Speed control circuit of single acting cylinder

Speed control circuit of single acting cylinder

The speed control circuit of single acting cylinder is shown in Figure 1 below. Figure a can adjust the two-way speed, and figure B can achieve fast return by using the fast exhaust valve, but the return speed can not be adjusted.

Figure 2 below shows other speed control circuits of single acting cylinder, figure a and b show speed control of piston rod extension, figure C and d show speed control of piston rod return, and figure f shows speed control of cylinder extension and return by using two one-way throttle valves. As shown in Figure e, the one-way throttle valve and fast exhaust valve are used to realize the speed control of cylinder slow in and fast out.