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[China]
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Contact name:
Beijing Silk Road Enterprise Management Services Co.,LTD |
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45mm single screw extruder with strand pelletizing system for plastic extrusion
Advantages of the high efficiency single screw extruder:;
Compare to traditional single screw extruder, COWIN has greatly improved the design and know-how of the single screw extruder, making the capacity almost double while the energy cost is half. This not only increases the efficiency of extruder itself, but also save production cost for end-user.
Advantages:
Modular Single Screw Design
In order to solve the problem of some abrasive material processed by single screw, COWIN has originally innovated modular single screw extruder. The whole screw Is composed by small pieces of different screw element like twin screw. With this new design, customer doesn’t have to change the whole screw if it is worn by aggressive materials, instead, you just need to change some pieces of the screw elements where is seriously worn. This will save your cost too much.
The other advantage of this modular screw design is, since the screw is modular like twin screw, then we can install different pieces with different functions. This will help you to get a better plasticizing and dispersion products.
Main Application :
Specification of the extruder:
| Raw materials dealing units |
| Vacuum loader |
Motor power: 2.2kw Storage tank: 20L Made of stainless steel Capacity: 100-400kg/hr Located on the top of the feeder.
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| Volumetric feeder |
Motor power:1.1kw, Feeding mode: by single screw, Material contact parts are made of 304 stainless steel Volume:30L, Capacity: 100-400kg/hr Inverter: Siemens M330
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| Compounding unit |
| CSETM45 single screw extruder |
Main motor: Siemens AC motor, 55KW；Siemens M440 inverter Power transmission: Elastomer pin
Gearbox: High safety factor design; Latest steel alloy material for gears applied with special heat treatment and manufactured at high precision level; NSK bearings and imported seals applied, Special lubricating system equipped combined with immersing and forcing solutions;
Extrusion line: Screw Diameter: 45mm,L/D:36:1； Maximum Screw speed:150rpm； Screw material:38CrMoAlA. Nitride processing. HV950-105. Barrel material: 38CrMoAlA, Nitride processing, HV950-1050
Temperature controlling: Heating system: electric heater, total heating power with approx.18kw (No.1 Section cooled by water)； Cooling system:Air cooling fan, 0.18kw for each.； Temp. controller:Siemens Steel base: Welding base with special pads;
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| Vacuum pump |
Vacuum Pump Mode: Water Ring Vacuum Pump Material Baffle Plate:40Cr； Vacuum Pump Power:1.5kw； Vacuum Degree:Max.-0.095MPa With Vacuum Gauge and dual Filtering Pot
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| Screen changer |
| Manual screen changer. |
| Strand pelletizing line |
| Extrusion die plates |
Material:40Cr,with nitrifying heat-treatment; The strand outgoing hole dia.: 3.2mm Stainless steel plate unit for protection equipped; Cross-link fast open die head. Electrical heating Heating power: 2kw
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| Water bath |
300mmX3000mm, S.S bath With movable supporting frame, over flow port.
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| Air knife |
Motor power:2.2kw Double blow Two PU leading rollers Made of stainless steel.
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| Pelletizer |
Max output: 300kg/hr No. of strands: 24 Standard pellet: 3x3mm Cutter dimension: 120x100mm,32 tooth Effective rotation speed:350-1000rpm Haul off speed:0-96m/min Motor power: 3kw Rotated cutter clearance: 0.08-0.12mm Leading roller: PU Inverter: Siemens M330
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| Vibrator |
Motor Power: 0.2kw Capacity:200-300kg/hr Discharging Gap: 3, qualified pellets, huge pellets, small pellets Made of stainless steel
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| Air blower and silo |
Blower motor: 2.2kw Silo: 1000L Made of stainless steel With support frame.
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| Control cabinet |
| Cabinet for extrusion line |
Low-voltage electrics: Siemens Speed regulator: Siemens inverter； Temperature controller: Siemens Pressure sensor: Dynisco from USA Solid state relay: Crydom from USA Middle relay: OMRON from Japan Air switch: Siemens Inter-locked design Feeder interlocked with main extruder Oil pump inter-locked with main extruder Over pressure, over current alarm
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| Siemens PLC and touch screen |
Siemens S7-300 PLC Siemens TP900 touch screen All parameters will be shown on the touch screen Feeder start, stop,rpm,amper Extruder start,stop, rpm,amp,pressure,temperature Cooling fans working condition Pelletizer start,stop,rpm Air knife start,stop Vibrator start,stop Air blower start,stop Formula record Operation date record
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Model of Single Screw Extruder:
Service:
Before-sale
Introduce products and applications detain
Recommend suitable solution
Provide with reference in formation
Offer lab for test
During manufacturing
Provide with layout and engineering conditions
Inform the project processing status
Offer other documents
After-sale
Provide with installation ,commissioning and training
Register and record customer information
Offer spare parts
Provide with necessary technical support for new application
Visit customer regularly and correct information
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