21.7mm Polymer Formula Pelletizer Plastic Pelletizing Machine Lab
Twin Screw Extruder
Characteristics of twin screw extruder
The screw arrangement are adopted “toy bricks” principle, which
assembly according to different machine L/D, different feeding way,
different barrel and screw combination, different screen changing
and cutting way, different electrical control mode, etc. it meets
the features of material and technological process. Give
consideration to the plastic universality commonality and
appropriability.
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.
Quick details
Power:5.5kw
Screw diameter:21.7mm
Screw material:38CrMoAL
Barrel diameter:22mm
Barrel material:38CrMoAL
Output:around2-15kg/h
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
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 | |
World famous brands of electronic components
1). Temperature control meter is Japanese RKC meter, intelligent type, double channel;
2). The inverter of extruder is ABB;
3). The low-voltage apparatus and the button adopt SCHNEIDER product;
4). AC contactor adopt SIEMENS product;
5). The main motor is SISMENS BEIDE;
6). The air switch adopts CHINT products. The solid-state relays are from American joint venture
brand;
7). The electromagnetic valve: adopt Denmark DANFOSS product.
Interlock control
1). The extruder motor is set up the current overload to achieve chain shutdown protection with electric control cabinet.
2). The control system of main machine motor is interlocked with control system of feeder motor as a way of protection mutually.
3). Transmission gearbox and lubrication system are interlocked for protection.
4). The extruder is set up the pressure overload to achieve chain shutdown protection with electric control cabinet.
5). The main motor is connected with the nylon pin of transmission gearbox so as to cut off the nylon pin when torque is overload.
Photo of Laboratory Mini Extruder PVC Pelletizing Machine Pvc Cable 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
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.
