Dubbed 6630ORS, Allison’s latest off-highway series transmission is an evolution of its 6000 Series, which it says delivers increased durability and performance.
New engineering aspects include an internal damper and updated torque converter turbine, with what Allison describes as improved vane geometry as well as anodised surface treatment.
Allison says the new transmission is a response to growing demand for articulated haulers carrying larger payloads. It points to Bell’s new 55-ton-capacity articulated dump truck, which now incorporates the Allison 6630ORS – also on display at Bauma.
Additionally, Bell Equipment is showcasing its first B45E truck with an Allison 4700ORS transmission, which (along with its B40E and B50E models) will be moving from a sox-speed to the seven-speed transmission.
This brings improved gradeability due to the deep first range and smaller ratio steps, resulting in better performance and fuel efficiency.