3 layer coextruder stretch film machine

Ruian Ruipai Machinery Co.,Ltd. is one of the leading China 3 layer coextruder stretch film machine manufacturers, welcome to buy cheap 3 layer coextruder stretch film machine from our factory.

   

Specifications & Technical Data:

Name	3-Layers Stretch Film Machine A/B/C
Model	RP-70-90-55-1500
Configuration	High standard
Re-winder width	1500mm/500mm×3rolls
Stretch film capacity	150-250kg/h
Working Principle	Extrusion casting method
Suitable Material	LLDPE ,ADDITIVE
machine linear speed	200M/minute

Specification:

● Thickness adjustment scope：6μm-50μm；

● Equality percent of thickness：≤±5%；

● Width of effective film：1500mm or 3*500mm(max) ;

●Cast stretch film structure：A/B /C Co-extruded;

●The fit material: LLDPE；

●250kg/h；Max Stretch film capacity：250kg/h.

A Extrusion System

● RP-70-32 Single screw extruder, one set(adhesive layer：A)                                                                                                                                                              

●Screw diameter：Φ70mm，

●the L/D ratio 32：1；

●Screw length: 2240mm

2.1Extrusion machine with high production efficiency, low energy consumption, good plasticizing effect, strong adaptable raw materials.

2.2 In order to ensure that the film has good politicization effect, the extruder adopted specially designed screw and barrel. Screw is designed with shear section and mixed refine section, to reduce the fluctuation of pressure and the production and improve the melt evenness;

2.3The barrel inner hole after grinding and polishing have the advantage of high precision, the material flow equilibrium, shorten the material retention time in the barrel and the color switching time ;

2.4 Barrel material: 38CrMoAL,Alloy, heat treatment processing technology form, its surface after nitriding treatment have the advantage of wear resistance, corrosion resistance and long service life etc.

●The host motor is Siemens Brand 22KW one set；

●Speed adjust by Delta inverter , one set ；

● Gear box: Hardened tooth surface reducer, National standard #173 (low noise), 1piece;

2.5 Gear material: Alloy steel;

2.6 Gear processing technique: Tooth surface high-frequency quenching, hardened tooth surface precision grinded by gear grinding machine.

2.7 Gear box lubricating method: Forced oil loop lubrication.

2.8 Gear box cooling method: Forced water cooling loop oil temperature

●Extrusion Hopper：Automatic vacuum feeder 1 Set.

B Extrusion System

● RP-90-32 Single screw extruder , one set                                                                                                                                                                     

●Screw diameter：Φ90mm

●Screw length: 2880mm

3.1Extrusion machine with high production efficiency, low energy consumption, good plasticizing effect, strong adaptable raw materials.

3.2In order to ensure that the film has good politicization effect, the extruder adopted specially designed screw and barrel. Screw is designed with shear section and mixed refine section, to reduce the fluctuation of pressure and the production and improve the melt evenness;

3.3 The barrel inner hole after grinding and polishing have the advantage of high precision, the material flow equilibrium, shorten the material retention time in the barrel and the color switching time ;

3.4 Barrel material: 38CrMoAL,Alloy heat treatment processing technology form, its surface after nitriding treatment have the advantage of wear resistance, corrosion resistance and long service life etc.

●The host motor is Siemens Brand 37KW one set；

●Speed adjust by inverter, one set ；

● Gear box: Hardened tooth surface reducer, National standard #225(low noise), 1piece;

3.5 Gear material: Alloy steel;

3.6 Gear processing technique: Tooth surface high-frequency quenching, hardened tooth surface precision grinded by gear grinding machine.

3.7 Gear box lubricating method: Forced oil loop lubrication.

3.8 Gear box cooling method: Forced water cooling loop oil temperature

●Extrusion Hopper：Automatic vacuum feeder 1 Set.

C Extrusion System

● RP-55-32 Single screw extruder, one set(adhesive layer：C )                                                                                                                                                              

● Screw rod diameter：Φ70mm，

● the L/D ratio 30：1；

● Screw length: 1760mm

4.1 Extrusion machine with high production efficiency, low energy consumption, good plasticizing effect, strong adaptable raw materials.

