Description
WPDO D+O Cast Iron Worm Reducer — Product Overview
Vertical agitator and mixer applications typically require three separate items: a motor adaptor, a gearbox, and either a right-angle adapter or vertical-output configuration. The WPDO addresses all three directly: the D-type split housing enables in-situ maintenance, the integrated IEC motor flange eliminates the adaptor plate, and the O-type output shaft exits vertically upward — ready to connect directly to the agitator or driven shaft above.
With output torques up to 3,025 Nm and 12 standard sizes from 40–250 mm centre distance, the WPDO serves the full range of water treatment, chemical processing, and food industry vertical drive applications without custom fabrication.
WPDO Worm Reducer Specifications
| Parameter | Specification |
|---|---|
| Series | Single Speed |
| Housing Structure | Separate split cast iron (D-type) |
| Input Configuration | IEC motor flange — horizontal, bilateral (D-type) |
| Output Configuration | Solid shaft — vertical upward (O-type) |
| Reduction Ratio | 1/5–1/60 |
| Centre Distance | 40–250 mm |
| 설치 | Foot-mount, D-split, IEC flange input, vertical upward output |
| Housing Material | FC20+ grey cast iron (GG20) |
| 웜휠 소재 | Tin-bronze ZCuSn10Pb1 |
| 웜 샤프트 재질 | 20CrMnTi, 55–60 HRC surface |
| 매끄럽게 하기 | N220–N320 (−30°C–40°C); N320–N460 (40°C–65°C) |
| Max Oil Temperature | 95°C continuous |
| Weight Range | 5–396 kg |
| Special Feature | D+O: IEC motor flange + vertical upward output + D-split maintenance access |
Size & Performance Data
| Size | 비율 | Input Power (kW) | Output Torque (Nm) | A (mm) | AB (mm) | B (mm) | BB (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 40 | 1/5 | 0.12 | 4–20 | 135 | 75 | 74 | 45 | 5 |
| 50 | 1/5 | 0.18 | 6–35 | 151 | 83 | 97 | 50 | 8 |
| 60 | 1/5 | 0.37 | 11–73 | 167 | 91 | 112 | 55 | 11 |
| 70 | 1/5–1/10 | 0.37–0.75 | 23–70 | 200/202 | 109/111 | 131 | 65 | 17 |
| 80 | 1/5–1/10 | 0.75–1.5 | 43–154 | 225 | 125 | 142 | 70 | 22 |
| 100 | 1/5–1/15 | 1.5 | 58–344 | 280 | 148 | 169 | 100 | 38 |
| 120 | 1/5–1/25 | 2.2–3.0 | 72–521 | 333 | 181 | 190 | 120 | 64 |
| 135 | 1/5–1/30 | 3.0–4.0 | 122–690 | 375 | 202 | 210 | 135 | 85 |
| 155 | 1/5–1/60 | 5.5 | 145–1260 | 448 | 247 | 252 | 155 | 118 |
| 175 | 1/5–1/60 | 5.5–7.5 | 210–1450 | 481 | 262 | 255 | 175 | 165 |
| 200 | 1/5–1/60 | 11.0 | 623–2856 | 543 | 285 | 319 | 200 | 236 |
| 250 | 1/5–1/60 | 11.0–15.0 | 850–3025 | 615 | 330 | 385 | 250 | 396 |
WPDO Worm Reducer — Core Features
■ O-Type Vertical Upward Output — Direct Agitator Connection
Output shaft exits vertically upward, connecting directly to agitator shafts and vertical driven equipment without right-angle brackets or bevel gear stages.
■ IEC Motor Flange — Four-Bolt Direct Motor Mount
Integrated IEC 72-1 flange eliminates the motor adaptor plate. Motor bolts on in four bolts — no coupling, no alignment tool, no adaptor fabrication.
■ D-Type Split Housing — In-Situ Cover Removal
Two-piece cast iron housing allows the top cover to be removed while motor and vertical output shaft remain connected. Worm wheel inspection in-situ during standard maintenance windows.
■ Output Torque to 3,025 Nm — Full WPDA Capacity
The worm gear internals are identical to the WPDA. D+O configuration does not reduce torque — WPDO size 250 delivers 850–3,025 Nm.
■ FC20+ Cast Iron — Splash and Moisture Resistant
Vertical agitator environments often involve process fluid splash. FC20+ cast iron housing provides better corrosion resistance than aluminium in wet industrial environments.
■ Weight 5–396 kg Across 12 Sizes
Full industrial power range from compact size 40 mechanism drives to heavy-duty size 250 agitator drives — all within the standard WPDO product series.
WPDO Worm Reducer — Industry Applications
⚔ Water Treatment Agitators
WPDO vertical upward output connects directly to clarifier, flocculator, and aeration basin agitator shafts. IEC motor bolts on without adaptor, D-split cover opens for maintenance without shaft disconnection.
☵ Chemical & Pharmaceutical Mixers
No coupling or adaptor hardware in the process environment. D-split cover access for annual inspection without removing the motor from the vessel mounting frame.
⚒ Food Processing Vertical Conveyors
Vertical screw and bucket conveyor drives benefit from WPDO direct-motor, direct-shaft connection — fewer external components mean fewer contamination risk points in food plant environments.
⚊ Industrial Wash Agitator Drives
In industrial parts washing and surface treatment lines, vertical agitator drives with IEC motor and upward output simplify the mechanical design and reduce the number of sealing interfaces in a wet environment.
Ever Power Manufacturing Quality — WPDO 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.
WPDO Worm Reducer — Customer Reviews
“WPDO on our clarifier agitator drives. IEC flange motor, vertical shaft output, split cover for annual inspection — all in one unit. No additional brackets or right-angle attachments needed.”
“Used WPDO-120 on our chemical vessel agitators. Direct motor flange eliminates the adaptor plate. D-split cover opens for inspection while the motor stays mounted. Very efficient design.”
“WPDO drives our vertical screw conveyors in a food processing plant. IEC motor bolts on in minutes. Vertical shaft connects to the screw directly. Split housing for hygiene inspection without full teardown.”
“Good D+O combination unit for our water treatment paddles. Motor mounts direct, vertical output connects to the paddle shaft. Would appreciate a size 165 between 155 and 175.”
Frequently Asked Questions — WPDO Worm Reducer
Get Your WPDO 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.
