{"id":596,"date":"2026-05-29T02:53:48","date_gmt":"2026-05-29T02:53:48","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?post_type=product&p=596"},"modified":"2026-05-29T02:53:48","modified_gmt":"2026-05-29T02:53:48","slug":"ep-afhk-right-angle-multi-stage-heavy-duty-planetary-gearbox","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.com\/ru\/product\/ep-afhk-right-angle-multi-stage-heavy-duty-planetary-gearbox\/","title":{"rendered":"EP-AFHK Series Right-Angle Multi-Stage Heavy-Duty Planetary Gearbox"},"content":{"rendered":"

<\/main><\/p>\n
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EP-AFHK Series \u2014 Right-Angle Multi-Stage Heavy-Duty Planetary Gearbox Family<\/h2>\n
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\"EP-AFHK<\/p>\n

\n
\n
10,000:1
\nMax Ratio<\/div>\n
4-stage configuration<\/div>\n<\/div>\n
\n
3,800
\nN\u00b7m<\/div>\n
Max output torque<\/div>\n<\/div>\n
\n
\u22642′<\/div>\n
Backlash (arcmin)<\/div>\n<\/div>\n
\n
2\/3\/4
\n\u042d\u0442\u0430\u043f\u044b<\/div>\n
Four configurations<\/div>\n<\/div>\n<\/div>\n

\n\u2190 Browse All Planetary Gearbox Series
\n<\/a><\/div>\n<\/div>\n
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The EP-AFHK series right-angle multi-stage heavy-duty planetary gearbox<\/strong> extends the Korea Ever-Power right-angle precision range beyond the two-stage maximum of the EP-AFR series<\/a> into configurations that deliver both high output torque up to 3,800 N\u00b7m<\/strong> \u0438 extreme reduction ratios up to 10,000:1<\/strong> at a 90-degree output direction. Where EP-AFR covers two-stage inline-plus-bevel combinations up to i=200, EP-AFHK is the product specified when the torque, ratio, or both exceed what a single bevel-stage right-angle unit can achieve.<\/p>\n

The series comprises four configurations: AFHK two-stage<\/strong> for moderate ratios up to 100:1, AFHKA three-stage<\/strong> for high-torque outputs above 1,650 N\u00b7m up to 1,000:1, AFHKB three-stage<\/strong> for the widest torque range (55\u20133,345 N\u00b7m) at the same 1,000:1 maximum, and AFHK four-stage<\/strong> for extreme ratios to 10,000:1 in the 1,975\u20133,800 N\u00b7m torque class. All configurations share the seven frame sizes AFHK060 through AFHK240, a standard backlash of \u22642 arcmin, and the high-rigidity enlarged output shaft for direct-mounted radial loads.<\/p>\n

\n
\n
\ud83d\udd04 Four Configs<\/div>\n
2\/3\/3\/4-stage for every torque-ratio combination.<\/div>\n<\/div>\n
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\u26a1 Hi Radial Shaft<\/div>\n
Same enlarged-shaft design as EP-AFH\/EP-AFR.<\/div>\n<\/div>\n
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\ud83c\udfaf \u22642′ Fixed<\/div>\n
No P0\/P1\/P2. Standard \u22642 arcmin across all stages.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Four Configurations \u2014 Selecting the Right Stage Count for Torque and Ratio<\/h2>\n

The EP-AFHK family offers four multi-stage configurations, each targeting a specific intersection of output torque and reduction ratio. The selection is straightforward: determine the required output torque and the required output reduction ratio, then identify which configuration covers both simultaneously.<\/p>\n

<\/p>\n

\n
\n
\n
AFHK 2-Stage<\/div>\n<\/div>\n
\n
\n
Torque<\/div>\n
24 \u2013 3,340 N\u00b7m<\/div>\n<\/div>\n
\n
Max Ratio<\/div>\n
100:1<\/div>\n<\/div>\n
\n
\u041e\u0431\u0440\u0430\u0442\u043d\u0430\u044f \u0440\u0435\u0430\u043a\u0446\u0438\u044f<\/div>\n
\u22642′ (\u22643′ for AFHK060)<\/div>\n<\/div>\n
\n
\u042d\u0442\u0430\u043f\u044b<\/div>\n
Two planetary + bevel<\/div>\n<\/div>\n<\/div>\n

Best for:<\/strong> Heavy right-angle drives where ratio \u2264100:1 is sufficient \u2014 heavy rotary tables, large conveyor head drives, and industrial positioners requiring high torque at moderate reduction ratios from a perpendicular motor arrangement.<\/p>\n<\/div>\n

