20mm Nitridged Steel Mini Extruder Twin Screw Extruder Machine Plastic Pellet Machine

Yongjie laboratory mini extruder SJSL20 is widely used among our customers of universities, research center, and factory R&D department for the testing of formula, compounding etc.

There are two electric control type, PID centralized contrial and SIEMENS PLC touch screen control.

Quick details
Power:5.5kw
Screw diameter:21.7mm
Screw material:38CrMoAL
Barrel diameter:22mm
Barrel material:38CrMoAL
Output:around2-15kg/h

Dryer:0.26kw

Pelletizer:0.75kw
Cutting way: water strand, air cooling strand also available
Warranty:one year
Lead time:45 days after deposit
Heating power:16kw
Heating zones: 7zones
Barrel length:120*7=840mm
Control type:PID or PLC

Gear box
Transmission gear: Parallel tri-axial structure is combination of reduction and matrix. The gear is made of high quality alloy (20CrNi2Mo). It had been treated by cementation heat process, the precision grade can reach6th. It guarantees the tooth surface is high speed, overloading, low noise and high torque.
Drive bearing: The brand of axletree: Japanese NSK.
Lubrication: Gear bearings in the gear box will be of oil immersed. There is hydraulic lubrication in the gear engagement and gear bearings.
Cooling: Lubricated cooling adopts shell and tube cooler and circulated water cooling method.

Screw
Diameter:￠21.7mm
L/D:40:1
Direction of rotation: Co-rotating
Screw & elements: W6Mo5Cr4V2 (6542#) high speed tool steel that had been treated by the vacuum hardening process with the hardness of the surface is HRC58-62.Molding through dedicated grinding machine. The cleanliness is much better than products out of traditional process.
Core axle: High quality alloy steel 40CrNiMo that with high tenacity and durability. It had been treated by the hardening and tempering process.

Barrel
1). Structure: The first section works for main feeding, and the sixth section is set up for vacuum venting, the others are blocked.
2). Material: The material of the barrel 38CrMoAlA, surface hardness: HV950-1050, depth 0.5-0.7mm 3). Heating: Adopt multiple step format electric heating. All zones are cast copper heater. The total heating power is 16KW and the max heating capacity every section can reach
500℃.
4). Cooling: Adopt soft water cooling system in the barrel and tap water cooling way outside barrel. The circulation pipes are made of stainless steel and the water inflow regulating valves are stainless valves.
The brand of electromagnetic valve is DANFOSS.
5). Length: 120*7=840mm

Scope of supply

Photo of Laboratory Mini Extruder

Main technical data of various model of twin screw extruder pelleitizing machine

Nanjing Yongjie Chemical &Machinery Equipment Co., LTD, founded in 2001, is specialized in R&D, production and service of plastic pelletizing machine. Our manufacturer covers an area of 20,000 square meters on our own land, with monthly output of machine 20sets. The factory certificated to CE, ISO9001:2008.

The company concentrates on research, development and production of “high level, accurate, sophisticated series of parallel co-rotating “cordwood” twin screw extruder, single screw extruder, two stage extruders and automatic plastic pelletizing machines. We have provided customers first-class products with “strong torque, high production, energy conservation and environmental protection products. The special designed screw structure has realized successfully for “one step shaping” on many kinds of products, and is widely used in aluminum composite plate, XPS foaming plate, WP plate, PP, PE sheet industry, etc.

“Yongjie machinery” with its outstanding product performance, stable quality, excellent integrated service, extensive experience in the industry, has exported extruders since 2005, and our machines have won good reputation among our clients in Southeast Asia, The Middle East, South America, North America, Europe and Africa etc.

“Everlasting Service, Palmary Quality.” is Yongjie people’s unremitting chasing aim.