... controller,with help of blowing system,recycle material Automatic Rotary PVC Air Blowing Injection Molding Machine EK8-12P1.EK8-12P ... of mechanical movements, covering ranges from injection, feeding, disc-rotating to mould-clamping, could be inputted into PLC, ... type proportional controller so as to control mould-clamping pressure, injection pressure and feeding pressure.3 unique mechanical structure ...