Description
WPX Vertical Downward Output Cast Iron Worm Reducer — Product Overview
The WPX addresses the mirror-image need to the WPO: applications where the driven shaft must exit downward — ceiling-mounted overhead conveyors, inverted drives, and gravity-feed mechanisms. The X-type output shaft exits vertically downward from the housing, while the motor input enters horizontally from either side via the bilateral worm shaft.
The WPX uses identical FC20+ cast iron housing, worm gear internals, and torque ratings to the WPA and WPO. The X-type designation changes only the output shaft direction — all 12 frame sizes, full 1/5–1/60 ratio range, and 2,371 Nm maximum output torque are retained.

WPX Worm Reducer Specifications

| Parameter | Specification |
|---|---|
| Series | Single Speed |
| Housing Structure | Solid integral cast iron |
| Input Configuration | Solid shaft — horizontal, bilateral |
| Output Configuration | Solid shaft — vertical downward (X-type) |
| Reduction Ratio | 1/5–1/60 |
| Centre Distance | 40–250 mm |
| Mounting | Foot-mount inverted, or ceiling/overhead mount with output shaft down |
| Housing Material | FC20+ grey cast iron (GG20) |
| Worm Wheel Material | Tin-bronze ZCuSn10Pb1 |
| Worm Shaft Material | 20CrMnTi, 55–60 HRC surface |
| Lubrication | N220–N320 (−30°C–40°C); N320–N460 (40°C–65°C) |
| Max Oil Temperature | 95°C continuous |
| Weight Range | 5–340 kg |
| Special Feature | X-type: output shaft exits vertically downward — for ceiling/inverted mount drives |
Size & Performance Data
| Size | Ratio | Input Power (kW) | Output Torque (Nm) | A (mm) | AB (mm) | B (mm) | BB (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 40 | 1/5–1/60 | 0.48–0.12 | 17–26 | 143 | 87 | 74 | 45 | 5 |
| 50 | 1/5–1/60 | 0.80–0.20 | 28–43 | 175 | 108 | 97 | 50 | 8 |
| 60 | 1/5–1/60 | 1.25–0.32 | 45–70 | 198 | 120 | 112 | 55 | 11 |
| 70 | 1/5–1/60 | 1.95–0.52 | 70–113 | 231 | 140 | 131 | 65 | 15.5 |
| 80 | 1/5–1/60 | 2.65–0.75 | 95–163 | 261 | 160 | 142 | 70 | 24 |
| 100 | 1/5–1/60 | 4.45–1.00 | 170–229 | 322 | 190 | 169 | 90 | 38 |
| 120 | 1/5–1/60 | 6.15–1.50 | 242–355 | 371 | 219 | 190 | 100 | 56 |
| 135 | 1/5–1/60 | 11.25–2.30 | 460–562 | 422 | 249 | 210 | 114 | 84 |
| 155 | 1/5–1/60 | 14.50–3.00 | 655–791 | 497 | 295 | 252 | 140 | 115 |
| 175 | 1/5–1/60 | 21.50–4.07 | 823–1078 | 534 | 314 | 255 | 155 | 140 |
| 200 | 1/5–1/60 | 22.60–5.58 | 1280–1449 | 580 | 342 | 319 | 175 | 200 |
| 250 | 1/5–1/60 | 33.20–8.62 | 1881–2371 | 705 | 420 | 385 | 200 | 340 |
WPX Worm Reducer — Core Features
■ X-Type Downward Output — Ceiling/Inverted Mount Ready
Output shaft exits vertically downward as standard. Mount the unit inverted on an overhead structure with the output pointing down — no right-angle adapter or bevel stage required.
■ Bilateral Horizontal Input — Motor from Either Side
The horizontal bilateral input shaft is retained in the WPX, allowing motor connection from either side of the overhead frame without a mirrored unit.
■ Oil Circuit for X-Type Downward Orientation
Oil volume and circulation geometry are specified for X-type inverted mounting. Fill to the WPX lubrication table mark — ensures adequate worm wheel submersion with output shaft pointing down.
■ Same Torque Capacity as WPA — 2,371 Nm Maximum
X-type designation affects output direction only. All WPX sizes deliver identical torque to their WPA counterparts — worm gear internals are unchanged.
■ 12 Frame Sizes: 40–250 mm
From 5 kg (size 40) to 340 kg (size 250), covering the full range of overhead conveyor and ceiling-mounted drive applications.
■ FC20+ Cast Iron Housing — Suitable for Inverted Mounting
Cast iron housing rigidity supports the weight of the drive unit in inverted ceiling-mount configurations without the housing distortion risk that affects lighter aluminium units under sustained load.
WPX Worm Reducer — Industry Applications

⚊ Overhead Mining Conveyors
Ceiling-mounted WPX units drive overhead conveyor head shafts directly with the downward output shaft, eliminating the right-angle attachment that horizontal-output reducers require in this configuration.
⚒ Hanging & Inverted Drive Systems
For overhead monorail, ceiling conveyor, and hanging process line drives, WPX inverted mounting with downward output is the cleanest drive solution — no angular attachment, no additional shaft change-of-direction hardware.
☷ Gravity Feed & Hopper Gates
WPX overhead mounting with downward output drives gravity feed gate mechanisms directly from above — compact, low-maintenance drive configuration for bulk material handling.
⚙ Overhead Process Line Drives
In automotive, electronics, and consumer goods assembly lines where conveyors run overhead, WPX ceiling-mount drives eliminate floor-level obstructions while keeping all drive hardware above the work envelope.
Ever Power Manufacturing Quality — WPX Worm Reducer

■ ISO 9001:2000 Certified Production
Every unit is manufactured under ISO 9001:2000 quality management. Raw material inspection, in-process checks, and final assembly testing are fully documented and traceable to each unit’s serial number.
■ CE Marking — EU Machinery Directive 2006/42/EC
Full CE compliance confirms adherence to European safety and design standards for mechanical power transmission, supporting export to EU, UK, Australian, and New Zealand markets.
■ Pre-Shipment Testing: Noise, Leak, Torque
Every unit passes three tests: noise below 68 dB(A) at rated load, 30-minute pressurisation leak test, and output torque within ±5% of rated. Non-conforming units are reworked — not shipped.
■ FC20+ Material Certification
Housing castings are verified by mill certificates for FC20 grade: minimum 220 MPa tensile strength, 160–200 HB hardness. Ultrasonic defect testing on size 135 and above.
WPX Worm Reducer — Customer Reviews
“WPX-100 on our overhead mining conveyor drives. Ceiling-mount with downward output shaft directly onto the conveyor head shaft. Eliminated the angular drive attachment we previously needed.”
“Used WPX-80 on our hanging overhead conveyor system. Inverted mount with X-type downward output — straightforward installation. No custom brackets required.”
“WPX on our gravity feed hopper drives. X-type output directly drives the gate mechanism from above. Clean, compact installation with no right-angle attachment.”
“Good inverted drive configuration. WPX-135 on our overhead process line conveyors. Oil level adjustment for X-orientation was correctly specified in the documentation.”
Frequently Asked Questions — WPX Worm Reducer
Get Your WPX Quote Today
Tell Ever Power your application requirements — torque, ratio, mounting, and shaft dimensions. Engineering response within 24 hours. OEM custom specifications, bulk pricing, and global shipping available.



