Allison Transmission has unveiled its 6630ORS, the newest off-highway series fully automatic transmission.
Launched at Bauma, this transmission is an evolution of the 6000 off-highway series, and provides increased durability and performance.
It contains a new internal damper and updated torque converter turbine with improved vane geometry and increased oil flow lubrication, while an anodised surface treatment gives increased durability for harsh operating environments.
A series of modifications to the 6000 range’s transmission’s low and reverse planetary gear assemblies has extended this model’s lifespan in high torque or continued reverse range operations such as mining.
The transmissions are also available with a heavy duty retarder rotor.
These upgrades to the new transmission have been fitted into the 55 tonne payload Volvo A60H, which was on display at Bauma 2016.