\n
\n
AFHKA 3-Stage<\/div>\n<\/div>\n
\n
\n
Torque<\/div>\n
1,650 \u2013 3,800 N\u00b7m<\/div>\n<\/div>\n
\n
Max Ratio<\/div>\n
1,000:1<\/div>\n<\/div>\n
\n
\u041e\u0431\u0440\u0430\u0442\u043d\u0430\u044f \u0440\u0435\u0430\u043a\u0446\u0438\u044f<\/div>\n
\u22642 arcmin (3-stage)<\/div>\n<\/div>\n
\n
\u042d\u0442\u0430\u043f\u044b<\/div>\n
Three stages + bevel<\/div>\n<\/div>\n<\/div>\n

Best for:<\/strong> Very high-torque right-angle applications at high reduction ratios \u2014 heavy crane slewing drives, large industrial turntable drives, and port equipment where both maximum torque and high ratio are simultaneously specified and the motor must be perpendicular to the output axis.<\/p>\n<\/div>\n

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\n
AFHKB 3-Stage<\/div>\n<\/div>\n
\n
\n
Torque<\/div>\n
55 \u2013 3,345 N\u00b7m<\/div>\n<\/div>\n
\n
Max Ratio<\/div>\n
1,000:1<\/div>\n<\/div>\n
\n
\u041e\u0431\u0440\u0430\u0442\u043d\u0430\u044f \u0440\u0435\u0430\u043a\u0446\u0438\u044f<\/div>\n
\u22642 arcmin (3-stage)<\/div>\n<\/div>\n
\n
\u042d\u0442\u0430\u043f\u044b<\/div>\n
Three stages + bevel<\/div>\n<\/div>\n<\/div>\n

Best for:<\/strong> Wide torque range three-stage applications where the lower torque end (55 N\u00b7m) is relevant \u2014 machine families spanning from light to heavy configurations using the same gearbox series. AFHKB starts at a much lower minimum torque than AFHKA, making it suitable for medium-torque machines that also need ratios above 100:1.<\/p>\n<\/div>\n

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AFHK 4-Stage<\/div>\n<\/div>\n
\n
\n
Torque<\/div>\n
1,975 \u2013 3,800 N\u00b7m<\/div>\n<\/div>\n
\n
Max Ratio<\/div>\n
10,000:1<\/div>\n<\/div>\n
\n
\u041e\u0431\u0440\u0430\u0442\u043d\u0430\u044f \u0440\u0435\u0430\u043a\u0446\u0438\u044f<\/div>\n
\u22642 arcmin (4-stage)<\/div>\n<\/div>\n
\n
\u042d\u0442\u0430\u043f\u044b<\/div>\n
Four stages + bevel<\/div>\n<\/div>\n<\/div>\n

Best for:<\/strong> Extreme-ratio right-angle drives \u2014 solar tracker orientation drives, large antenna positioning systems, crane slewing mechanisms requiring very slow rotation at high torque from a standard servo or induction motor, and any application where 10,000:1 reduction in a single right-angle sealed unit replaces a gearbox-plus-chain-reducer compound system.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Configuration Selection Guide<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
If your application requires\u2026<\/th>\n\u2192 Specify<\/th>\n<\/tr>\n<\/thead>\n
Right-angle, 24\u20133,340 N\u00b7m, ratio up to 100:1<\/td>\nAFHK 2-stage<\/td>\n<\/tr>\n
Right-angle, 1,650\u20133,800 N\u00b7m, ratio up to 1,000:1<\/td>\nAFHKA 3-stage<\/td>\n<\/tr>\n
Right-angle, 55\u20133,345 N\u00b7m, ratio up to 1,000:1 (wider low end)<\/td>\nAFHKB 3-stage<\/td>\n<\/tr>\n
Right-angle, 1,975\u20133,800 N\u00b7m, ratio up to 10,000:1<\/strong><\/td>\nAFHK 4-stage<\/td>\n<\/tr>\n
Right-angle, up to 2,000 N\u00b7m, ratio up to 200:1, P0\/P1\/P2 precision needed<\/td>\nEP-AFR series<\/a> (not AFHK)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\u25b8 No P0\/P1\/P2 in EP-AFHK: <\/span>
\nThe backlash specification of all EP-AFHK configurations is fixed at \u22642 arcmin (\u22643 arcmin for AFHK060 two-stage only). There is no P0\/P1\/P2 grade selection in this series. If sub-2 arcmin precision is required at a right-angle output, use EP-AFR (which offers P0 \u22641 arcmin) at up to 2,000 N\u00b7m and up to i=200. EP-AFHK is the specification when heavy torque and extreme ratio are the primary requirements, with \u22642 arcmin precision as the standard output.<\/span><\/div>\n<\/section>\n

