosity products (thick doughs, dense pastes, gels) where the static product pressure on the impeller can generate significant shaft torque, a planetary gearbox alone may allow slow impeller creep when stopped. In this case, a servo motor electromagnetic brake or a downstream worm stage provides the holding torque. A planetary gearbox is not self-locking \u2014 it will back-drive freely if the back-drive torque exceeds the motor holding torque. Assess the maximum static product pressure on the impeller against the motor’s holding torque to determine whether additional holding is needed.<\/p>\n<\/div>\n

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Q<\/span>For post-harvest Korean agricultural processing where EP gearboxes distribute to multiple processing heads, which configuration applies?<\/h3>\n

For indoor Korean post-harvest grain and produce processing facilities where an EP-KF or EP-AE provides the primary speed reduction and power distribution to multiple processing heads is needed, jordbrukskoniska v\u00e4xell\u00e5dor<\/a> distribute power from the EP planetary output to individual cleaning, sorting, or packaging heads. The EP unit handles the motor-to-process speed reduction, and the downstream agricultural bevel gearboxes provide the multi-output distribution. In this configuration, confirm the EP unit temperature specification matches the facility zone \u2014 indoor grain facilities typically operate above 5\u00b0C year-round, making EP-KF appropriate for noise-sensitive indoor post-harvest processing.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Specify Your Food Processing Gearbox with Korea Ever-Power<\/h2>\n

Korea Ever-Power provides zone IP confirmation, washdown pressure verification, temperature specification verification, KFDA documentation package, KF-S4 IQ\/OQ documentation, and Korean-language delivery certificates for all food zone gearbox orders \u2014 same working day application support.<\/p>\n

EP-AER IP67 Right-Angle \u2192
\n<\/a>
\nEP-KF\/KH Low-Noise Hypoid \u2192
\n<\/a><\/div>\n<\/section>\n

Redakt\u00f6r: Cxm
\n<\/main><\/p>","protected":false},"excerpt":{"rendered":"

Food & Beverage Processing \u00b7 Zone-by-Zone Guide \u00b7 IP67 \u00b7 CIP \u00b7 GMP Planetary Gearbox for Food Processing \u2014 IP67, Washdown, and Hygienic Design Selecting the right planetary gearbox food processing IP67 configuration determines whether your line survives the next KFDA audit or fails at the most vulnerable seal surface. Korean food production lines face […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[965],"tags":[],"class_list":["post-655","post","type-post","status-publish","format-standard","hentry","category-application-and-technical-guid"],"_links":{"self":[{"href":"https:\/\/planetary-gearboxes.com\/sv\/wp-json\/wp\/v2\/posts\/655","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sv\/wp-json\/wp\/v2\/comments?post=655"}],"version-history":[{"count":2,"href":"https:\/\/planetary-gearboxes.com\/sv\/wp-json\/wp\/v2\/posts\/655\/revisions"}],"predecessor-version":[{"id":657,"href":"https:\/\/planetary-gearboxes.com\/sv\/wp-json\/wp\/v2\/posts\/655\/revisions\/657"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/sv\/wp-json\/wp\/v2\/media?parent=655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sv\/wp-json\/wp\/v2\/categories?post=655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sv\/wp-json\/wp\/v2\/tags?post=655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}