설명
WPEKA Double Speed Cast Iron Worm Reducer — Product Overview
Single-stage worm reducers achieve ratios up to 1/60. When applications demand 1/200, 1/500, or 1/900 — solar trackers, valve actuators, slow-speed conveyors, and positioning drives — a second worm stage is the engineering answer. The WPEKA places two matched worm stages in tandem in a single cast iron housing, delivering ratios from 1/200 to over 1/900 in one compact, foot-mount unit with no intermediate shafting, no external coupling between stages, and no additional mounting frame.
The WPEKA combines the two-stage extreme ratio capability with the zero-coupling hollow bore output. The driven shaft in… The dual-stage architecture uses matched tin-bronze worm wheels and 20CrMnTi worm shafts at both stages, providing consistent mesh quality and noise performance across the full ultra-high ratio range.
WPEKA Double Speed Worm Reducer Specifications
| 매개변수 | 사양 |
|---|---|
| 시리즈 | Double Speed WPE+K |
| 주택 | 견고한 일체형 주철, 2단식 |
| 입력 | Solid shaft — below (A-type) |
| 산출 | Hollow bore — K-type through-hole |
| 비율 범위 | 1/200–1/900+ |
| 크기 조합 | 40~70mm ~ 155~250mm |
| 설치 | Foot-mount or shaft-mount with torque arm |
| 주택 자재 | FC20+ 회주철, 이중 챔버 |
| 웜 휠 | 정합 쌍 주석-청동 ZCuSn10Pb1, 두 단계 모두 |
| 웜 샤프트 | 20CrMnTi 표면 경화 처리, 55–60 HRC, 두 단계 모두 |
| 매끄럽게 하기 | N220–N320 (−30°C–40°C); N320–N460 (40°C–65°C), 두 챔버 모두 |
| 최대 오일 온도 | 95°C 연속 |
| 무게 범위 | 20–462 kg |
| 주요 특징 | Double-stage + K hollow bore — ultra-high ratio shaft-mount drive, no output coupling |
크기 조합 및 성능 데이터
| 사이즈 콤보 | 비율 | 입력(kW) | 출력 토크(Nm) | (mm) | AA (mm) | AB (mm) | BB(mm) | 무게(kg) |
|---|---|---|---|---|---|---|---|---|
| 40~70세 | 1/200 | 0.48 | 250 | 286 | 195 | 153 | 131 | 20 |
| 50~80세 | 1/300 | 0.65 | 350 | 297 | 197 | 144 | 142 | 27 |
| 60~100 | 1/400 | 0.95 | 500 | 363 | 231 | 175 | 169 | 44 |
| 70~120 | 1/500 | 1.64 | 840 | 408 | 256 | 193 | 190 | 73 |
| 80~135세 | 1/600 | 2.5 | 1,400 | 471 | 298 | 226 | 210 | 101 |
| 100~155 | 1/800 | 3.69 | 2,100 | 555 | 354 | 269 | 252 | 144 |
| 120~175 | 1/900 | 5.09 | 3,050 | 568 | 379 | 287 | 255 | 201 |
| 135~200 | 1/900+ | 7.22 | 3,950 | 662 | 425 | 318 | 319 | 293 |
| 155~250 | 1/900+ | 11.71 | 6,050 | 795 | 510 | 380 | 385 | 462 |
WPEKA Double Speed Worm Reducer — Core Features
■ K-Type Hollow Bore — Direct Shaft Mount at Ultra-High Ratio
The WPEKA combines the two-stage extreme ratio capability with the zero-coupling hollow bore output. The driven shaft inserts directly into the K-bore — no output coupling required even at 1/900+ ratios with 6,050 Nm output torque.
■ Shaft-Mount Configuration Available — Torque Arm Restraint
The hollow bore enables shaft-mounting the WPEKA directly onto the driven equipment shaft with a torque arm reaction bracket — the same installation method as the WPKA, but with access to ratios up to 1/900+.
