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WPWO Universal Speed Cast Iron Worm Gearbox
Vertical agitator drives — vessels requiring a slow upward output shaft for top-entry agitation — in equipment that must also accommodate multiple installation orientations require a gearbox combining vertical upward output with universal housing versatility. The WPWO Universal Speed Cast Iron Worm Gearbox provides the WPW-series universal body with O-type vertical upward output across 5 shaft direction configurations. Slow vertical agitation from ratio 1/5 to 1/60, in any installation orientation, from a single standard cast iron product.
Technical Specifications — WPWO
Key Parameters
| Parameter | Specification |
|---|---|
| Series | Universal Speed (WPW+O) |
| Housing | Solid integral cast iron (P-housing) |
| Input | Solid shaft (bilateral) |
| Output | Vertical upward (O-type) |
| Ratio | 1/5–1/60 |
| Size Range | 40–250 mm |
| Mounting | Foot-mount, vertical upward output |
| Housing Material | FC20+ grey cast iron (GG20) |
| Worm Wheel | Tin-bronze alloy ZCuSn10Pb1 |
| Worm Shaft | 20CrMnTi carburised & hardened, 55–60 HRC |
| Lubrication | N150–N220 (–30°C–40°C); N220–N320 (40°C–65°C) |
| Max Oil Temp | 95°C continuous |
| Weight Range | 6.5–430 kg |
| Key Feature | WPWO: universal W-body + O vertical upward output — slow vertical agitator and turntable drives in universal housing |
Size & Performance Data
| Size (mm) | Ratio | Input Power (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 | 53 | 40 | 49 | 6.5 |
| 50 | 1/5–1/60 | 0.10–1.33 | 4.5–54.0 | 133 | 57 | 44 | 55 | 9 |
| 63 | 1/5–1/60 | 0.19–2.25 | 8.5–104 | 155 | 67 | 51 | 65 | 14 |
| 75 | 1/5–1/60 | 0.32–3.75 | 14.5–175 | 175 | 75 | 57 | 73 | 20 |
| 90 | 1/5–1/60 | 0.62–6.98 | 28–316 | 205 | 89 | 67 | 87 | 33 |
| 110 | 1/5–1/60 | 1.18–11.9 | 53–540 | 238 | 103 | 78 | 101 | 54 |
| 130 | 1/5–1/60 | 2.02–19.7 | 91–891 | 266 | 115 | 87 | 112 | 78 |
| 150 | 1/5–1/60 | 3.07–28.8 | 139–1304 | 302 | 131 | 100 | 128 | 113 |
| 175 | 1/5–1/60 | 5.13–45.9 | 232–2074 | 348 | 151 | 115 | 147 | 170 |
| 200 | 1/5–1/60 | 8.02–66.2 | 363–2993 | 392 | 170 | 130 | 165 | 238 |
| 250 | 1/5–1/60 | 14.0–106 | 633–4796 | 479 | 208 | 159 | 202 | 430 |
Universal W-Body Structure
The WPW-series universal housing is manufactured as a single FC20+ grey cast iron casting with bore positions, keyway orientations, and oil channels configured for the selected shaft direction. All 5 shaft direction configurations (A/B/C/D/E) use the same casting geometry with specific machining per configuration.
Hardened 20CrMnTi steel worm shaft with case-hardened tooth flanks (55–60 HRC). The worm shaft and its bearings are selected for the specific input orientation of the model — A-type (below), S-type (overhead), or bilateral — ensuring rated bearing life in the correct load direction.
Tin-bronze ZCuSn10Pb1 alloy worm wheel machined to mesh precisely with the hardened worm shaft. The bronze material provides excellent anti-seizure properties and wear-in characteristics for the worm gear mesh.
Output shaft in quenched-and-tempered steel with double-lip oil seals rated for the specific output orientation (horizontal, vertical upward O-type, vertical downward X-type, side T-type, or extended V-type). Seal selection matches the hydrostatic pressure requirements of the installed orientation.
Single-stage oil bath lubrication. Oil fill port, oil gauge, vent plug, and drain plug are positioned for the selected shaft direction configuration. Fill quantities are specified per configuration in the installation guide — do not use generic fill values across configurations.
FC20+ cast iron foot-mount base integrated with the housing casting. Four mounting holes for B3 foot mounting. The base orientation is fixed for the selected shaft direction configuration. For shaft-mount (hollow bore) applications, the torque arm boss provides housing restraint.
Core Features & Benefits
■ Universal W-Body + O Vertical Upward Output: Vertical Drive in Any Orientation
The WPWO provides the O-type vertical upward output shaft in all 5 WPW shaft direction configurations — the same vertical output direction is maintained regardless of which input orientation is selected.
■ O-Type Output Bearings Rated for Vertical Axial Load
Output shaft bearings are rated for full vertical upward axial loads — agitator and equipment hanging weight plus dynamic agitation reaction forces — across the full WP torque range.
■ O-Type Vertical Output Oil Seals — Double-Lip Premium
Vertical upward output shaft oil seals are double-lip premium seals rated for hydrostatic pressure in vertical orientation, identical specification to the single-orientation WPO.
