Description
WPWE Double Speed Cast Iron Worm Gearbox
The standard WPE double-stage range delivers excellent extreme-ratio performance but requires different variants for different installation orientations. Process engineers designing equipment for multiple machine configurations need a double-stage unit built on the universal W-body platform — one model that works in any orientation. The WPWE Double Speed Cast Iron Worm Gearbox provides exactly this: double-stage worm reduction (1/200–1/900) in a WPW-series universal housing supporting 5 standard shaft direction configurations and all major mounting orientations. The universal double-stage gearbox for process equipment designers who need ratio flexibility and mounting flexibility in a single platform.
Technical Specifications — WPWE

Key Parameters
| Parameter | Specification |
|---|---|
| Series | Double Speed WPWE |
| Housing | Solid integral cast iron, dual-stage, WPW-series universal body |
| Input | Solid shaft (bilateral, 5 shaft directions) |
| Output | Solid shaft (horizontal) |
| Ratio | 1/200–1/900 |
| Size Range | 40–250 combined mm |
| Mounting | Foot-mount, WPW universal body, all orientations |
| 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 | 19–442 kg |
| Key Feature | WPW-series universal body + double-stage — 5 shaft directions, all installation orientations |
Size & 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 | 1400 | 471 | 298 | 226 | 210 | 101 |
| 100–155 | 1/800 | 3.69 | 2100 | 555 | 354 | 269 | 252 | 144 |
| 120–175 | 1/900 | 5.09 | 3050 | 568 | 379 | 287 | 255 | 201 |
| 135–200 | … | 7.22 | 3950 | 662 | 425 | 318 | 319 | 293 |
| 155–250 | … | 11.71 | 6050 | 795 | 510 | 380 | 385 | 462 |
Double-Stage Product Structure

The WPE double-stage housing contains two complete worm gear stages in one precision-machined cast iron body, with two independent oil chambers:
First worm shaft and bronze wheel — receives motor power, produces first reduction. Higher-speed, lower-torque stage optimised for input speed operating conditions.
Connects primary stage output to secondary stage input. Precision-machined, supported by C3-clearance bearings, transmits intermediate torque and speed between the two stages.
Second worm shaft and bronze wheel — lower speed, higher torque. Matched-pair manufacturing with primary stage ensures consistent inter-stage noise and efficiency throughout service life.
Two oil chambers — one per stage — each filled and monitored separately. Independent optimisation of lubrication viscosity and fill level per stage is a key advantage over two-gearbox cascade arrangements.
Two air vents and two oil gauges — one per chamber — provide independent pressure management and oil level monitoring for each stage throughout operation.
Single FC20+ cast iron casting forms both chambers with no gaskets between them. Monolithic rigidity prevents inter-chamber flex that could misalign intermediate shaft bearings.
Core Features & Benefits
■ Universal W-Body + Double-Stage: 5 Shaft Directions in One Product
Built on the WPW-series universal housing platform supporting 5 standard shaft direction configurations (A, B, C, D, E) covering all practical installation orientations, combined with double-stage worm reduction.
■ Identical Ratio Range to WPE Standard — No Compromise
Universal W-body does not restrict ratio range. All 9 standard ratio steps (1/200–1/900) available in all 5 shaft direction configurations — full performance flexibility.
■ Universal Body Oil System — Orientation-Independent Lubrication
WPW-series universal body oil channels designed for adequate worm mesh lubrication across all approved mounting orientations, simplifying maintenance procedure standardisation.
■ Multiple Shaft Direction Configurations: A, B, C, D, E Available
Five configurations provide: A (standard), B (input from side), C (bilateral input vertical up output), D (input above), E (reverse bilateral). These cover essentially all practical installation geometries for process equipment.
■ WPW-Series Proven Platform — Established Installed Base
The WPWE leverages the established WPW-series housing platform with proven records across Australia, Europe, and Asia. Spare parts availability and service familiarity are platform advantages.
■ FC20+ Universal Housing — Full Mechanical Specification
W-body universal housing maintains FC20+ grey cast iron throughout. Universal versatility does not compromise structural specification — same vibration damping, impact resistance, and thermal performance as all WP-series housings.
Industry Applications — WPWE

