WPS Single Speed Cast Iron Worm Reducer — WP Series

Standard worm reducers accept the motor input from below the housing — the A-type configuration. The WPS reverses this: the S-type input shaft enters from above, enabling the motor to be mounted vertically overhead. This single configuration change reduces the drive train footprint significantly in applications where floor space is constrained but overhead clearance is available.

Internally, the WPS uses identical worm gear geometry, FC20+ cast iron housing, and tin-bronze worm wheel to the WPA, delivering the same 2,371 Nm maximum output torque and 95°C continuous operating temperature. All 12 frame sizes (40–250 mm) are available, covering 0.12–33.20 kW input power.

✉ Demander un devis | À propos d'Ever Power

■ S-Type Top-Entry Input — Motor Overhead

The WPS input shaft enters from above the housing centreline, positioning the motor vertically overhead. Reduces lateral drive footprint in confined installations where floor space beside the drive is the limiting constraint.

■ Identical Torque Rating to WPA — Same Internals

The S-type input designation refers only to shaft entry direction. Worm gear geometry, worm wheel material, and torque capacity are identical to the WPA at every frame size.

■ 12 Frame Sizes: 40–250 mm

Covers 0.12–33.20 kW input power and 17–2,371 Nm output torque across the same 12 standard sizes as the WPA, allowing direct substitution in drive train redesigns requiring overhead motor positioning.

■ FC20+ Cast Iron — Outdoor & Industrial Duty

The same FC20+ grey cast iron as the WPA handles outdoor agricultural, pump, and processing environments without corrosion vulnerability of lighter aluminium housings.

■ Oil Level Calibrated for S-Type Orientation

The oil volume for each WPS size is specified for the S-type mounting orientation. The internal oil circuit is tuned to ensure adequate worm gear lubrication splash with the input shaft entering from above.

■ Standard WPA Motor Coupling Compatibility

The WPS input shaft dimensions are identical to WPA — any IEC coupling hub or motor adaptor designed for the WPA fits the WPS without modification.

☷ Agricultural Equipment — Narrow Frame Machines

WPS motor-overhead configuration reduces machine width on seed drills, row crop cultivators, and spreader drives where lateral clearance between row units is the critical design constraint.

⚙ Pump Station Drives — Compact Layouts

In pump stations where multiple units share a common base frame, WPS overhead motor positioning allows closer centre-to-centre pump spacing than side-mounted motor configurations.

⚒ Conveyor Head Drives — Limited Aisle Width

Where aisle clearance limits lateral motor projection, WPS positions the motor overhead without affecting the drive output or requiring custom frames.

⚊ Processing Equipment — Space-Efficient Builds

Food processing and packaging OEMs use WPS to minimise machine footprint while maintaining standard IEC motor compatibility — no custom motor mounts required.

■ Certifié ISO 9001:2000

Chaque unité est fabriquée selon la norme de gestion de la qualité ISO 9001:2000. L'inspection des matières premières, les contrôles en cours de production et les tests finaux sont tous documentés et traçables grâce au numéro de série de chaque unité.

Marquage CE — Directive européenne 2006/42/CE relative aux machines

La conformité totale aux normes CE confirme le respect des normes européennes de sécurité et de conception pour la transmission de puissance mécanique, favorisant ainsi l'exportation vers les marchés de l'UE, du Royaume-Uni, de l'Australie et de la Nouvelle-Zélande.

■ Tests avant expédition : bruit, fuite, couple

Chaque unité subit trois tests avant expédition : niveau sonore inférieur à 68 dB(A) à charge nominale, test d’étanchéité sous pression de 30 minutes et transmission du couple à ±5% de la valeur nominale. Les unités non conformes sont remises en état et ne sont pas expédiées.

■ Certification des matériaux FC20+

Les pièces moulées des carters sont vérifiées par des certificats d'usine pour la nuance FC20 : résistance à la traction minimale de 220 MPa, dureté de 160 à 200 HB. Un contrôle par ultrasons des défauts est effectué sur les pièces de taille 135 et supérieure.

“WPS-100 on our seed drill drives. Vertical motor mount freed up 300 mm of lateral machine width — allowed us to reduce the frame width and improve the machine’s row spacing geometry.”

“Used WPS-80 on our bottling line where overhead clearance was better than floor space. Top-entry shaft worked perfectly with our standard IEC motor. No modifications needed.”

“WPS-135 drives our compost turner. Overhead motor keeps the gearbox output accessible for oil changes without moving the motor. Simple and effective design.”

“Good performance in our irrigation pump drive configuration. S-type orientation allowed us to reduce the pump station width significantly. Solid cast iron construction has held up well to outdoor conditions.”