No clutches and gearing are used for smoother, uninterrupted power, and no possibility of heat loss or slippage from inching operations The power losses over the entire engine speed range are minimalĬlutches and gearing are used, which can cause interruption of power Transmission loss is created in the torque converter and the clutch That’s just one of the benefits that material handling operators will appreciate. But, once the operator becomes accustomed to the unique nature of how acceleration works in a variable speed hydrostatic transmission, it’s a better overall experience.
It’s a subtle but intuitive way of driving a vehicle. For instance, without a clutch, the operator must become accustomed to a different - but in many ways advantageous - way of driving and operating a vehicle like a forklift.įor instance, the accelerator controls the flow of oil through the transmission, so releasing it automatically slows down the vehicle, with the braking pedal used for inching. This transmission design can deliver a lot of power fast - ideal capabilities for vehicles and machines that require impressive on-demand power in the mining, construction and material handling industries.Ī hydrostatic transmission also changes how operators drive a vehicle offering greater control and precision. The motor then transforms the pressure energy into mechanical energy. In simple terms, the pump converts mechanical energy into pressure. The movement of the fluids through a hydraulic pump drives the train of the vehicle. With a hydrostatic transmission, power is generated and transmitted by pressurizing and releasing fluid through a pump - rather than with a drive belt or gears. The biggest difference from conventional transmissions is the introduction of a pump, which is based on a basic engineering concept of using fluid under pressure to convert to mechanical energy. In this way, it’s more akin to an automatic transmission, although the design and operation of a hydrostatic transmission is much different. With a hydrostatic transmission, there are no gears to be changed, which means there is no clutch.
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When you think about how your typical vehicle transmission works, you might focus on the gearing -whether manual or automatic. And although it’s a relatively new advancement in forklifts, hydrostatic transmissions have a proven track record in much bigger construction and mining machines with similar high cycle/heavy load applications, such as wheel loaders, dozers and excavators. It’s a type of transmission that - although not suited for every kind of vehicle or machine - is ideal for the typical forklift tasks, environment and operators that are part of materials handling operations. From the first hydraulic lift introduced in 1920 to the standardization of pallets in the 1930s to today’s advanced, high-tech machines, forklifts are more powerful, maneuverable and efficient than ever.Īmong recent advancements in forklifts is the hydrostatic transmission.
Forklifts have evolved through more than 100 years of progress in innovative thinking and material handling.
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