⚒ Universal-Platform OEM Process Equipment
OEM machine designers building equipment for multiple markets and installation orientations use the WPWE as their single double-stage drive platform — one product supports all mounting orientations.
⚔ Multi-Configuration Plant Drives
Process plants with standardised maintenance prefer universal housing platforms. The WPWE’s universal body provides orientation-agnostic serviceability for maintenance technicians across a diverse plant.
☵ Retrofit Applications — Multiple Drive Positions
Retrofit projects replacing aging drives across multiple machine positions benefit from the WPWE’s universal orientation capability — one gearbox model covers diverse installation geometries.
⚊ Food & Beverage — Universal Slow Drives
Food and beverage facilities with multiple product lines and equipment orientations use the WPWE to standardise their slow drive specification across all lines, simplifying spare parts.
⚛ General Industry Ultra-Low Speed Drives
General industrial applications across conveying, mixing, and processing that require ratios above 1/60 but without a specific orientation constraint benefit from the WPWE’s universal versatility.
Why Choose WPWE — Competitive Comparison
| Feature | Ever-power WPWE | Alternatives |
|---|---|---|
| Shaft Directions Supported | ✓ 5 configurations — one product | One orientation per WPE variant |
| Mounting Versatility | ✓ Universal — all orientations | Orientation-specific variants required |
| Spare Parts | ✓ One SKU for multiple orientations | Multiple SKUs for multiple orientations |
| OEM Flexibility | ✓ Single product for multiple machine positions | Different model per orientation |
| Ratio Range | ✓ 1/200–1/900 double-stage | Same range — single orientation |
| Housing Platform | ✓ WPW-series universal body — proven | Standard WPE body — orientation-limited |
Quality Control & Certifications

✎ ISO 9001:2000 Certified
Every WPWE is manufactured, assembled, and tested under the ISO 9001:2000 quality management framework. We were among the first in our industry category to achieve this certification.
✎ CE Marking
Full CE marking confirms compliance with EU Machinery Directive 2006/42/EC — covering safety, design standards, and manufacturing quality for mechanical power transmission equipment including double-stage worm gearboxes.
✎ Pre-Shipment Testing (Every Unit)
Noise test (below 72 dB(A) at rated load), oil leak test (30-minute pressurisation, both chambers), torque transmission test (output torque within ±5% of rated). Failed units are reworked — not shipped.
✎ Matched-Pair Manufacturing
Both worm wheel sets for each double-stage unit are manufactured in the same production batch, ensuring tooth profile consistency between primary and secondary stages. This matched-pair quality assurance is unique to our double-stage production process.
Why Choose Ever-power for WPWE

We have been producing WPE series double-stage cast iron worm gearboxes for over two decades. Our matched-pair production methodology and dual-chamber quality assurance are the result of accumulated process expertise.
Our CNC gear grinding centres, hobbing machines, and coordinate measuring machines — sourced from the USA, Japan, Germany, and Italy — produce the precision tooth profiles required for consistent double-stage inter-stage performance.
We export to the USA, Europe, Southeast Asia, Australia, and the Middle East. Our export documentation, CE certification, and packing standards are optimised for international supply chains including pharmaceutical and food industry procurement.
Full OEM services: custom nameplating, paint colours, shaft dimensions, flange configurations, and documentation packages. We support custom double-stage specifications from concept to production release.
Our application engineers provide double-stage gearbox selection, torque calculation, oil selection guidance, and installation support. Email [email protected] with your application data for a same-day selection recommendation.
WPE double-stage gearboxes serve pharmaceutical, chemical, food processing, cement, mining, paper, wastewater treatment, and general industrial sectors across global markets.
Customer Reviews & Case Studies
“WPWE is now our standard slow drive specification across all our processing equipment lines. One SKU handles every machine orientation. Our spare parts holding went from 7 different WPE variants to 1 WPWE model. Simplification of this magnitude is difficult to achieve — it is worth the specification change.”
Australia 🇦🇺
“We changed all our slow drive specifications to WPWE universal. Six different machine orientations, one gearbox model. Manufacturing cost down, spare parts down, training down. WPWE quality is consistent and W-body dimensions are exactly as documented.”
Poland 🇵🇱
“WPWE on our multi-line processing plant drives. Universal orientation support was critical — our plant has drives in every conceivable orientation. One maintenance specification, one spare gearbox per site, covers everything.”
UAE 🇦🇪
“WPWE universal double-stage now specified throughout our processing equipment range. 5-shaft-direction capability is the key feature — one product handles all machine variants. Quality is consistent. Universal body is slightly larger than orientation-specific equivalents but standardisation benefit far outweighs this.”
Greece 🇬🇷
Frequently Asked Questions — WPWE
Get Your WPWE Quote Today
Whether you need one unit for a retrofit or hundreds for an OEM production run, Ever-power has the
manufacturing capacity, ISO 9001 quality system, and technical expertise to deliver the WPWE to your
specification. Contact our engineering team — we respond within 24 hours.
✓ OEM & Distributor partnerships welcome
✓ Custom specifications available
✓ Global shipping