■ Same 6,050 Nm Output Torque as WPEA — K-Bore Does Not Reduce Capacity
The K-type hollow bore substitution does not change the worm gear internals or torque ratings. WPEKA size 155–250 delivers identical 6,050 Nm to the WPEA at the same ratio.
■ Two-Stage Precision — Matched Worm Wheel Pairs Both Stages
Both worm wheel stages use precision-matched ZCuSn10Pb1 tin-bronze pairs, providing consistent inter-stage mesh quality. The dual-stage reduction noise level remains within the 68 dB(A) rated load limit.
■ Bilateral A-Type Input — Standard Motor Coupling
A-type solid input shaft accepts motor connections from either side via standard couplings. No motor adaptor required — WPEKA uses the same motor hardware as a standard WPA.
■ Foot-Mount or Shaft-Mount — Two Installation Modes
The WPEKA foot-mount base and torque arm boss are both present in the same housing. Use foot-mount for frame-mounted installation or shaft-mount directly onto the driven shaft — no modification required.
WPEKA Worm Reducer — Industry Applications
☀ Solar Tracker Shaft-Mount Drives
WPEKA shaft-mount configuration simplifies solar tracker structural design — the dual-stage reducer mounts directly on the tracker rotation shaft without a separate mounting frame, eliminating the frame and coupling between reducer and shaft.
⚙ Slow-Speed Conveyor Head Shaft Drives
For slow-speed conveyors with a keyed head shaft, WPEKA provides ultra-high ratio reduction plus direct shaft mounting — achieving output speeds below 5 rpm from a standard motor without VFD controls or external coupling hardware.
⚒ Large Valve Actuator Shaft Drives
WPEKA K-bore mounts directly on valve stem shafts for large valve actuator applications requiring ratios above 1/200. No coupling at the valve stem eliminates the external hardware most vulnerable to corrosion in outdoor installations.
⚊ Turntable & Indexing Platform Drives
The WPEKA hollow bore accommodates the central pivot shaft of large turntable and indexing platform drives, where extreme ratio reduction from a standard motor and direct shaft connection both simplify the mechanism.
Ever Power Manufacturing Quality — WPE Double Speed Worm Reducer
■ ISO 9001:2000 Certified — Dual-Stage Assembly
Every WPE double speed unit undergoes ISO 9001:2000 quality management at both worm stage assembly levels. Inter-stage alignment and combined ratio accuracy are verified before final assembly.
■ CE 마크 — EU 기계류 지침 2006/42/EC
Full CE compliance for mechanical power transmission equipment supports export to EU, UK, Australian, and New Zealand markets without re-certification.
■ 출하 전 테스트: 소음, 누출, 토크
Noise below 68 dB(A) at rated load, 30-minute pressurisation leak test on both gear chambers, and output torque within ±5% of rated. Non-conforming units reworked before shipment.
■ FC20+ Material Certification — Both Housings
Both the primary and secondary worm housings are verified by FC20 mill certificates: minimum 220 MPa tensile strength, 160–200 HB hardness. Ultrasonic defect testing on size combinations 135–200 and above.
WPEKA Double Speed Worm Reducer — Customer Reviews
“WPEKA on our solar tracker rotation shafts. Dual-stage reducer mounts directly on the tracker shaft — no separate frame, no coupling. 1/600 ratio from a standard motor. Clean, elegant installation.”
“Used WPEKA on our slow-speed cooling conveyor head shaft drives. Hollow bore on the head shaft, dual-stage for 1/500 ratio — belt speed exactly as required without VFD. Straightforward to install.”
“WPEKA shaft-mount on large valve actuator stems. No coupling at the valve stem level — eliminates the corrosion-prone hardware that was failing in our outdoor installation. Zero failures since changeover.”
“Good ultra-high ratio hollow bore unit. WPEKA-80–135 on our turntable drives. Direct shaft mount, 1/600 ratio, correct torque. Would appreciate a backlash specification for precision positioning assessment.”