<\/p>\n

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EP-AFHK Family \u2014 Complete Specifications<\/h2>\n
\n\n\n\n\n\n\n\n\n
Configuration<\/th>\n\u042d\u0442\u0430\u043f\u044b<\/th>\nOutput Torque<\/th>\nMax Ratio<\/th>\n\u041e\u0431\u0440\u0430\u0442\u043d\u0430\u044f \u0440\u0435\u0430\u043a\u0446\u0438\u044f<\/th>\n<\/tr>\n<\/thead>\n
AFHK Two-Stage<\/td>\n2<\/td>\n24 \u2013 3,340 N\u00b7m<\/td>\n100:1<\/td>\n\u22642′ (\u22643′ AFHK060)<\/span><\/td>\n<\/tr>\n
AFHKA Three-Stage<\/td>\n3<\/td>\n1,650 \u2013 3,800 N\u00b7m<\/td>\n1,000:1<\/td>\n\u22642 arcmin<\/td>\n<\/tr>\n
AFHKB Three-Stage<\/td>\n3<\/td>\n55 \u2013 3,345 N\u00b7m<\/td>\n1,000:1<\/td>\n\u22642 arcmin<\/td>\n<\/tr>\n
AFHK Four-Stage<\/td>\n4<\/td>\n1,975 \u2013 3,800 N\u00b7m<\/td>\n10,000:1<\/td>\n\u22642 arcmin<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

Common Specifications \u2014 All EP-AFHK Configurations<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Output Direction<\/td>\n90\u00b0 right-angle to motor input axis<\/td>\n<\/tr>\n
Output Shaft<\/td>\nHigh-rigidity enlarged diameter \u2014 for direct radial-load mounting<\/td>\n<\/tr>\n
Backlash grade codes<\/td>\nNone \u2014 fixed \u22642 arcmin (\u22643 arcmin AFHK060 two-stage only). No P0\/P1\/P2.<\/td>\n<\/tr>\n
\u0420\u0430\u0431\u043e\u0447\u0430\u044f \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0430<\/td>\n\u221210 \u00b0C to +90 \u00b0C<\/td>\n<\/tr>\n
IP Rating<\/td>\nIP65 standard<\/td>\n<\/tr>\n
\u0421\u043c\u0430\u0437\u043a\u0430<\/td>\nSealed grease \u2014 maintenance-free<\/td>\n<\/tr>\n
Frame Sizes<\/td>\nAFHK060 \/ AFHK075 \/ AFHK100 \/ AFHK140 \/ AFHK180 \/ AFHK210 \/ AFHK240<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\u25b8 AFHK060 two-stage note: <\/span>
\nThe smallest frame, AFHK060, carries a slightly wider two-stage backlash specification of \u22643 arcmin, consistent with the pattern seen across Korea Ever-Power series at the 60 mm body diameter \u2014 where gear train geometry at this scale constrains achievable backlash. All frames AFHK075 through AFHK240 deliver the standard \u22642 arcmin specification.<\/span><\/div>\n<\/section>\n

<\/p>\n

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Model Designation Guide \u2014 EP-AFHK Series<\/h2>\n
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EP-AFHK 140 \/ S2 \u2190 2-stage<\/div>\n
EP-AFHKA 140 \/ S2 \u2190 3-stage high-torque start<\/div>\n
EP-AFHKB 140 \/ S2 \u2190 3-stage wide torque range<\/div>\n
EP-AFHK 140 \/ S2 \/ 4-stage \u2190 4-stage extreme ratio<\/div>\n
\n
\n
EP-AFHK\/A\/B<\/div>\n
Right-angle multi-stage heavy-duty
\nK = standard, KA = 3-stage high-T
\nKB = 3-stage wide range<\/div>\n<\/div>\n
\n
140<\/div>\n
Body diameter 140 mm
\nSame scale as EP-AFH\/AFR<\/div>\n<\/div>\n
\n
S2<\/div>\n
S1: smooth shaft
\nS2: with keyway<\/div>\n<\/div>\n
\n
[no grade]<\/div>\n
No P0\/P1\/P2
\nFixed \u22642 arcmin
\n(\u22643′ for AFHK060 only)<\/div>\n<\/div>\n<\/div>\n<\/div>\n

When specifying EP-AFHK, provide the required output torque, required maximum reduction ratio, and frame size to Korea Ever-Power. The application engineering team will confirm the correct configuration (2-stage, 3-stage AFHKA\/AFHKB, or 4-stage), the available ratio combinations within that configuration, and the specific frame size recommendation for your torque and space requirements.<\/p>\n<\/section>\n

<\/p>\n

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Applications \u2014 Heavy-Duty Right-Angle Multi-Stage Drives in Korean Industry<\/h2>\n
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Solar and CPV Tracker Azimuth Drives \u2014 AFHK 4-Stage at 10,000:1<\/h3>\n

