Laboratory Polymer Single Screw Extrusion Test Unit

Product Description

Principle of single screw extruder: The last thread of material port is called conveying section In the past, the old extrusion theory believed that the material here was loose. Later, it was proved that the material here was actually a solid plug. That is to say, the material here was a solid like a plug after being extruded. Therefore, as long as the transportation task was completed, it was its function.
The second section is called compression section. The volume of screw groove changes from large to small, and the temperature should reach the plasticizing degree of materials. The compression produced here is from conveying section 3 to one, which is called the compression ratio of screw - 3:1. Some machines also change, and the plasticized materials enter into the third section.
The third section is the metering section, where the material maintains the plasticizing temperature, just like the metering pump to accurately and quantitatively transport the melt material to the machine head. At this time, the temperature should not be lower than the plasticizing temperature, generally slightly higher.
SXT-I single screw extruder is mainly used for extruding soft, hard PVC, polyethylene and other thermoplastic plastics. It can process a variety of plastic products, such as film, pipe, plate, ribbon, etc., and can also be used for granulation in combination with corresponding auxiliary machines (including molding head).
Main application of high speed single screw extruder
Pipe extrusion: suitable for PP-R pipe, PE gas pipe, PEX cross-linked pipe, aluminum plastic composite pipe, ABS pipe, PVC pipe, HDPE silicon core pipe and all kinds of coextrusion composite pipe.
Plate and sheet extrusion: suitable for extrusion of PVC, pet, PS, PP, PC and other profiles and plates. Other kinds of plastics extrusion, such as wire, rod, etc.
Extrusion of profile: adjust the speed of extruder and change the structure of extrusion screw, which can be used to produce PVC, polyolefin and other plastic profiles. Modified granulation: suitable for blending, modification and strengthening granulation of various plastics
This equipment is a small extruder for laboratory use, with its own motor and data measuring device, can be used independently, installation of different molds and with other auxiliary machines can be completed in the laboratory casting film, blowing film, pressure light or flow type impurity measurement, plastic granulation and other functions.

Photograph	Performance Index	Performance Parameter
	Control interface	HMI
	Motor	AC inverter
	Motor power	1.5 kW
	Reducer	TCG
	Speed ratio	1:15
	Screw speed	100 r/min
	Screw Diameter	20mm
	Screw L:D	25 :1
	Compression Ratio	2.4:1or 3.6:1
	Speed Range	1-100 rpm
	Heating	Electrical Heating,PID,4 Zones
	Temp control system	RKC from Japan
	Heating zone	4 Zones
	Max. Temperature	350ºC
	Heating power	3 kW
	Temperature sensor	J type thermocouple
	Cooling	compressed air cooling
	Pressure Accuracy	0.5%F.S
	Pressure Range	0.1 ~ 100 Mpa
	Output	1 -5 kg/ hr
	Feeding speed	Manual adjustment
	Feeding	Screw metering feed
	Power supply	3×380V,50/60 Hz ,+N +PE
	Dimension(L×W×H)	1000×400×350 mm
	Weight	150 kg
	Dies head (Select two from four)	Capillary Die (InnerФ1.0,Ф1.27,Ф2.0 L:D:20/1,30/1,40/1)
		Flat Die( L×W:60×1.5 mm, 0.8 kW)
		Pipe Die(Inner Ф10, Outer Ф12.5)
		Coating Wire Die (Core Ф1.5,Die outlet Ф4.0)

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