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    Crankshaft Balancing Machines

    • Crankshaft Balancing Machines
    • Crankshaft Balancing Machines

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    Crankshaft balancing machines can be supplied with open rollers or a white metal shell to provide the correct solution for supporting the crank whilst being rotated to determine the unbalance correction required. Rotating the crank can be by a cardan drive shaft with quick release coupling / powered rollers, belt drive or hook drive - this depends on application, flexibility required and automation level.

    Correction for crankshafts is usually by drilling into the cranks counterbalance webs, this can be carried out either dry or wet dependent on automation level, material and cycle time. Universal Balancing balancers can have a single gantry type drill unit or multi-units when high throughput is required.

    Cranks that require "bob" weights to simulate a proportion of piston and con-rod dynamic mass can either have quick fit "bob" weights fitted or can be balanced in a dedicated fixture that simulates the compensation amount of a bob weight. This method is usual for automated processes where the time taken to fit and remove bob weights is a problem.

    Fully automated systems can be multi station or have work handling systems integrated such as XYZ pick and place, conveyor/pallet load or robot systems.

    The UNI-44 Windows™ based measuring system has built in auto-vote software that determines the best possible correction solution to allow the part to be corrected in the least amount of holes. This software is used on all cylinder cranks.

    At pre-machining stage cranks sometimes are required to be mass centred thus the raw crank is spun and centred to the lowest unbalance offset. Then a machining centre is machined at each end. This allows all subsequent machining operations to be constructed off the centres that have been produced hence the lowest initial unbalance at the final crank balance.

    Contact Universal Balancing now to discuss how their crankshaft balancing machines can help to improve productivity and product quality.