4.2 In order to ensure that the film has good politicization effect, the extruder adopted specially designed screw and barrel. Screw is designed with shear section and mixed refine section, to reduce the fluctuation of pressure and the production and improve the melt evenness;

4.3 The barrel inner hole after grinding and polishing have the advantage of high precision, the material flow equilibrium, shorten the material retention time in the barrel and the color switching time ;

4.4 Barrel material: 38CrMoAL,Alloy heat treatment processing technology form, its surface after nitriding treatment have the advantage of wear resistance, corrosion resistance and long service life etc.

●The host motor is Siemens Brand 15KW one set；

●Speed adjust by Delta inverter , one set ；

●Gear box: Hardened tooth surface reducer, National standard #146 (low noise), 1piece;

4.5 Gear material: Alloy steel;

4.6Gear processing technique: Tooth surface high-frequency quenching, hardened tooth surface precision grinded by gear grinding machine.

4.7Gear box lubricating method: Forced oil loop lubrication.

4.8 Gear box cooling method: Forced water cooling loop oil temperature

●Extrusion Hopper：Automatic vacuum feeder 1 Set.

Host Extruder Configuration

●Automatic temperature control: 27 zones；

●PLC control system: Shanghai flexem, re-winder control, roller changing，melt pressure ,Digital meters count control together；Easy operation；

●Heating: Ceramic and stainless steel heating ring；

●Heating shell is made of steel security casings；

● 加热装机功率：>80kw；  Heating Power: >80Kw；

Extrusion Die head

●Extrusion mould: one set

●Die head regulating mode: manual adjustment；

●1800mm；Die head width：1800mm；

●0.8mm；The gap of die head：0.8mm；

●The construction of divider: A/B/C；

●Hydraulic screen changer 3 sets （including hydraulic station）

● Melt pressure sensor , three pieces 

●mould with vacuum box ,exhaust hot air , let the film have more cooling effect , exhaust hot air, let the film become more transparent. Driven Power: 2.2KW (2 sets)

●film electronic side locking machine，one set ,

Casting Cooling System Cooling Roll

●Design: increased the cooling roller diameter, internal use of dual loop design, built-in double layer two-way channel

●The diameter of cooling roller （Frosted roller） diameter (the film cooled by the first roller) is Φ600mm，which length is 1800mm. Driven power: 2.2 KW free maintenance horizontal traction reduction Motor

●Driven Speed adjusted by Delta Inverter

● The Roller cleaning device: cleaning by a rubber roller , which function : suck the cooling roller surface water and leaning the hot fog. Let the cooling roller reach much better cooling effect and let the film become more even and transparent.

 ● The second diameter of cooling roller diameter (the film cooled by the Second roller) is Φ370mm，which length is 1800mm. Driven power: 3.7 KW free maintenance horizontal traction reduction

Motor

●Driven Speed adjusted by Delta Inverter

●Cooling principle：The universal joint barrel left to rigRP water cooling；

●Cooling System with the function of forward and backward；go up and down device

Winding System

● The third diameter of re-winder roller is Φ420mm , which length is 1800mm.

●Winding roll: Driven power: 2.2KW free maintenance horizontal traction reduction

Motor 

●Driven Speed adjusted  by Delta Inverter

● The third diameter of re-winder roller is Φ420mm，which length is 1800mm. Driven power: 2.2 KW free maintenance horizontal traction reduction Motor

●Driven Speed adjusted by Delta Inverter

●Roller changing method：High-precision drive system, automatic non-stop roller changing；

●Roller changing cutting method：Invisible serrated knife to cut off；

●Cutting driver：Brake deceleration control of motor and steam-driven approach control；

● Rolling meters：meter accounting ,Alarm；

● Control system: PLC control( Shanghai flexem brand ), Electromechanical gas integration design；

●Winding roll: W-type air shafts, 2 pieces；

● Mechanical automatic roller changing: automatic online push the finished production, greatly reduce the labor intensity, the maximum improves the work efficiency；

●Stretch film automatic unloading and device, one set.

●Stretch film automatic unloading and automatic loading/wear paper tube device, one set.

●Electric vehicle moving forward,backward,left&rigRP.

●Driving power :200W

●Rising &decline system , one set

Automatic edge material recycling unit

●Traction motors from the pull：3NM Torque Motor;

●High-speed grinding power：Horizontal motor 1.5kw;

●Auto-feeding：High-speed centrifugal fan;

●Forced feeding：Helical structure;

Auxiliary Equipment

●Automatic feeding device：3 sets.

● Glue pump device： 1 set .

                                                                                                

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