Active Member
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[China]
Address: No.9 Lanxia Road, Moling Industrial Concentration Area, Jiangning District,211111, Nanjing, China
Contact name:
Nanjing Yongjie Qixin Machinery Equipment Co.,Ltd |
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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
| No. | Contents | Unit | Quantity | Marks |
| 1 | Twin screw extrusion system | set | 1 | |
| 1.1 | Feeding system | set | 1 | 0.25kw |
| 1.2 | SJ-20 Twin screw extruder | set | 1 | 5.5kw, 40:1 |
| 1.3 | Vacuum venting system | set | 1 | 0.75kw |
| 1.4 | Water cycling system | set | 1 | 0.55kw |
| 1.5 | Manual screen changer | set | 1 | |
| 2 | Electric cabinet | set | 1 | |
| 3 | Water stand auxiliary system | set | 1 | |
| 3.1 | Die head | set | 1 | |
| 3.2 | Water trough | set | 1 | 1 M |
| 3.3 | Dryer | set | 1 | 0.26KW |
| 3.4 | Pelletizer | set | 1 | 0.75KW |
| 4 | Documents | set | 1 |
Photo of Laboratory Mini Extruder 
Main technical data of various model of twin screw extruder
pelleitizing machine
| Model type | Series | Barrel Diameter (mm) | Screw Diameter (mm) | Screw L/D | screw speed n(r/min) | Main motor power(Kw) | Screw torque T(N.m) | Torque rating (T/A3) | Typical production capacity (kg/h) |
| SJSL20 | A/B | 22 | 21.7 | 32-44 | 500/600 | 4/5.5kw | 30/30 | ||
| SJSL-36 | A/B/C/D | 36 | 35.6 | 32-48 | 400/600 | 11/15/18.5/22 | 125-225 | 4.6-8.3 | 30-120 |
| SJSL-51 | A/B/C/D | 51 | 50.5 | 32-52 | 500/600 | 45/55/75/90 | 405-680 | 5.1-8.5 | 120-400 |
| SJSL-65 | A/B/C/D | 63 | 62.4 | 32-64 | 500/600 | 75/90/110/132 | 680-1200 | 4.8-8.5 | 180-750 |
| SJSL-75 | A/B/C/D | 72 | 71 | 32-64 | 500/600 | 110/132/160/250 | 995-1890 | 4.6-8.7 | 300-1200 |
| SJSL-95 | A/B/C/D | 94 | 93 | 32-64 | 500/600 | 250/315/450/550 | 2260-4510 | 4.7-8.7 | 700-2500 |
| SJSL-135 | A/B/C/D | 135 | 133 | 32-48 | 400/500 | 550/750/900/1200 | 6200-10800 | 4.4-7.7 | 1550-6500 |
Company Brief
Nanjing Yongjie Qixin Machinery Equipment Co.,Ltd Founded in 2001, covers an area of 20,000 square meters on our own
land, with monthly output of machine 20sets. Our factory is
certificated to CE, ISO9001:2008.The company concentrates on
research, development and production of “high level, accurate,
highly sophisticated series product 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