Utility-scale solar tracking systems \u2014 concentrated photovoltaic (CPV) and dual-axis heliostat arrays \u2014 require azimuth drives that rotate very slowly (sub-0.1 rpm) with high torque to overcome wind loading, from a motor positioned perpendicular to the tracker azimuth axis. EP-AFHK 4-stage at 10,000:1 achieves this from a standard servo motor without additional gearbox stages or chain reduction, in a single sealed right-angle unit. The \u22642 arcmin right-angle output backlash maintains optical concentration accuracy. Korean and Southeast Asian solar energy installations use EP-AFHK140 and AFHK180 four-stage for arrays above 1 MWp. Pairs with precision CV drive shafts for tracker arrays where the AFHK output drives multiple rows through a common shaft.<\/p>\n<\/div>\n

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Heavy Industrial Crane Slewing \u2014 AFHKA 3-Stage<\/h3>\n

Korean shipyard and heavy industry overhead cranes require slewing mechanism drives that carry the full crane rotation torque at 90 degrees from the drive motor \u2014 the motor positioned vertically inside the crane carriage structure, the slewing output driving horizontally through the slewing ring. AFHKA three-stage at 1,650\u20133,800 N\u00b7m covers the torque demands of crane slewing at reduction ratios up to 1,000:1, delivering slow precise rotation speed from a standard servo input while the high-rigidity enlarged shaft handles the slewing ring contact forces.<\/p>\n<\/div>\n

\n

Steel Plant Heavy Conveyor Head \u2014 AFHK 2-Stage<\/h3>\n

Korean steel service centre blast furnace burden conveyor head drives require right-angle drives at very high torques \u2014 the head sprocket must be driven at 90 degrees from the motor which is positioned across the conveyor width. AFHK two-stage at 24\u20133,340 N\u00b7m handles conveyor head torques up to 100:1 reduction with the enlarged shaft carrying the conveyor chain sprocket radial force directly. EP-AFHK180 and AFHK210 two-stage cover the torque range of Korean blast furnace and continuous casting conveyor head drives.<\/p>\n<\/div>\n

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Port Equipment and Marine Slewing \u2014 Multi-Stage at High Torque<\/h3>\n

Korean port container crane slewing, harbour pilot boat davit drives, and offshore handling equipment require right-angle drives in the 1,000\u20133,800 N\u00b7m output range with reduction ratios above what a two-stage unit provides. AFHKB three-stage covers the 55\u20133,345 N\u00b7m range at up to 1,000:1 \u2014 bridging the gap between AFHK two-stage (up to 100:1) and AFHK four-stage (which requires 1,975 N\u00b7m minimum) for port equipment that specifies moderate-to-high torques with high ratios. Self-locking gravity holding via worm gear reducers for vertical port equipment axes.<\/p>\n<\/div>\n

\n

Large Agricultural Machinery \u2014 AFHKB 3-Stage<\/h3>\n

Korean large-scale agricultural machinery \u2014 combine harvester main drive transmission, sugarcane harvester head drives, and precision tillage equipment \u2014 requires right-angle drives where the main power input shaft must turn a corner to reach the working head. AFHKB three-stage covers the wide 55\u20133,345 N\u00b7m range relevant to different machine sizes within a product family, with up to 1,000:1 reduction from a high-speed motor input to a slow-turning working head. Integration with agricultural bevel gearboxes for multi-output power distribution from the AFHKB right-angle output shaft.<\/p>\n<\/div>\n

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Large Precision Rotary Tables \u2014 AFHK 2-Stage Heavy<\/h3>\n

Korean heavy industrial rotary tables for large steel and aluminium fabrication \u2014 2 m diameter tables carrying 5,000 kg workpieces \u2014 require right-angle side-entry drives at torques above the EP-AFH inline capacity. AFHK two-stage at up to 3,340 N\u00b7m with 90-degree output and \u22642 arcmin backlash drives large tables from a motor positioned beside the table column, with the enlarged shaft carrying the table rim gear mesh force as a radial load. EP-AFHK240 two-stage covers the top torque requirement for Korean heavy industrial table side-entry drives.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Quality Certifications & Testing Standards<\/h2>\n
\n
\n
\n
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ISO 9001<\/div>\n
Quality Management<\/div>\n<\/div>\n
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CE<\/div>\n
EU Machinery Directive<\/div>\n<\/div>\n
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KS<\/div>\n
Korean Industrial Standard<\/div>\n<\/div>\n
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RoHS<\/div>\n
Hazardous Substance Free<\/div>\n<\/div>\n<\/div>\n