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PVC granulating machine, Two stage extrusion for PVC cable compounds, Hot-cutting pelletizer - details see: https://www.machineto.com/shjs-50-100-two-stage-pvc-granulating-extrusion-machine-10337004

>>SHJS series two-stage compounding extruder parameter

Model		Screw Dia D (mm)	L/D Ratio	Screw speed N (r/min)	Motor power P (KW)	output Q (kg/h)
SHJS50/100	SHJ50	50.5	24~48	500	37 / 45	100~350
	SJ100	100	7~20	85	30 / 37
SHJS65/150	SHJ65	62.4	24~48	500	55 / 75	200~500
	SJ150	150	7~20	85	37 / 45
SHJS75/180	SHJ75	71	24~48	500	90 / 110	400~800
	SJ180	180	7~20	85	45 / 55
SHJS95/200	SHJ95	93	24~48	400	200 / 250	700~1500
	SJ200	200	7~20	85	55 / 75

>> Processing:

1) Put PVC material into high mixer for compounding and refining, then the powder material through spiral feeder put into parallel twin screw extruder

2)Parallel twin screw extruder mixing material uniformly, then under the temperature of 140-160°Cfinished plasticizing and fully dispersing, in the last the final extrusive compounding material became molten mass (temperature is 130-140°C),final directly dropped into the large-diameter single screw extruder.

3)Single screw extruder finished 120°C melt extrusion granulation under the condition of low speed, high pressure and cooling state. The granulation temperature has fallen to 120-140°C, in this way can finish air-cooling die surface hot-cutting, and ensure pelletizing process isn’t sticky.

4)Granules produced by air-cooling die face hot-cutting, it's temperature will fall to 35-40°C after the cooling of secondary air cooling cyclone separator, then by air cooling extended vibrating sieve cooling, then the temperature decrease as room temperature to put into bunker to package.

>> Two stage extruder line: