How to achieve the concrete pump pendulum for the change?
Such as the German Shi Weiyin pump is the case, of course, it is given to the hydraulic pilot oil is not an electrical signal.
3. Proximity switch or stroke switch is a commutation signal to the pendulum, swing swing in place, from the pendulum to the main cylinder a commutation signal.
But nothing more than three types 1. close to the switch or stroke switch to the main cylinder for the signal at the same time to the swing cylinder a commutation signal.
2. Proximity switch or stroke switch is a commutation signal to the sequence valve, and then the first valve to give a commutation signal to the main cylinder to a commutation signal.
The main cylinder on the concrete pump commutation / swing cylinder commutation is by the proximity switch or trip switch to complete.
