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Industrial Washing Machines (IWM) selected RA Rodriguez’s Framo Morat Linear Chain system to provide a robust push-pull mechanism for a system designed to wash and dry bulk transport containers.

IWM is a family business that offers a range of standard washing and sanitising systems to manufacturers across the world.

A large proportion of the company’s business however also comes from its ability to design and manufacture special-purpose equipment to satisfy unique washing needs.

In this instance, its Framo Morat Linear Chains were specified for a bespoke machine built to handle containers up to 1,000 x 1,200 x 1,200mm.

The size of these vessels require them to be loaded onto the machine’s receiving station by fork lift truck, whereby the first of the Framo linear chain actuators pushes the item, weighing up to 300kg, into the washing cabinet.

Its counterpart at the other end of the machine is responsible for pulling the clean and dry vessel from the cabinet and onto a discharge platform, ready for unload by fork lift.

This actuator offered the necessary strength to do the job, while enabling the design to remain compact and relatively simple to control.

The chain and drive units are identical on the push/pull systems with the only difference being the grabbers we designed for the respective functions.

RA Rodriguez reports that its Framo Morat Linear Chain has been widely used for applications calling for long strokes where space is at a premium.

The special profile of the chain, with interlocking fingers at one end, enables it to be rolled up for efficient storage in one direction and to form a rigid thrust device in the other.

The device provides high positioning accuracy, constant stroke speed and shock-free motion, which, for IWM, was vital for the smooth transfer of the container into a very precise rotating drum.

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