■ Universal Body Oil System — O-Type Mode
WPW universal body oil channels accommodate the vertical output orientation. Orientation-specific fill quantities for O-type mode are specified in the WPWO installation guide.
■ 5 Input Shaft Direction Options for Vertical Output
Five shaft direction configurations provide diverse input shaft positions even with the fixed vertical upward output direction — allowing motor/input to be positioned for the most practical installation.
■ Output Torques to 4,796 Nm in Vertical Configuration
The O-type vertical upward output does not derate the WPWO torque rating. Full WP output torques are maintained through the vertical output shaft.
Industry Applications — WPWO
☵ Universal Platform Vessel Agitators
Process equipment product lines with vertical agitator drives across multiple vessel orientations use the WPWO universal W-body to standardise their slow vertical drive specification across the complete product range.
⚔ Multi-Vessel Chemical & Food Processing
Chemical and food plants with multiple vessel types requiring slow vertical agitation at different installation angles use the WPWO for standardised maintenance and spare parts across all vessel drives.
⚒ Wastewater Treatment — Multiple Tank Configurations
Wastewater treatment plants with diverse tank configurations and orientations standardise their slow agitator drives on the WPWO universal platform for simplified procurement and service.
⚊ OEM Agitated Vessel Equipment — Universal Platform
OEM manufacturers building agitated vessel equipment in multiple sizes and configurations use the WPWO to eliminate orientation-specific gearbox variants from their component range.
⚛ General Vertical Output Drives — Universal Housing
Any application requiring a vertical upward output shaft across multiple installation orientations benefits from the WPWO’s universal body combined with O-type output.
Why Choose WPWO — Competitive Comparison
| Feature | Ever-power WPWO | Alternatives |
|---|---|---|
| Vertical Output | ✓ O-type upward — built-in | Horizontal — right-angle adaptor needed |
| Universal Housing | ✓ 5-direction W-body — all positions | Single orientation per WPO model |
| Spare Parts | ✓ One SKU for all orientations + vertical output | Multiple models for multiple orientations |
| Input Flexibility | ✓ 5 input shaft positions available | Fixed input-output relationship |
| OEM Versatility | ✓ One product for all vessel orientations | Different model per orientation |
| Output Torque | ✓ Full WP range in vertical | Same — single orientation |
Quality Control & Certifications
✎ ISO 9001:2000 Certified
Every WPWO is manufactured, assembled, and tested under ISO 9001:2000 quality management. Our factory was among the first in this product 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 all WPW-series universal configurations.
✎ Pre-Shipment Testing
Noise test (below 72 dB(A) at rated load), oil leak test (30-minute pressurisation), torque transmission test (output torque within ±5% of rated). Failed units are reworked — not shipped.
✎ Universal Configuration Quality
Each shaft direction configuration (A–E) is verified dimensionally for correct bore position, keyway orientation, and oil channel routing before leaving our production line.
Why Choose Ever-power for WPWO
We have been manufacturing WPW-series universal cast iron worm gearboxes for over two decades. Our 5-shaft-direction production process — with orientation-specific quality checks — is a core competency of our manufacturing facility.
Our CNC machining centres maintain the bore position accuracy and keyway orientation tolerances required for consistent inter-part fit across all 5 shaft direction configurations of the WPW universal body.
We export the WPW series to Australia, Europe, Southeast Asia, the Middle East, and North America. Our export documentation, CE certification, and packing standards are optimised for international procurement.
Full OEM services: custom nameplating, paint colours, shaft dimensions, flange configurations, and documentation packages. Custom shaft direction combinations and output configurations available for OEM volumes.
Our application engineers provide WPW gearbox selection, load calculation, shaft direction selection, oil specification, and installation support. Email [email protected] with your application data.
The complete WPW universal series covers solid shaft, hollow bore, IEC flange, and extended shaft variants in all output directions — horizontal, vertical up, vertical down, side, and extended. One universal platform for all drive applications.
Customer Reviews & Case Studies
“WPWO is our standard vertical agitator drive for all vessel types. Universal body lets us specify one product for vessels mounted at various angles across our plant — all with vertical output. Maintenance uses one specification. Spare parts holding is one model. Exceptional practical value.”
Australia 🇦🇺
“We standardised on WPWO for our complete slow vertical mixer range across multiple plant orientations. Vertical output handles our top-entry agitators perfectly. Universal body means our technicians know one product for the whole facility.”
Brazil 🇧🇷
“WPWO specified for our vessel drive standard. Universal orientation + vertical output satisfies our complete drive requirement in one catalogue number. GMP validation documentation for a standard catalogue product is much simpler than for a custom unit.”
South Korea 🇰🇷
“WPWO on our slow agitator drives. Universal body was the deciding factor — we have vessels in 3 different orientations. One gearbox type for all three, vertical output for all top-entry agitators. Good product quality, reliable delivery, consistent dimensions.”
Sweden 🇸🇪
Frequently Asked Questions — WPWO
Get Your WPWO 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 WPW universal series expertise to deliver the WPWO to your exact specification. Contact our engineering team — we respond within 24 hours.
✓ OEM & Distributor partnerships welcome ✓ Custom configurations available ✓ Global shipping
