The specialized screw design, optimized screw groove depth, and compression ratio ensure thorough plasticization and uniform mixing of the raw materials within the barrel. High-precision thermocouples ensure stable temperatures in all zones, preventing defects such as bubbles, streaks, and white haze in the sheet caused by localized overheating or low temperatures.
The TPU sheet mold utilizes a chrome-plated, mirror-finished T-die head. The flow path design is symmetrical and smooth, with no dead spots, ensuring uniform melt distribution. The die lip gap is fine-tunable (with an accuracy of 0.01mm), accommodating sheet thicknesses from 0.1 to 5mm. The TPU sheet extruder machine is equipped with a three-roller cooling and shaping unit. The roller surface is mirror-polished and the cooling water temperature is controlled by a constant temperature system. This allows for rapid cooling and shaping while ensuring a smooth, scratch-free surface. The flatness and thickness tolerance of the sheet (within ±0.03mm) are controlled by the pressure between the rollers.
| order number | name | quantity |
| 1 | Stainless steel screw feeder | 1 set |
| 2 | SJ 75-33/1 single screw | 1 set |
| 3 | MJ-400light panel mold | 1 set |
| 4 | BF-500X∮320 three-roll calender | 1 set |
| 5 | BF-1500-6 meter cooling bracket | 1 set |
| 6 | BF-500*∮220 rubber roller traction | 1 set |
| 7 | BF-500 friction winding | 1 set |
| 8 | Three-in-one water roller constant temperature machine | 1 set |
| 9 | DK-18 district extrusion production line electrical control cabinet | 1 set |
| 1 0 | Technical data on random equipment | 1 copy |
| Screw diameter: | 75mm (Zhoushan, Zhejiang) |
| Screw length to diameter ratio: | 3 0∶ 1 |
| Screw structure: | new high plasticizing screw, suitable for powder and granular materials. |
| Cylindrical screw material: | 38C rMoAIA nitriding treatment |
| Nitride layer depth: | 0.4-0.7 mm |
| Screw hardness: | HV> 740 |
| Cylinder hardness: | HV>940 |
| Screw speed: | 1 5-7 0 rpm |
| Motor power: |
45 kw (Shandong brand motor) Heating section 5 x 6 kw (aluminum casting + stainless steel hood) Cylindrical cooling 6 zones x 180w |
| Extrusion output: |
150kg/h Reduction gear Reddish face reducer Y-3 15 reducer (produced in Changzhou, Jiangsu province) Installation form belt drive or shaft joint direct connection Gear material 20CrMnTi carburized and quenched |
Mold material: high quality mold steel forging and tempering, hard chrome plating, polishing treatment
The plate head with a clothes hanger is 0.5-2mm thick and 400mm wide
Effective width of the mold is 400mm per set
TPU Sheet extrusion line three-roll calendering machine:1
A. Structure of the calendering machine: vertical three rolls (with roller safety protection device)
b. Number of rollers; three (produced in Qingdao)
C. Drum diameter: 320mm
d. roller length: 600mm
e. Wall thickness of the roller: ≥2 1 mm
F. Roll material: 45# steel is used, and hardening treatment is carried out, and the hardness can reach RC60-65
G. Roller surface treatment: mirror treatment
H. Drum structure: multi-layer composite rapid exchange system is adopted to ensure uniform and constant temperature of the drum.
I. Constant temperature medium of the roller: softened water
j. Three-roll control system: frequency conversion control is adopted to realize synchronous and independent speed control.
K. transmission system: 1.5KWx3=4.5kw. ensure the smooth operation of the three rollers.
A. Cooling rack length: 6 meters.
B. Roller: all made of stainless steel.
c. Roll spacing within the first two meters: 400mm.
D. The bracket is equipped with a cutting edge device: 1 set, and the cutting knife is made of high-quality alloy knife
e. Bearing: Adjustable bearing
| specifications | Ф220×600mm |
| material quality | Nitrile roller |
| transmission | reduction box |
| power | 2.2Kw |
| control | Wei Chuang frequency conversion control |
| Step up the way | pneumatic |
| Type Dual-station | flip type |
| Rewinding diameter | 500mm |
| Specifications | Paper tube core 3 inches |
Address
No. 88 Shandong Road, Beiguan Industrial Park, Jiaozhou City, Qingdao, Shandong Province, China
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