| 摘要 |
<p>The concrete cutter has two actuating cylinders (1,2) connected to a fluid circuit which supplies a high fluid flow to one cylinder in one mode and a lower fluid flow to both cylinders in another mode. The fluid circuit is provided for the fluid expelled from the smaller chambers of the cylinders to be recycled into a larger chamber (2a) of one cylinder (2) to allow the rapid extension of the cylinder rods in a rapid displacement at a low force. The small chambers can be placed under pressure simultaneously when the cylinder rods reenter the cylinders under a high load with a large working power.</p> |
