Three Layer Blown Film Machine
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with Taiwan design extrusion screw and barrel
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This three layer blown film machine is capable of producing packaging films with a thickness ranging from 0.02-0.15 mm, made of LDPE, HDPE, LLDPE, or MLLPE. It is an ideal choice for food packaging, agricultural film, milk packaging, as well as meat packaging.
This film product is designed to provide excellent insulation against high temperature, humidity, wind, rain, abrasion, oxygen, and oil. The product quality can be altered by combining various ratios of different materials in each screw.
Technical Parameters
| Model | SJ-50*3/RG1000 | SJ-55*3/RG1200 | SJ-60*3/RG1800 | SJ-70*3/RG2000 |
| Screw diameter (mm) | 45/50/45 | 50 /55/50 | 60/65/60 | 65 /70/65 |
| Screw L/D ratio | 30:1 | 30:1 | 30：1 | 30:1 |
| Screw speed (r/min) | 110 | 110 | 110 | 110 |
| Power of main motor (kW) | 11/15/11 | 15/18.5/15 | 22/30/22 | 30/37/30 |
| Die size (mm) | ¢200 | ¢300 | ¢450 | ¢500 |
| Film thickness (mm) | 0.015-0.15 | 0.02-0.15 | 0.03-0.20 | 0.05-0.20 |
| Max. folding width of film (mm) | 1000 | 1200 | 1800 | 2000 |
| Max. capacity (kg/h) | 130 | 150 | 180 | 200 |
| Total power (kW) | 85 | 130 | 120 | 180 |
| Weight (kg) | 5500 | 6500 | 7500 | 9800 |
| Dimensions (L*W*H, mm) | 6.6*2.8*6.5 | 6.8*3*7 | 7*3.2*8.5 | 8.5*5*10.5 |
Main Components
- Screw (Taiwan Deign) 1. Material: 38 CrMoALA
2. Material elemental analysis:
C: 0.35～0.42 Si: 0.20～0.45 Mn: 0.30～0.60 S: ≤0.035 P: ≤0.035
Cr:1.35～1.65 Al: 0.70～1.10 Ni: ≤0.030 Cu: ≤0.030 Mo:0.15～0.25
3. Hardness of tempering: HB260-290
4. Depth of nitriding treatment: 0.4-0.7 mm
5. Hardness of surface: HV900-1050
6. Roughness of surface: 0.32 Ra
7. Linearity of screw: 0.015 mm/m
8. Bimetal screw: designed with a layer of tungsten carbide applied to the thread
9. Hardness of bimetal layer: HRC 58-62
10. Depth of bimetal layer: 2-3 mm
11. Bimetal layer elements: Fe, Ni, B, C, Cu, etc. - Main Motor (Siemens) 1. Speed: 1400 rpm
2. Motor power: 380V, 3-Phase, can be adjusted as needed
3. Service life: more than 10 years - Gearbox 1. Functions: reduces speed of transmission
2. Speed rate: 10:1
3. High strength hard gearbox boasting service life
4. Transferring requires lubrication oil
5. Low noise and longer service life - Heater 1. Ceramic heater heats up faster than stainless-steel alternatives
2. Its lifespan is no less than 5 years
3. It can better retain heat, resulting in lower power consumption
4. Made from high-quality ceramic and heating wire - Rotary Die Head (Taiwan Design) 1. Made from #45 steel, providing robust performance
2. Surface treatment to improve transparency of films
3. Taiwan CNC's production capabilities ensure great accuracy in terms of the distance between the lips. - Fast Screen Changer 1. Ensure that workers are employed efficiently
2. Minimize the risk of material leak
3. Easy to change the filters, saving time and human labor - Double Vent Air Ring Using two lips instead of one can cool the film more quickly, thereby increasing the machine's output.
- Electric parts Omron temperature controller and LG inverter
- Double Rewinder 1. The use of an air shaft can reduce the amount of manual labor required, thus enhancing efficiency and productivity
2. Inverters can extend the life of a motor and help ensure its efficient operation
3. PLC Control
4. Automatic changer optional
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