LASCO’s Unconventional Hammer Drive System

The newly developed LASCO hydraulic drive concept offers a significant improvement over conventional hammer drive systems. It uses two proportional valves instead of the known conventional blow valve or control piston, which is controlled by a pilot valve.

The new drive technology has only two connections compared to the previous hammer drive, with one proportional valve each for blowing and rising connected to the piston side. The use of a proportional valve for the upward motion opens up the possibility of operating the hammer with a variable stroke starting position instead of a fixed top dead centre.

By using a proportional valve to accelerate the ram, several control variables are available with which the acceleration phase can be controlled, including adjustable characteristic curves for opening and closing the valve, the actual opening and the controllable volume flow that can flow through it, and the time period for which it remains open.

Details:
LASCO Umformtechnik GmbH
www.lasco.com
Hall & Stall: 4/B-111

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