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WPWEK Double Speed Cast Iron Worm Reducer — Product Overview
The WPWEK extends the WPWE universal body concept to hollow bore output — adding the K-type coupling-free shaft insertion capability to the universal shaft direction platform at extreme ratios. Applications requiring shaft-mount installation in any of the WPW shaft direction configurations at ratios above 1/60 use WPWEK as the single universal hollow bore extreme-ratio drive.
WPWEK Double Speed Worm Reducer Specifications
| Parameter | Specification |
|---|---|
| Series | Double Speed WPWE+K |
| Housing | Solid integral cast iron, dual-stage, WPW universal body |
| Input | Solid shaft — bilateral, multiple WPW directions |
| Output | Hollow bore — K-type through-hole |
| Ratio Range | 1/200–1/900+ |
| Size Combinations | 40–70 to 155–250 mm |
| Mounting | Foot-mount or shaft-mount with torque arm, WPW universal body |
| Housing Material | FC20+ grey cast iron, dual-chamber |
| Worm Wheels | Matched pair tin-bronze ZCuSn10Pb1, both stages |
| Worm Shafts | 20CrMnTi case-hardened 55–60 HRC, both stages |
| Lubrication | N220–N320 (−30°C–40°C); N320–N460 (40°C–65°C), both chambers |
| Max Oil Temp | 95°C continuous |
| Weight Range | 17–442 kg |
| Key Feature | WPW universal body + K hollow bore + double-stage — universal shaft-mount extreme ratio platform |
Size Combination & Performance Data
| Size Combo | Ratio | Input (kW) | Output Torque (Nm) | A (mm) | AA (mm) | AB (mm) | BB (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 40–70 | 1/200 | 0.48 | 250 | 286 | 195 | 153 | 131 | 20 |
| 50–80 | 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 |
| 80–135 | 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 |
WPWEK Double Speed Worm Reducer — Core Features
■ WPW Universal Body + K Hollow Bore + Double Stage — Universal Shaft-Mount Extreme Ratio
The WPWEK provides the universal shaft direction flexibility of the WPW body combined with K-type hollow bore output and dual-stage extreme ratio reduction. Any WPW shaft input direction, coupling-free shaft insertion at the output, ratios from 1/200 to 1/900+.
■ K Hollow Bore — Direct Shaft Connection at 6,050 Nm Maximum
The driven shaft inserts directly into the K-type hollow bore even at maximum output torques of 6,050 Nm (size 155–250). No output coupling at any torque or ratio level.
■ Universal WPW Body — Multiple Shaft Directions
WPW shaft direction flexibility extends to the K-bore output configuration — universal shaft-mount capability in all WPW input direction configurations.
■ Shaft-Mount Capable — Torque Arm Available
The torque arm boss enables shaft-mounting the WPWEK directly on the driven equipment shaft. Universal WPW body configurations remain available in shaft-mount mode.
■ Dual Independent Oil Chambers — Both Stages
Two independently sealed chambers for both gear stages. Oil volumes specified per WPW shaft direction in the lubrication table.
■ FC20+ Dual-Chamber Universal Housing — Rigid Shaft Alignment
Single-cast FC20+ grey cast iron dual-chamber universal housing maintains inter-stage and output bore alignment across all WPW shaft direction configurations.
WPWEK Worm Reducer — Industry Applications
☀ Universal Solar Tracker Shaft-Mount Drives
WPWEK universal body accommodates multiple tracker shaft direction configurations in a single product model — K-bore shaft-mount at extreme ratios, any WPW input direction for the specific tracker geometry.
⚙ Multi-Orientation Shaft-Mount Conveyor Drives
Conveyor systems with head shafts in multiple orientations use WPWEK universal body hollow bore drive — one product model, all shaft directions, extreme ratios, direct shaft insertion.
⚒ Universal Valve Actuator Shaft-Mount Platform
Electric valve actuator systems with valve stems in multiple installation directions use WPWEK as the universal K-bore extreme ratio platform — one product covers all valve orientation requirements.
⚊ OEM Universal Hollow Bore Drive Platform
OEM machine builders with hollow bore shaft-mount requirements in multiple shaft directions standardise on WPWEK — universal body, extreme ratio, coupling-free shaft connection across all drive positions.
Ever Power Manufacturing Quality — WPWEK Worm Reducer
■ ISO 9001:2000 — Dual-Stage Assembly Certified
Both worm stage assemblies are manufactured and tested under ISO 9001:2000. Inter-stage alignment and ratio accuracy are verified before final assembly of every unit.
■ CE Marking — EU Machinery Directive 2006/42/EC
Full CE compliance for export to EU, UK, Australian, and New Zealand markets without re-certification.
■ Pre-Shipment Testing: Noise, Leak, Torque
Noise below 68 dB(A) at rated load, 30-minute pressurisation of both gear chambers, and output torque within ±5% of rated. Non-conforming units reworked before shipment.
■ FC20+ Material Certification
Both housings carry FC20 mill certificates: 220 MPa minimum tensile strength, 160–200 HB hardness. Ultrasonic testing on size combinations 135–200 and above.
WPWEK Double Speed Worm Reducer — Customer Reviews
“WPWEK universal shaft-mount on our solar tracker rotation shafts. WPW body covers two different tracker shaft directions in our installation — K-bore directly on the shaft, 1/600 ratio, one product model for all tracker types.”
“Used WPWEK on multi-orientation conveyor head shaft drives. Universal WPW body, K-bore shaft mount, double-stage for 1/500 ratio. One spare part covers all conveyor orientations. Significant inventory simplification.”
“WPWEK on our valve actuator shaft drives in multiple orientations. Universal body, K-bore on valve stem, extreme ratio — one product for all valve orientations in the plant.”
“Good universal hollow bore double-stage unit. WPWEK-70–120 covering multiple shaft directions on our OEM machine. All features working as specified. Would appreciate a comprehensive shaft direction guide.”
Frequently Asked Questions — WPWEK Double Speed Worm Reducer
Get Your WPWEK Quote Today
Tell Ever Power your application requirements — torque, ratio, mounting, and shaft dimensions. Engineering response within 24 hours. OEM specifications, bulk pricing, and global shipping available.
