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China Plastic Sheet Extruder for PP PE PS Roll BC120-1000 - Reliable Suppliers and Factory Equipment
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
➔
Screw heating
➔
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 | 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*One 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 are compatible with this extrusion machine?
This sheet extrusion machine is compatible with PP, PE, PS, PLA, PVC, and PET raw materials or scraps. By changing the molds, it can manufacture various plastic products such as lids, covers, trays, plates, boxes, food, and medical trays.
What is the thickness range and accuracy of the produced sheets?
The machine produces molding sheets with a thickness range of 0.3 mm to 2.0 mm, achieving a precise sheet thickness accuracy of +/- 0.015 mm or less.
How does the melt metering pump improve extrusion stability?
The melt metering pump features a closed-loop control system. By measuring and adjusting the pressure before the pump, it automatically regulates the speed of the screw host to achieve a consistent melt pressure balance, which greatly enhances extrusion stability.
What are the specifications and cooling methods of the three-roll calender?
The calender rollers have a specification of φ350mm*500mm*500mm and a length of 1000mm. It uses a three-layer structure with intermediate frequency treatment (HRC55-58 surface hardness). The internal cooling channels use a spiral flow system with either water or oil cooling media to ensure high sheet transparency.
What control system is used to operate the machine?
The control system features a movable human-machine interface (HMI) console in touch screen format, combined with PID temperature modules for precise thermal control across all heating zones.
How does the traction winding system work?
It features a double-station winder with air expansion shafts for winding sheets, controlled by torque motor tension. It also utilizes a pneumatic cylinder system for opening and closing, allowing for efficient flipped unloading of finished coils.