PARALLEL SHAFT HELICAL GEARBOXES

The Parallel Shaft Helical Gearbox series is of a modular design based on the DIN Standard. They are available in single, double, triple, or quadruple reduction ratios and can be used horizontally, vertically, up or down, both ends or turned upside down for either left- or right-hand applications, thus reducing application differences and minimising spare holding (special lubrication systems required).

This standard range of Gearboxes features power ratings up to 4,800 kW with ratios up to 450 kW, along with thermal capacity to manage 50 degrees C ambient temperatures.

Manufacturing is carried out on the very latest CHC machining centres at the Donly factory, with machine tools from Switzerland, Germany, Austria, UK and USA, guaranteeing the highest level of precision productivity available in the world. Full traceability of all raw material, manufacturing processes, inspection and assembly are documented for every Gearbox and are available on request. This includes chemical analysis of raw material before machining, gear cutting, full immersion gas carburizing heat treatment of gears (spie pieces), gear grinding and laboratory gear measurement.

Every Gearbox assembly is “double inspected” with records kept of gear tooth contact/markings, gear backlash and bearing clearances. This is followed by load testing and full load testing as required to guarantee vibration level, temperature rise and noise.

At Donly all Gearboxes are fitted with grease purged labyrinth seals for ultimate protection in harsh environmental conditions with central greasing point for maintenance ease. Remote condition monitoring fitted as required.

All Gearboxes carry a 3-year warranty along with a network of service centres around Australia. The experience and service capability is second to none with some 20 years of history with the world’s largest mining and minerals processing companies.


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The team at Donly Engineering are here to answer any enquiries.

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