WPDS Single Speed Cast Iron Worm Reducer — WP Series

Cái WPDS is the most compact overhead motor drive variant in the WP series. The D-type split housing delivers in-situ maintenance access — remove the top cover with the motor still mounted. The S-type top-entry IEC flange eliminates both the adaptor plate and the lateral motor projection of standard side-entry configurations. Together, these two features minimise the total installed drive height while providing the lowest maintenance downtime.

With the motor mounting directly overhead and the split cover opening independently, WPDS installations in pit-mounted drives, space-constrained pump stations, and overhead conveyor head frames achieve an installed height that no other single-unit configuration can match.

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■ S-Type IEC Flange — Motor Directly Overhead

Top-entry IEC flange eliminates the lateral motor projection of side-entry A-type configurations. Combined with the compact foot-mount base, WPDS achieves the minimum possible overhead drive footprint.

■ D-Split Housing — Cover Off While Motor Stays

The two-piece cast iron housing splits independently of the IEC motor flange joint. Remove the top cover for worm wheel inspection without disconnecting or repositioning the motor.

■ No Adaptor Plate — Motor Bolts Directly On

The IEC 72-1 flange machined into the housing eliminates the motor adaptor component from the BOM. Four bolts connect motor to reducer — the complete motor installation process.

■ Output Torque to 3,025 Nm — Same as WPDA

The WPDS worm gear internals are identical to the WPDA. D+S input configuration does not reduce output torque — size 250 still reaches 850–3,025 Nm at 1/5–1/60 ratio.

■ FC20+ Cast Iron for Wet & Harsh Environments

Overhead pump and pit installations in water treatment and chemical processing benefit from cast iron’s corrosion resistance advantage over aluminium in damp or splash-prone environments.

■ Cân nặng từ 5–396 kg, có 12 kích cỡ

From 5 kg (size 40) for compact mechanism drives to 396 kg (size 250) for heavy industrial applications — the full industrial drive power range in a single WPDS product series.

⚔ Water Treatment & Pit-Mounted Drives

In treatment plant pit installations where lateral space is the binding constraint, WPDS overhead motor positioning and compact split housing make the difference between a standard unit and a custom fabricated solution.

⚙ Pump Station Vertical Drives

Top-entry IEC flange and compact housing reduce total pump station drive height in above-floor installations, enabling tighter equipment spacing and wider aisle clearance on shared base frames.

⚊ Grain Elevator Head Frames

Limited clearance above elevator head frames is a common constraint. WPDS overhead motor reduces the required headroom by eliminating the side-projection of the motor from the drive envelope.

⚒ Chemical Agitator Drives

Overhead motor keeps all electrical connections away from chemical splash zones at the agitator shaft level. D-split cover enables annual inspection without any electrical disconnection.

■ ISO 9001:2000 Certified

Every unit is manufactured under ISO 9001:2000 quality management. Raw material inspection, in-process checks, and final testing are all documented and traceable to each unit’s serial number.

■ Dấu CE — Chỉ thị về máy móc của EU 2006/42/EC

Việc tuân thủ đầy đủ chứng chỉ CE khẳng định sự phù hợp với các tiêu chuẩn an toàn và thiết kế của châu Âu về truyền động cơ khí, hỗ trợ xuất khẩu sang thị trường EU, Anh, Úc và New Zealand.

■ Kiểm tra trước khi giao hàng: Độ ồn, rò rỉ, mô-men xoắn

Every unit passes three tests before shipping: noise below 68 dB(A) at rated load, 30-minute pressurisation leak test, and torque transmission within ±5% of rated value. Non-conforming units are reworked — not shipped.

■ Chứng nhận vật liệu FC20+

Housing castings are verified by mill certificates for FC20 grade: minimum 220 MPa tensile strength, 160–200 HB hardness. Ultrasonic defect testing is performed on size 135 and above.

“WPDS on our water treatment paddle mixer drives. Overhead IEC motor keeps the unit compact for pit installation. D-split cover removes easily for annual inspection without motor removal — very practical.”

“Used WPDS-120 on our chemical dosing pump drives. Most compact overhead motor drive I’ve used. Motor bolts on in 10 minutes, split housing open for worm wheel check in another 10. Excellent design.”

“WPDS drives our grain elevator head shaft. Top-entry IEC input reduced the overall drive height by over 200 mm versus previous configuration. Fit in the headroom we had available.”

“Good performance on our packaging conveyor drives. WPDS gives us vertical motor and split maintenance access in one unit. Would like to see a size between 80 and 100 in the range.”