Worm Gearboxes for Australian Industry
Aluminium, Cast Iron & Stainless Steel — Ships to Australia
Product Range
Purpose-Built for Every Application.
From lightweight aluminium worm reducers for automated production lines, to heavy-duty cast iron gearboxes engineered for Australian mining conditions, to hygienic stainless steel drives for food-grade environments — explore our full worm gearbox catalogue.
NMRV / NRV
Aluminium Worm Gearbox
Lightweight & compact. Ideal for packaging automation, conveyor systems and light-industrial machinery where installation space is limited and corrosion resistance matters.
WP / WPW / WPE
Cast Iron Worm Gearbox
Heavy-duty reliability for mining, agriculture and bulk material handling. Single and double-stage configurations deliver extreme reduction ratios where standard gearboxes reach their limits.
SSRV / SSVF / SSGM
Stainless Steel Worm Gearbox
SS304 throughout. Food-safe, corrosion-resistant and easy to clean. SSRV models are dimensionally identical to NMRV — a direct drop-in upgrade. SSVF offers a compact VF-style form factor. SSGM delivers the highest hygiene standard with six-face machined housings.
Applications
Industries We Serve
Worm gear reducers are the preferred drive solution across Australia's most demanding industrial sectors. Our range is engineered to meet the specific duty cycles, environmental conditions and compliance requirements of each application.
Mining & Quarrying
IP55-rated cast iron worm gearboxes built for the continuous duty cycles of underground conveyors, crusher feed systems and hoist drives in Australia's iron ore and coal operations. Self-locking output prevents back-drive on inclined conveyors.
Explore solutions
Agriculture
IP65 sealed aluminium and cast iron worm drives for grain augers, irrigation pump heads, seeder drives and harvesting equipment. Compact right-angle output suits tight installation geometries common in agricultural machinery.
Explore solutions
Food & Beverage
SS304 housings, food-grade lubricant, CIP-compatible. Meets Australian food safety requirements. SSRV, SSVF and SSGM stainless steel worm gearboxes are electrolytically polished for easy washdown and microbial compliance in processing environments.
Explore solutions
Water Treatment
Corrosion-resistant worm gear drives for aerator paddles, sludge scrapers, chemical dosing pumps and valve actuators. Suitable for continuous operation in high-humidity environments with aggressive media.
Explore solutions
Renewable Energy
Compact worm reducers for solar tracker azimuth and elevation drives, biomass feed screws and small wind yaw systems. High reduction ratios in a single stage reduce component count and maintenance complexity.
Explore solutions
Material Handling
Reliable torque output for roller conveyor drives, sortation systems, packaging lines and automated storage. Flange-mount and hollow-shaft configurations minimise installation time on OEM production equipment.
Explore solutionsWhy Ever-power
Built for Engineers. Backed by Experience.
Every worm gearbox we supply comes with the technical documentation your engineering team needs to specify, install and maintain with confidence.
Technical drawings available
Every product comes with dimensional drawings, torque tables and installation manuals for your engineering team — downloadable directly from each product page.
Custom ratios & configurations
OEM and modified specifications are available on request. We work directly with procurement engineers and systems integrators to deliver application-specific solutions.
English-language support
Our technical team responds in English within 24 hours. Reach us at [email protected] or via our contact page.
About Ever-power
Ever-power is a specialist supplier of worm gear reduction units serving industrial buyers across Australia. Our range spans aluminium NMRV series reducers, heavy-duty cast iron WP series, and hygienic stainless steel SS304 gearboxes — all manufactured to ISO9001 quality standards with CE conformity documentation available.
We work with maintenance engineers, OEM equipment builders and procurement teams to specify the right worm reducer for every duty — from small conveyor drives to high-torque mining applications requiring double-stage reduction ratios beyond 1000:1.
Learn about Ever-powerFeatured Models
Most Requested Worm Gearboxes
A representative selection across all product series — scroll to explore the range, or visit our full product catalogue for complete specifications and dimensional drawings.
Technical Overview
What Is a Worm Gearbox and Why Does It Matter?
A worm gearbox — also referred to as a worm gear reducer, worm drive gearbox or worm wheel speed reducer — is a type of right-angle gear unit in which a helical worm shaft meshes with a worm wheel to transmit torque between non-intersecting, perpendicular axes. The result is smooth, quiet speed reduction with high gear ratios achievable in a single compact stage.
