Laboratory Plastic Single Screw Rotary Extruder

• Customization: Available
• After-sales Service: a Lifetime
• Warranty: 1 Year
• Model NO.: EP-20
• Plastic Processed: PVC
• Product Type: Extrusion Molding Machine
• Feeding Mode: One Feed
• Assembly Structure: Separate Type Extruder
• Screw: Single-Screw
• Engagement System: Intermeshing
• Screw Channel Structure: Non Deep Screw
• Exhaust: Don′t Exhaust
• Automation: Automatic
• Computerized: Computerized
• Screw Diamter: 20mm
• Screw L/D: 25/1
• Screw Types: Many
• Die Heads: Many
• Screw Material: 38 Crmoala
• Compression Ratio: 2.4/1
• Transport Package: Plywood
• Trademark: Hapro
• Origin: China
• HS Code: 9024800000
• Production Capacity: 100/Year

Product Description

Laboratory Single screw Extruder can be integrated by main unit and single screw extrusion unit. That can be used to simulate real production process in the laboratory. Matched well with different die heads ,many functional simulation test in laboratory environment with Capillary Die,Pipe Die,Flat Die,Coating Wire Die and Other auxiliary equipments .The screw with different diameter, length-diameter radio and compress ratio can be chosen depending on the tested materials.
 

• Equipment composition

Single screw platform is consist of the Drive device, Feeding device, Barrel ,Screw and Dies parts, etc.The screw is the heart of the extruder, divided into the charging section (solid conveying zone), compression section(melting zone) and the homogenization section (the melt conveying zone) three parts.Put the material into the hopper ,under the action of a rotating screw,material was pushed on to direction of the nose.Material endures strong shear, mixing and calendering in the barrel,In this process, Meanwhile, the physical states of material the evolve from glass state to the high elastic state ,eventually become sticky flow pattern .
 

• Principle

Simulate Production Realistically on a Laboratory Scale ,single screw measuring extruder serves for testing the extrudability of polymers and for studying thesis occurring in research and development as well as in practical application. The single screw extruder system allows a complete instrumentation of the extruders for the control and development of raw material. Different screws, die heads, and downstream equipment fulfill all kinds of extrusion tasks.
 

• Application

In the measuring extruder , the sample material is plastified under practice-oriented conditions and extruded through the die head. All measuring values such as torque, melt temperature, melt pressure are recorded continuously and represented in the form of tables and diagrams parallel to the current test. The extrudate is tested for various criteria:
• Uniform plastification, gloss, gels
• Color dispersion and color matching
• Transparency and formation of streaks, e.g. with transparent materials
• Swelling and contraction behaviour
• Segregation of individual recipe components of a compound at the die and/or at the screw`s tip
(e.g. titanium dioxide)
• Output per unit of time, etc.
 

Drive device

It is mainly used to complete the plastic plasticizing and transportation by uniform rotation for torque setting,Servo motor control screw torque, pre-set torque from touch-screen.

Feeding device

Material depend on its own gravity from the hopper into the screw barrel .According to the properties of material production and processing technology conditions, adjust the volume of feed speed and extrusion in order to achieve the balance.                           

Barrel

It contains materials and screw.


E = feed opening of the extruder
L1= feed section
L2= compression section
L3= metering section
L4= mixing section  
 

Screws

For each measuring extruder, different screws are available.The screws are made of special steel, the flight basis and the lands are chromium-plated. Single- and multi- stage screws with various compression ratios and different lengths are available for testing a large range of materials.


a,It is suitable to extrude materials for example : PP  PE  PVC
b,It is suitable to extrude materials for example : PVC  PP  PE  PC  ABS etc.
c,It is suitable to extrude materials for example : HDPE  LDPE etc.
d,It is suitable to extrude materials for example : PP  PE  PA  PET etc.
e,It is suitable to extrude materials for example : PE  PP  PC  PA etc.
f,It is suitable to extrude materials for example : PVC  PP  PE  PC  ABS etc.
g,It is suitable to extrude materials for example : PP  PE  PA  ABS etc.
h,It is suitable to extrude materials for example : PA  PC  PBT  PET etc.
i,It is suitable to extrude materials for example : PP  AS  PBT  PE etc.
j,It is suitable to extrude materials for example : PP  PE  ABS  PS etc.

Die

The Hapro die heads can easily be connected to the different extruders The die heads can be interchanged quickly and easily. They are heated electrically and have a separate control circuit. The die heads can be disassembled for cleaning. Various die heads are available for specific measuring tasks.


 

• Technical Parameters: 

Photograph	Performance Index	Performance Parameter
	Screw L:D	25:1
	Screw Diameter	20 mm
	Barrel Diameter	50 mm
	Compression Ratio	2.4:1
	Screw material	38 CrMoAlA
	Temp control system	RKC from Japan
	Temp sensor	J type thermocouple
	Heating	Electrical Heating/4 Zones
	Heating power	3.0 kW
	Max. Temperature	350ºC
	Feeding speed	Screw metering feed
	Cooling	Air Compression
	Pressure range	0~100 Mpa
	Output	Granular 0.8 -10 kg/ hour Powder 0.45 -11 kg/ h
	Dies head	Slit die  (1.5mm deep x 60mm wide)
		Capillary Die (1.5mm deep x 20mm wide x 160mm length)
	Weight	250 kg
	Dimension (L×W×H)	900×570×1250 mm