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Crane specialist Street Crane Company provide new 120 tonne crane for Voith Paper

A new 120 tonne crane, from overhead crane specialist Street Crane Company, is part of a major investment, exceeding one million pounds at Voith Paper Limited’s Manchester manufacturing plant. The new crane ensures efficient and safe loading and unloading of the grinding machine. This will grind and produce perfect geometry and balance in paper machine rollers of up to 115 tonnes.

Street Crane has a long association with Voith Paper, having supplied an 80 tonne overhead travelling crane (OTC) in 1997. The new crane will be used for loading and offloading vehicles and positioning rollers onto a CNC controlled Waldrich Siegen roll grinder and up-rated IRD balancing machine. This requires precision movement and so an auxiliary ten tonne hoist is provided to permit rotation and final manoeuvring of the load.

Major structural elements of the crane include twin box-beam girders for rigidity with eight-wheel carriages to spread the load. Hoisting is achieved via a heavy duty crab unit based on a twin scrolling open barrel hoist design that ensures the hook follows a true vertical lifting path. Programmable microprocessor controllers, along with digital frequency inverters on the motor drives, provide smooth acceleration and deceleration for safe transport of the load with no load swing.

The overhead crane features a range of safety systems including audible alarm, flashing amber light and an anti-collision system. Like all cranes from Street Crane, the brake operates on the first reduction shaft in the gearbox so that the load is held securely even in the unlikely event of a motor failure. A wire free radio remote control allows the operator to adopt the best position for safety and visibility. A conventional pendant control is also provided as a back up.

Street Crane won the order against strong competition from other crane makers. Commenting on the installation Steve Walls, Voith Paper’s works manager noted, "The 80 tonne crane installed by Street in 1997 and serviced by their sister company SCX has given us no trouble whatsoever. The relationship has always been good and we are happy to be working with them once again on this major development for our Manchester business."

Street Crane manufacture a complete range of electric overhead travelling cranes (EOTC’s) and hoists to meet every need up to 200 tonnes safe working load. Engineering and production is based at their Chapel-en-le-Frith factory on the Derbyshire/Cheshire border.

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