The geometry of the worm mesh creates a natural self-locking characteristic: when the gear ratio exceeds approximately 25:1, the drive cannot be back-driven by the load. This makes worm gearboxes the preferred solution for inclined conveyors, valve actuators and hoisting equipment where load holding without a separate brake is required.
Key performance parameters
- Gear ratio range: single-stage 5:1 to 100:1; double-stage up to 3600:1
- Transmission efficiency: typically 60% to 90% depending on ratio and worm lead angle
- Output torque: from under 50 Nm (NMRV025) to over 2700 Nm (WPA250)
- Thermal power rating: a critical design parameter for continuous-duty applications
- Centre distance: the primary dimensional reference for all WP and NMRV series sizes
Choosing between single and double stage
Single-stage worm reducers cover the ratio range most applications require. When output speeds below approximately 30 rpm are needed — or when torque multiplication beyond what a single worm pair can deliver efficiently is required — a double-stage unit such as the WPE or WPWE series is the correct selection. Double-stage units achieve ratios from 100:1 to 3600:1 in a single gearbox housing, eliminating the need to chain two separate gearboxes in series.
Material Selection Guide
Aluminium, Cast Iron or Stainless Steel — Which Series Is Right for Your Application?
The correct housing material is determined by load, environment and hygiene requirements — not price alone. Selecting the wrong material series is one of the most common causes of premature gearbox failure in Australian industrial applications.
Aluminium NMRV series
The die-cast aluminium housing of the NMRV range provides a favourable strength-to-weight ratio, good natural heat dissipation and adequate corrosion resistance for most indoor industrial environments. With input power up to 15 kW and a size range from 025 to 150, the NMRV is the standard specification for packaging machinery, light conveyor systems, textile equipment and general-purpose automation.
Cast iron WP series
Cast iron provides superior rigidity and vibration damping compared to aluminium, making the WP series the correct choice for shock-load applications, heavy continuous duty and outdoor installations. The WP range extends to size 250 with output torques exceeding 2700 Nm. The cast iron housing also provides better sealing retention under high radial loads — important in mining and quarrying applications where axle loads from belt pulley overhang are significant.
Stainless steel SSRV, SSVF and SSGM series
Where washdown with cleaning chemicals, contact with food products or operation in a humid marine environment is required, stainless steel is the correct housing material. Our SSRV units use precision-cast SS304 housings dimensionally compatible with NMRV — enabling a direct upgrade without machine redesign. The SSVF series provides a compact VF-style right-angle form factor for space-constrained installations. The SSGM series takes hygiene further with six-face machined housings, eliminating recesses where bacteria can accumulate, meeting the most stringent Australian food processing standards.
Customer Feedback
Trusted by Australian Industry
Feedback from procurement engineers and maintenance teams across Australia's mining, food processing and agricultural sectors.
We replaced three failed European worm reducers on our grain conveyor with WPDA80 units. The dimensional drawings were accurate, installation was straightforward, and the units have run continuously without issue for over eight months.
The SSRV series was exactly what we needed for our CIP-validated filling line. Stainless throughout, correct reduction ratio off the shelf, and the technical team responded to our engineering queries within the same business day.
We specified WPEA double-stage units for a low-speed agitator project in Western Australia. The 1/400 ratio was available off catalogue, torque tables were provided upfront, and the units arrived well-packaged with all certification documents.
Project References
ISO9001 · CE Certified
Precision-Manufactured. Independently Verified.
Ever-power worm gearboxes are manufactured to ISO9001:2000 quality management standards. CE conformity documentation is available for all series. Our production facilities use CNC hobbing, precision grinding and coordinate measuring equipment to ensure dimensional accuracy and consistent tooth geometry across every unit.
We supply worm gear reduction units directly to Australian engineering firms, OEM equipment builders and industrial distributors. Custom configurations — including modified shaft directions, hollow-shaft outputs, IEC motor flanges and non-standard ratios — are available on request.
About Ever-power
Get in Touch
Ready to Specify Your Worm Gearbox?
Send us your application requirements — model, ratio, mounting configuration and duty cycle — and our engineering team will respond in English within 24 hours.
[email protected] · English-language support
