WPDA Single Speed Cast Iron Worm Gearbox — WP Series

Aligning a standard AC motor directly to a gearbox without a separate adaptor plate adds cost, increases shaft misalignment risk, and wastes installation space. The WPDA Single Speed Cast Iron Worm Gearbox solves this with a D-type split housing that integrates an IEC-standard motor flange directly into the gearbox structure. Drop your motor onto the flange, tighten four bolts, and the drive is complete — no coupling, no adaptor, no alignment headaches. Delivering output torques up to 3,025 Nm, the WPDA is the preferred choice for motor manufacturers, OEM machine builders, and maintenance engineers upgrading legacy conveyor and pump drives across Australia and Southeast Asia.

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■ Integrated IEC Motor Flange — Zero-Adaptor Installation

The D-type split housing is machined to IEC 72-1 standard, accepting A02, Y-series, and compatible motor flanges (sizes 56–355 frame) without separate adaptor rings. This eliminates a critical point of potential misalignment and removes one component from your inventory.

■ Split D-Housing — Maintainability Advantage

The separate (D-type) two-piece housing allows the cover to be removed without disturbing motor or driven machine connections. Worm wheel inspection and replacement can be performed in situ, dramatically reducing maintenance downtime versus solid-housing units.

■ Broad Power Range: 0.12 kW to 15 kW

From micro conveyor drives at 0.12 kW (size 40) to heavy industrial applications at 15 kW (size 250), the WPDA covers the full spectrum of standard motor frames with a single unified gearbox design.

■ Bronze Tin-Alloy Worm Wheel — 50,000+ Hour Service Life

The tin-bronze worm wheel alloy (ZCuSn10Pb1) provides significantly better anti-galling properties than standard bronze, delivering consistent meshing noise below 68 dB(A) across the full 50,000+ hour design life.

■ Sealed Air Vent Prevents Pressure Build-up

The top-mounted air vent with dust-exclusion filter equalises internal pressure during thermal cycling without allowing contaminant ingress — preventing the oil leaks common in unvented gearbox designs after prolonged operation.

■ Nameplate for Traceability — ISO 9001 Compliant

Every WPDA ships with a permanently fixed metal nameplate carrying model, size, ratio, serial number, and manufacturing date for full supply chain traceability.

⚒ OEM Machine Building

Machine builders specify the WPDA because the integrated IEC flange eliminates the motor adaptor component from the BOM, reducing assembly time by up to 40% compared to separate gearbox + adaptor configurations.

⚙ Pump Station Drives

Direct motor mounting eliminates shaft coupling misalignment — the leading cause of early bearing failure in pump station applications. The WPDA keeps motor and gearbox rigidly aligned throughout the operating life.

☷ Textile & Printing Machinery

Printing presses and textile winders require precise, repeatable speed settings. The WPDA’s integral motor flange maintains consistent motor-gear alignment even under the vibration inherent in high-speed web handling operations.

⚊ Automated Production Lines

On automotive and electronics assembly lines where rapid motor-gearbox swap-out during maintenance is critical, the WPDA’s bolt-on motor flange reduces MTTR (Mean Time To Repair) dramatically versus coupled units.

⚔ Water Treatment & Utilities

Water treatment paddle mixers and valve actuators benefit from the WPDA’s weather-resistant cast iron construction and direct motor mounting — fewer external sealing surfaces, lower ingress risk, better corrosion resistance than aluminium alternatives.

✎ ISO 9001:2000 Certified

We hold ISO 9001:2000 International Quality System Certification — the first in our industry category to achieve this standard. Every WPDA is manufactured, assembled, and tested under this quality framework.

✎ CE Marking

Full CE marking confirms compliance with EU Machinery Directive 2006/42/EC requirements — covering safety, design standards, and manufacturing quality for mechanical power transmission equipment.

✎ Pre-Shipment Testing

Every unit undergoes: Noise test (below 68 dB(A) at rated load), Oil leak test (30-minute pressurisation), and Torque transmission test (output torque within ±5% of rated). Failed units are reworked — not shipped.

✎ FC20+ Material Certification

Housing castings are verified by material test certificates for FC20 grade (220 MPa minimum tensile strength). Hardness testing (160–200 HB) and ultrasonic testing for internal defects are performed on size 135 and above.

“We’ve standardised on WPDA-100 for all our quarry conveyor upgrade projects. The IEC flange means we can swap a failed motor in under 30 minutes on-site without any alignment tools. In dusty, time-critical mine maintenance, that matters enormously.”

“Our packaging machine redesign cut BOM cost significantly by moving to WPDA units — we eliminated the adaptor plate and flexible coupling from every drive station. Assembly line output increased 15% due to faster build times.”

“WPDA gearboxes drive our loom main shafts. The direct motor flange eliminated the vibration we had with previous belt-driven reducers. Fabric quality improved noticeably — fewer defects from drive system vibration.”

“Good build quality and easy IEC flange compatibility. The D-split housing made our first scheduled inspection very fast — worm wheel showed minimal wear after 8,000 hours. Would appreciate more intermediate sizes between 135 and 155.”