Screw jacks aid expansion at BMW
A
David Brown Engineering product story
Edited by the Engineeringtalk editorial team
Jul 16, 2003
The installation of new Benzlers screw jacks at BMW's plant at Regensburg, Bavaria has helped increase production of the BMW 3 Series and has ended a maintenance problem.
The installation of new Benzlers screw jacks at BMW's plant at Regensburg, Bavaria has helped increase production of the BMW 3 Series and has ended a maintenance problem at the state-of-the-art facility.
The Regensburg plant is highly automated, and uses laser precision to achieve the renowned BMW build quality.
Benzlers Series BD screw jacks are used in the final assembly section of the plant in preference to hydraulic or pneumatic jacks because of their greater precision and consistency.
They are used to lift and lower the rear sections of the cars as they are carried by an electric overhead conveyor through the automated production line, up to point at which the rear section is married to the front end and engine.
The OEM-supplied Benzlers screw jacks in the plant had performed well over for 15 years but were not designed to achieve the faster working required under Regenburg's ambitious expansion plans, which has seen production increase from 200 units per day to 900 units per day.
Moreover, their age had created a maintenance problem in that it had become difficult to obtain a specific type of screw needed for the replacement of spindles.
Benzlers, a Textron Power Transmission company, supplied 82 BD58-L-N-4-B screw jacks to the Regensburg plant.
Benzlers mechanically operated screw jacks are built for linear raising, lowering, pulling, pushing, pressing or adjusting various types of load.
Their precise positioning features make them superior to pneumatic or hydraulic jacks in many applications.
Capable of withstanding high loads in demanding environments, they are compact, easy to integrate and can be fitted with almost any drive motor.
Synchronisation in systems is easily achieved with jacks that perform exactly the same movement, in exactly the same time, with millimetre-precise positioning.
Series BD screw jacks incorporate worm gear ratios designed not to back drive, high capacity taper roller and thrust bearings, and are lubricated for life.
They are capable of handling loads of 100t and offering operating linear speeds up to 300mm/s.
Available in several versions, Benzlers screwjacks are of a durable design and construction, compact, and easy to integrate.
There are no pipelines with pressure losses, no hydraulic oil spillage.
They are environmentally safe and almost maintenance free.
Benzlers application engineers are able to assist customers with calculations and installation proposals even for larger more complex lifting systems.
CAD files are available.
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