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China Suppliers Factory Plastic Sheet Extruder for PP PE PS Roll BC120-1000 with Advanced Screw Technology
Machine introduction
2. Sieve changer part
The Sieve changer adopts hydraulic double-station pulling type, model 180mm Sieve change port, heating power 6kw.
3. Melt metering pump part
Pump body drive connection mode: cardan shaft connection drive.
Pump body reducer: high strength hard tooth reducer, no noise.
Pump body control mode: frequency conversion speed regulation, and equipped with melt pressure sensor display pressure.
Closed-loop control system: by adjusting the pressure before the pump to automatically control the speed of the screw host, to achieve the melt pressure balance, greatly improve the stability of extrusion.
4. Die
Die forming: T coat hanger type
Effective width of die: 1000mm (single-side adjustable range 0-200mm)
Die performance: Using 40Cr material after modulation, chrome plating, polishing and other processes, with smooth flow path, mold opening and closing uniform, smooth adjustment, low energy consumption
Die heating power: 15kw (built-in stainless steel heating tube, five-zone temperature control)
5. Three-roll calender part
Roller specification: φ350mm*500mm*500mm, length 1000mm
Roller structure: three-layer structure, outer layer by intermediate frequency treatment, surface hardness HRC55-58
Roller surface: chrome plated, coating thickness 0.07-0.10mm after calenzing, surface roughness Ra≤0.4μm
Roller accuracy: radial runout ≤0.01mm, cylindricity < 0.01mm
Roller cooling method: water or oil cooling medium, the internal cooling channel adopts spiral trend, good cooling effect, high sheet transparency
Roller drive motor power: 4kw*3 (variable frequency speed regulation)
The form of roller drive: three rollers with gear reducer transmission, hard tooth surface gear reducer synchronous transmission, using analog module control
Roll pitch adjustment: worm gear pitch adjustment, screw skew block fine adjustment limit
Longitudinal walking: electric walking positioning device, equipped with a reducer with a motor
6. Cooling and trimming device
The cooling part is composed of one φ180mm*1000mm roller and seven φ80*1000mm aluminum alloy guide rollers
The trimming device is equipped with two cutting knives
7. Traction winder
Traction steel roller φ180mm*1000mm, traction rubber roller φ180*1000mm, coated and polished
Traction reducer and motor power: hard face helical gear reducer with chain drive, 3kw
Opening and closing form: cylinder pneumatic control
Winding method: double station winding, air expansion shaft winding sheet, torque motor tension control, can be flipped unloading coil
8. Control part
Console control: movable man-machine interface, touch screen form
Temperature control: PID control of temperature module
Working flow
Raw material particles / scraps
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Screw heating
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Die extrusion
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Three-roll forming
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Cool + trim
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Coil finished product
Technical parameter
| Parameter Item | Specification Details |
|---|---|
| Model | BC120-1000 |
| Applicable material | PP, PE, PS |
| Overall power | 220kw |
| Heating power | 110kw |
| Molding sheet thickness | 0.3-2.0 mm |
| Sheet thickness accuracy | +/- 0.015 mm or less |
| Effective width of sheet | ≤850mm |
| Work efficiency | 350kg/h |
| Machine weight | ≈10T |
| Machine size | 13 m * 1.5 m * 2.5 m |
| Power source | Three-phase four-wire, 380V, 50Hz |
| Screw diameter | 120mm |
| Screw length-diameter ratio | 35:1 |
| Main motor power | 110kw |
| Net changer size | 180mm |
| Melt metering pump model | 200cc（optional） |
| Melt metering pump motor power | 7.5kw（optional） |
| Effective width of die head | 1000mm |
| Effective width of three rolls | 1000mm |
| Three-roll diameter | Φ500*500*350mm |
| Roller motor drive power | 3.5kw*3 |
Applications
PLA, PVC, PET, PS, PP as raw materials, changing the mold at one machine to manufacturing lids, covers, trays, plates, boxes, food and medical trays, etc.
Structure diagram
| Code | Name | Code | Name |
|---|---|---|---|
| 1 | Winding part | 8 | Heating part |
| 2 | Traction part | 9 | Screen changer |
| 3 | Electric box control cabinet | 10 | Die head |
| 4 | Main motor | 11 | Three roll calender |
| 5 | Main reducer | 12 | Cooling rack |
| 6 | Feed hopper | 13 | Edge cutting knife |
| 7 | screw | 14 | Side material winding |
List
| Name | Quantity (Set) |
|---|---|
| Heat extrusion screw | One set |
| Hydraulic quick net changer | One set |
| T-hanger die head | One set |
| Three roll calender | Independent three-roll*0ne set |
| Cooling belt traction device | One set |
| Mold temperature machine | One set |
| Trimming device | One set |
| Scrap take-up device | One set |
| winder | Double Stations*One set |
| Electrical control cabinet | One set |
Frequently Asked Questions (FAQ)
What raw materials can this sheet extrusion machine process?
This machine is compatible with a wide range of thermoplastic materials, including PP, PE, PS, PLA, and PVC. By simply changing the mold, you can manufacture different types of products such as lids, covers, trays, plates, boxes, and medical packaging.
What is the thickness range and accuracy of the produced sheets?
The machine produces sheets with a molding thickness ranging from 0.3 mm to 2.0 mm. It achieves high precision with a thickness accuracy tolerance of +/- 0.015 mm or less.
How does the closed-loop control system improve extrusion stability?
The closed-loop control system automatically regulates the speed of the screw host by adjusting the pressure before the melt metering pump. This balances the melt pressure and significantly improves the overall stability of the extrusion process.
What are the specifications and features of the three-roll calender?
The calender uses three rollers with a specification of φ350mm*500mm*500mm and a length of 1000mm. The rollers feature a three-layer structure with high-frequency treatment (hardness HRC55-58), chrome plating, and spiral internal cooling channels using water or oil as a medium for optimized cooling and sheet transparency.
What type of winding system is equipped with the machine?
The traction winder is equipped with a double-station winding system using an air expansion shaft. It features torque motor tension control and can be flipped for convenient unloading of finished coils.
What are the key parameters of the sieve changer and melt metering pump?
The sieve changer is a hydraulic double-station pulling type with a 180mm port and 6kw heating power. The melt metering pump is a 200cc model (optional) powered by a 7.5kw motor, utilizing a cardan shaft connection and frequency conversion speed regulation.