Description
WPWKO Universal Speed Cast Iron Worm Reducer — Product Overview
Universal P-housing with coupling-free K hollow bore in O-type vertical upward direction — agitator shaft inserts directly from below in any WPW input configuration.
The WPW P-housing accommodates all five standard shaft direction configurations in a single casting — eliminating the need for direction-specific housing variants. Input power from 0.06 kW (size 40) to 98 kW (size 250), output torques from 2.2 Nm to 4,440 Nm across 11 standard sizes.

WPWKO Universal Speed Worm Reducer Specifications

| Parameter | Specification |
|---|---|
| Series | Universal Speed WPW |
| Housing | Universal P-housing with coupling-free K hollow bore in O-ty |
| Input | Solid shaft, bilateral |
| Output | Hollow bore (K-type), vertical upward |
| Ratio | 1/5–1/60 |
| Size Range | 40–250 mm |
| Mounting | Foot-mount, WPW universal body, all orientations |
| Housing Material | FC20+ grey cast iron (GG20) |
| Worm Wheel | Tin-bronze ZCuSn10Pb1 |
| Worm Shaft | 20CrMnTi, 55–60 HRC surface |
| Lubrication | N150–N220 (−30°C–40°C); N220–N320 (40°C–65°C) |
| Max Oil Temp | 95°C continuous |
| Weight Range | 6.5/7–430/481 kg |
| Key Feature | WPW Universal Body + K Hollow Bore + O Vertical — Coupling-Free Vertical Drive |
Size & Performance Data
| Size (mm) | Ratio | Input (kW) | Output Torque (Nm) | A (mm) | AA (mm) | AB (mm) | BB (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 40 | 1/5–1/60 | 0.06–0.78 | 2.2–26.5 | 121/133 | 53 | 40 | 49/62 | 6.5/7 |
| 50 | 1/5–1/60 | 0.10–1.33 | 4.5–54.0 | 133/148 | 57 | 44 | 55/70 | 9/10 |
| 63 | 1/5–1/60 | 0.19–2.25 | 8.5–104 | 155/171 | 67 | 51 | 65/82 | 14/16 |
| 75 | 1/5–1/60 | 0.32–3.75 | 14.5–175 | 175/191 | 75 | 57 | 73/91 | 20/23 |
| 90 | 1/5–1/60 | 0.62–6.98 | 28–316 | 205/224 | 89 | 67 | 87/107 | 33/38 |
| 110 | 1/5–1/60 | 1.18–11.9 | 53–540 | 238/260 | 103 | 78 | 101/123 | 54/62 |
| 130 | 1/5–1/60 | 2.02–19.7 | 91–891 | 266/290 | 115 | 87 | 112/136 | 78/89 |
| 150 | 1/5–1/60 | 3.07–28.8 | 139–1,304 | 302/329 | 131 | 100 | 128/155 | 113/128 |
| 175 | 1/5–1/60 | 5.13–45.9 | 232–2,074 | 348/377 | 151 | 115 | 147/177 | 170/191 |
| 200 | 1/5–1/60 | 8.02–66.2 | 363–2,993 | 392/424 | 170 | 130 | 165/199 | 250/265 |
| 250 | 1/5–1/60 | 13.0–98.0 | 590–4,440 | 452/481 | 197 | 150 | 195/232 | 380/420 |
WPWKO Worm Reducer — Core Features
■ WPW Universal Body + K Hollow Bore + O Vertical — Coupling-Free Vertical Drive
Universal P-housing with coupling-free K hollow bore in O-type vertical upward direction — agitator shaft inserts directly from below in any WPW input configuration.
■ K+O Hollow Bore Vertical — No Coupling at Agitator Interface
Agitator shaft inserts through the K-bore vertically — no coupling hardware at the vessel shaft interface in any input orientation.
■ Universal Input Direction — Motor Position Flexible
All WPW input shaft directions supported — motor position does not constrain the K+O hollow bore vertical output.
■ Shaft-Mount + Vertical Hollow Bore — Compact Drive
Torque arm boss enables shaft-mounting in any WPW orientation with K-bore vertical agitator connection.
■ Output Torque to 4,440 Nm — K+O Full Capacity
Torque ratings identical to WPW.
■ One Product — All K+O Vertical Input Positions
Eliminates direction-specific K+O vertical reducer variants.
WPWKO Worm Reducer — Industry Applications

⚔ Universal Hollow Bore Vertical Agitator Platform
Process vessels with hollow bore vertical agitator shaft connections in varied motor positions standardise on WPWKO — one product, coupling-free agitator interface.
☵ Multi-Input Position Vertical Mixer Drives
OEM vertical mixer builders with multiple motor position requirements use WPWKO universal body for coupling-free agitator shaft drives.
⚒ Water Treatment Universal Hollow Shaft Drives
Water treatment agitator hollow bore drives in varied motor positions standardise on WPWKO.
⚊ Universal Coupling-Free Vertical Drive Platform
Process equipment requiring coupling-free vertical agitator drives in multiple motor positions standardises on WPWKO.
Ever Power Manufacturing Quality — WPWKO Worm Reducer

■ ISO 9001:2000 Certified Production
Every WPW unit is manufactured under ISO 9001:2000 quality management. Raw material inspection, in-process checks, and final testing are documented and traceable.
■ CE Marking — EU Machinery Directive 2006/42/EC
Full CE compliance for export to EU, UK, Australian, and New Zealand markets.
■ Pre-Shipment Testing: Noise, Leak, Torque
Noise below 68 dB(A) at rated load, 30-minute pressurisation leak test, and output torque within ±5% of rated. Non-conforming units reworked before shipment.
■ FC20+ Material Certification
Housing castings verified by mill certificates: minimum 220 MPa tensile strength, 160–200 HB hardness.
WPWKO Universal Worm Reducer — Customer Reviews
“WPWKO on our vessel agitator drives. K-bore accepts agitator shaft directly upward, no coupling, universal input direction. One product for all our vertical agitator positions.”
“Used WPWKO on vertical mixer shaft drives. Hollow bore vertical, universal body for varied motor positions. Coupling-free agitator connection at all positions.”
“WPWKO on water treatment agitators. K-bore vertical, universal input. Coupling-free at agitator interface. One product covers all our drive positions.”
“Good K+O universal unit. WPWKO-90 at multiple positions. K+O oil volume guide needed.”
Frequently Asked Questions — WPWKO Universal Speed Worm Reducer
Get Your WPWKO 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.



