Beskrivning
WPEDX Double Speed Cast Iron Worm Gearbox
Motorised sub-floor and inverted drives requiring direct IEC motor connection, vertical downward output, and extreme reduction ratios combine three specific engineering requirements that standard catalogues cannot address in a single product. The WPEDX Double Speed Cast Iron Worm Gearbox delivers all three: D-type IEC motor flange, X-type vertical downward output, and double-stage worm reduction in a single D-split cast iron housing. Motor bolts to D-flange, output goes straight down, double-stage achieves the required ultra-low speed — one product for the complete motorised sub-floor drive specification.
Technical Specifications — WPEDX
Key Parameters
| Parameter | Specification |
|---|---|
| Series | Double Speed WPED+X |
| Housing | D-type split cast iron, dual-stage |
| Input | IEC motor flange (D-type) |
| Output | Vertical downward (X-type) |
| Ratio | 1/200–1/900 |
| Size Range | 40–250 combined mm |
| Mounting | Foot-mount, D-split, IEC flange, downward output |
| 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 | 19–450 kg |
| Key Feature | IEC motor + X downward output + double-stage — motorised sub-floor extreme ratio drive |
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 | 0.12 | 63–177 | 314 | 153 | 131 | 75 | 19 |
| 50–80 | 1/300 | 0.18 | 97–252 | 314 | 144 | 142 | 83 | 27 |
| 60–100 | 1/400 | 0.37 | 195–561 | 387 | 175 | 169 | 91 | 45 |
| 70–120 | 1/500 | 0.75 | 384–1166 | 425/445 | 193 | 175 | 109/111 | 75 |
| 80–135 | 1/600 | 1.5 | 616–1811 | 499 | 226 | 210 | 125 | 103 |
| 100–155 | 1/800 | 1.5 | 854–2100 | 570 | 269 | 252 | 148 | 147 |
| 120–175 | 1/900 | 3.0 | 1798–4463 | 631 | 287 | 255 | 181 | 204 |
| 135–200 | … | 4.0 | 2188–5830 | 630/680 | 318 | … | 202 | 298 |
| 155–250 | 5.5 | 5.5 | 2841–9066 | 815 | 380 | 385 | 247 | 470 |
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
■ D-IEC Flange + X-Downward + Double-Stage: Complete Motorised Sub-Floor Drive
WPEDX achieves the motorised sub-floor drive specification in one unit: IEC motor direct mount (D-flange), downward output (X-type), extreme ratio (double-stage). All three previously required separately.
■ D-Split Housing — Sub-Floor Service Without Crane
For ceiling-mount or sub-floor drive positions, the D-split cover removal allows worm wheel service without lowering the entire gearbox. Motor stays mounted, output shaft stays connected, cover comes off — service complete.
■ Downward Output Oil Seal — Rated for Combined IEC Motor + Downward Output Geometry
WPEDX X-type downward output seal is engineered for the specific oil pressure geometry created by the combination of D-split housing and X-type output shaft orientation.
■ IEC Motor Frame Range for Sub-Floor Drive Power
Accepts motors from M8 flange (sizes 40–70, 0.12 kW) to M16 (sizes 155–250, 5.5+ kW) — providing motorised sub-floor drive capability across the full range of industrial conveyor and mixer motor sizes.
■ Output Torques to 9,066 Nm — Maximum Motorised Sub-Floor Torque
Full double-stage output torques through the X-type downward shaft — identical ratings to the WPEDA solid horizontal output — providing torque capacity for the heaviest motorised sub-floor drive applications.
■ CE Certified for Below-Floor & Overhead Installations
CE marking and ISO 9001:2000 certification covers the WPEDX in all approved installation orientations including sub-floor, ceiling-mount, and inverted configurations.
Industry Applications — WPEDX
⚒ Motorised Sub-Floor Ultra-Slow Conveyor Drives
Below-floor motorised conveyors combining IEC direct motor, downward output, and extreme ratio are the archetypal WPEDX application — motor bolts to D-flange, output drives the sub-floor screw or chain at 1–8 RPM.
☵ Inverted Motorised Agitators — Direct Motor Connection
Inverted agitators where the drive is above and the agitator hangs below, and the motor must mount directly via IEC flange, use the WPEDX for the complete motorised inverted drive in one unit.
⚔ Ceiling-Mount Motorised Slow Drives
Ceiling-mounted motorised drives in factories with restricted floor and wall space use the WPEDX — motor mounts on top (IEC D-flange), output hangs down, extreme ratio achieves the required slow speed.
⚊ Overhead Track System — Motorised Ultra-Slow Head Drives
Motorised overhead conveyor track head drives requiring very slow chain speeds with IEC motor direct mount and downward output to the chain drive below specify the WPEDX.
⚛ Industrial Press — Motorised Slow Downward Drive
Slow industrial pressing operations where the pressing mechanism moves downward and the motor must be directly mounted above the drive unit use the WPEDX for motorised downward output at extreme ratios.
Why Choose WPEDX — Competitive Comparison
| Feature | Ever-power WPEDX | Alternatives |
|---|---|---|
| Motor Mounting | ✓ D-IEC direct — no adaptor | Coupling + adaptor plate required |
| Output Direction | ✓ X-type vertically downward | Horizontal — right-angle head needed |
| Ratio Range | ✓ 1/200–1/900 double-stage | 1/5–1/60 single stage |
| Housing Service (at height) | ✓ D-split — cover removes without crane | Full unit lowering required |
| Component Count | ✓ 1 unit: gearbox + flange + 2nd stage | 3+ components minimum |
| Sub-Floor Footprint | ✓ Single compact housing | Two gearboxes + coupling + adaptor |
Quality Control & Certifications
✎ ISO 9001:2000 Certified
Every WPEDX 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 WPEDX
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
“WPEDX on our underground below-floor drag conveyor drives. Motor bolts to IEC flange, output goes down through the floor plate at 4 RPM. Split housing means inspection from floor level without sub-floor entry — a major safety improvement. Cast iron handles the underground environment perfectly.”
Australia 🇦🇺
“WPEDX on our ceiling-mount slow conveyor drives. IEC motor up top, downward output to chain drive below. Split housing cover drops off without a platform — service from a regular stepladder. Double-stage ratio and inverted motorised configuration were exactly our specification.”
Denmark 🇩🇰
“We use WPEDX on our inverted motorised screw feeders. IEC direct motor mount and downward output in a double-stage housing replaced a custom solution that was difficult to maintain. Split housing service access reduced scheduled maintenance time from 5 hours to 1 hour per unit.”
Poland 🇵🇱
“WPEDX on our overhead track motorised drives. IEC direct motor, downward output, double-stage ratio — complete specification in one unit. Quality consistent across multiple orders. Delivery time reliable for standard sizes.”
China 🇨🇳
Frequently Asked Questions — WPEDX
Get Your WPEDX 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 WPEDX to your
specification. Contact our engineering team — we respond within 24 hours.
✓ OEM & Distributor partnerships welcome
✓ Custom specifications available
✓ Global shipping
