Technically Specified Rubber (TSR) factories are equipped with fully automated processing line. All the TSR processing equipment namely Slab Cutter, Breaker, Creper, dry pre-breaker are designed to work 24 hourly in harsh and wet condition. The processing equipment are designed to last, same requirement applies on the main component – Gearboxes. The gearboxes must come with following criteria to fit into TSR related equipment:

  • Long life – to withstand the long operating hours and undisrupted production process. 
  • Heavy shock load feature – to withstand the shock load generated from the sand, steel or any other foreign object that may mix with the raw rubber during processing.
  • High radial load on input – it’s common to overtighten the input belting to prevent slippage during operation, many Gearboxes have their input shaft broken within months.
  • Excellent aftersales coverage and stock availability – Most of the TSR factory are located in remote area around South East Asia countries and the automated processing line doesn’t tolerate machine breakdown. Gearbox technician and spare parts availability is critical.



Sumitomo (SHI) Cyclo Drive Asia Pacific Pte Ltd setup the widest direct sales and after sales service network in South East Asia. With assembly factories in Singapore, Indonesia, Thailand, Malaysia, Vietnam and Philippines plus satellite offices around the main cities, we can assist our customer with fastest respond time. On the other hand, Sumitomo Paramax equipped with signature 25o gear pressure angle, designed to withstand high shock load during the TSR processing. Over the years, most of the TSR customers tried out different gearbox brands, Some of them even conducted one to one lifetime testing in their factory. As the result, Sumitomo Paramax always appear as the winner, some customers stated Paramax has double service lifetime comparing to other Gearbox brands. 



Sumitomo Paramax was the only specified gearbox brand for the top TSR producers of the world. It was trusted with its high reliability and second to none after sales service. Most of the small to medium TSR producers also make Paramax Gearbox as their preferred choice, making Paramax gearbox as the no.1 gearbox brand for TSR related application in the world.