Hydraulic circuit diagram, direct

Fig. 43. Hydraulic circuit diagram ol a vertical lead cable press with direct jnimp drive, as per Fig. 27...

Fig. 82 illustrates the hydraulic circuit diagram of an oil-hydraulic extrusion press operated by a variable-delivery pump (see p. 212). The control stand accommodates a hand-wheel connected linkage which sets the press to advance or return, as well as two rotary slide valves which serve to lock and shift the die-carrier with the die. The linkage acts on a servo-control (see p. 215), which is arranged directly at the pump the servo-control is connected to a geared pump, also called pilot pressure pump. 

A simplified diagram of the hydraulic circuit is shown in Fig. 10.4. When the direction-reversing valve A is in the position shown, the sUding valve B moves to the right This allows hydraulic fluid into the left of the table cylinder which is attached to the saddle. The fluid moves the piston, and the table attached to it, to the right... 

A simplified diagram of the hydraulic circuit is shown in Fig. 10.4. When the direction-reversing valve A is in the position shown, the sliding valve... 

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