WPDX Single Speed Cast Iron Worm Gearbox — WP Series

Inverted and below-floor drive applications that also require direct IEC motor mounting combine two specific engineering requirements that most standard gearboxes cannot address simultaneously. The WPDX Single Speed Cast Iron Worm Gearbox integrates the D-type IEC motor flange with the X-type vertically downward output shaft in one precision-machined cast iron housing. This combination serves OEM builders of below-floor conveyor systems, inverted mixer assemblies, and sub-floor material handling equipment who need the fewest possible components between motor and driven equipment without sacrificing drive performance or maintainability.

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■ D+X: IEC Motor Flange + Vertical Downward Output — Single Unit

The WPDX eliminates the adaptor plate (replaced by D-flange) and the right-angle head (replaced by X-type output) while adding the field-maintainability of the D-split housing. Three components replaced by one.

■ D-Split Housing for Overhead Drive Station Maintenance

For drives mounted above head height, the D-split cover can be removed downward, allowing worm wheel access from below without a platform lift. This is a significant safety and cost advantage for maintenance in elevated installations.

■ X-Type Downward Output Seal — Hydrostatic Head Rated

Identical to the WPX, the WPDX downward output oil seal is specified for the increased sealing pressure created by the oil column resting on the seal face in vertical downward orientation.

■ IEC Motor Frame 56–355 Compatibility

Direct motor mounting across the full WPDX size range (40–250 centre distance) accepts all standard IEC motor frames used in below-floor and overhead drive applications — no adaptor rings needed.

■ Continuous Duty Rating at Vertical Output Orientation

The WPDX is rated for continuous duty with the motor horizontal (IEC flange) and output vertical downward. Both bearing arrangements and oil circuits are validated for this operating configuration.

■ CE Certified, ISO 9001:2000 Quality System

Full CE marking and ISO 9001:2000 certification meets Australian Standard procurement requirements for mechanical power transmission components in engineered systems.

⚒ Below-Floor Motorised Conveyor Drives

Below-floor conveyor drives that need motorisation in situ — motor mounts direct to the IEC flange, output goes straight down through the floor plate — represent the archetypal WPDX application.

⚊ Inverted Motorised Agitators

Elevated position agitators where the motor mounts on the gearbox directly (IEC D-flange) and the agitator hangs below (X downward output) use the WPDX as their most compact motorised inverted drive solution.

☵ Sub-Floor Screw Feeder Drives

Industrial screw feeders with the drive motor and gearbox above the floor and the screw below use the WPDX to achieve the complete motorised sub-floor drive with one compact unit.

⚔ Overhead Track Systems — Motorised Head Drives

Power and free conveyor overhead track head drives where the motor must mount directly and the drive sprocket hangs below use the WPDX for direct IEC motor mounting and downward output.

⚛ Inclined & Elevated Mining Equipment

Mining applications where the drive station sits on elevated structure and the driven equipment hangs below benefit from the WPDX motorised downward output for both operational compactness and maintenance accessibility via the D-split housing.

✎ ISO 9001:2000 Certified

We hold ISO 9001:2000 International Quality System Certification — the first in our industry category to achieve this standard. Every WPDX 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.

“WPDX units drive our below-floor screw feeders at our iron ore processing plant. IEC motor mounts direct, output shaft goes down through the floor — exactly what we needed. Split housing means inspection can be done from floor level without accessing the sub-floor pit. Outstanding practical engineering.”

“We redesigned our overhead track drive stations using WPDX. Replaced gearbox + adaptor + coupling with a single unit. Drive station height reduced by 400mm. Commissioning time per station cut from 6 hours to 90 minutes. Exceptional return on the engineering change.”

“WPDX on our inverted pick-and-place actuator drives. Direct IEC motor mount and downward output gives us the most compact motorised inverted drive available in the standard catalogue. Build quality is consistent and tolerance stacks across size batches are within specification.”

“WPDX units in our elevated screw conveyor drive positions. The combination of IEC flange and downward output is exactly right for this application. Split housing is a real benefit for our maintenance schedule — reduces planned downtime by approximately 2 hours per gearbox service.”