Mono-layer and multi-layer sheet extrusion system for up to 5 layers
Processing capabilities: PE, PP, PS and other thermoplastic materials
Packing industrial, Stationery, Decoration,etc
Extrusion Process of Extrusion Machine for Processing HDPE Sheet
Plastic pellets are fed into the barrel of the extruder and conveyed by the screw, the heaters which are outside of the barrel of the extruder as well as the friction from the rotation of the screw melt the plastic pellets into a sheet mold and then placed on a three-roll calender, the produced sheet goes through the bottom and middle roll,wrapping around back of the middle roll and then back to the top roll or other methods as shown in sheet calender picture, these rolls are helpful to take the heat out of the sheet, after the sheet comes off the roll,it moves down the conveyor to the end of sheet line where the edge trimmer cuts the sheet to width as well as a sheet shear cutter to length.
Machine Illustration of Extrusion Machine for Processing HDPE Sheet
1. Single/Two/Three layers is producible
2. Extruder screw adopts special design with efficient mixing function,equal plasticization and high capacity.The mater of barrel and screw is 38CrMoA1A, the hardness of nitride is 740HV.
3. Mould uses double throttling design to ensure the sheet thickness accurate.
4. Temperature can be precisely controlled within ±1 °C and can control the plasticization process,the sheet thickness and smoothness.
5. Three-roll calender: horizontal, vertical or tilted arrangement, adjustable roll gap.
6. Independent roller temperature control system is able to make sheet thickness uniformity.
7. Cutting machine can trim the sheet with accurate length and quantity.
8. Winder is equipped with high quality torque motor,it can adjust rewinding speed and tension.
9. This sheet production line has automatic meter counter to set the length of sheet.
Plastic sheets produced from this type of extrusion equipment are sturdy,yet remains somewhat flexible.Versatile and reliable downstream equipment.
Zhangjiagang Techno Machinery Co.,Ltd. is specialized in manufacturing and exporting different kinds of plastic extrusion and plastic recycling machinery.Our company aims of developing based on quality and creating benefits for customer.
Our main machines include the following: 1)plastic pipes production line 2)plastic profiles production line 3)plastic sheets production line 4)plastic pellets production line 5)plastic mixers 6)plastic pulverizer 7)cryogenic pulverizer ..........
Our main markets: Central America, Mid East, South America, Eastern Europe, North America ..........
a. Engineers available to service machinery overseas
b. Guarantee Period: 12 Months
c. During this guarantee period,TECHNO will provide spare parts without any charge in case of quality discrepancy caused by us. If the malfunctions are caused by your incorrect operations,TECHNO will provide the buyer spare parts at cost price.