LITOSTROJ RAVNE LTD. Innovations, experience, tradition and power integrated in our products – a perfect combination to customise your reliable production process.
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Koroška cesta 14, 2390 Ravne na Koroškem, Slovenia
Litostroj Ravne Ltd: Mechanical and hydraulic presses and press line equipment.
Rolling bolster
Rolling bolster is a very common mechanical press upgrade, which makes easy, safe and quick die (tool) change. Rolling bolster is a wheeled motorized table of a press. Its movement is limited by its tracks. Tracks are usually set up to allow one direction or “T” movement.
The usage of rolling bolster:
When changing die (tool), the die’s upper plate is unclamped. Rolling bolster is than driven together with the die out of the press. This makes possible crane manipulation of the die (tool) from above. Die (tool) can easily and quickly be changed. Time of press non-productivity can be shortened by using two rolling bolsters. In this case the tool is already clamped to the second moving bolster when die (tool) change procedure starts. Time of press non-productivity is shortened only on time necessary for driving the first rolling bolster out of the press and driving the second rolling bolster with new die (tool) in. If using automatic die (tool) clamp system for upper die (tool) plate, production can start in less than a minute after rolling bolster is locked on its working position.
