Screw barrel for lamination film plant

Lamination film plant screw barrels are essential components in lamination film extrusion equipment, designed to melt, mix, and extrude polymer resins into thin films that can be laminated onto various substrates. These screw barrels play a crucial role in achieving uniform melt distribution, controlled cooling, and precise dimensional accuracy required for different lamination film specifications.

Specification: 

Screw diameter:Ø15-Ø300       Aspect ratio:15-46

Product type:
For different plastic products screw can be used: ordinary type, pin type, barrier type, separation type, exhaust type and so on. 

Base material:

1)38CrMoAlA(JIS SACM645)                                         2)42CrMo(AISI 4140)

Process:

Heat treatment Nitriding treatment

Technical Parameters:

Nitriding depth: 0.50mm-0.80mm                                Nitriding hardness: 900-1000HV               
Nitriding: <= Level 1                                                     Surface roughness: Ra 0.4                  
Screw straightness: 0.015mm                                       The hardness of the surface after chrome plating:≥950HV       
Chromium layer thickness: 0.025~0.085mm                Double alloy depth: 3mm

Specification:

Screw diameter (mm)	L/D	Screw speed	Output(kg/h) for RPVC	Output(kg/h) for SPVC	Motor power (kw)	Heating zones of barrel	Heating power of barrel	Centrel heigTER
30	15, 20, 25	20-120	2-5	3-8	2.2	3	4, 5	1000
45	15, 20, 25	17-102	6-15	9-22	5.5	3	6, 8	1000
65	15, 20, 25	15-90	15-37	22-55	15	3	12, 16	1000
90	15, 20, 25	12-72	32-64	40-100	24	3, 4	24, 30	1000
120	15, 20, 25	8-48	65-130	84-190	55	4, 5	40, 45	1100
150	15, 20, 25	7-42	90-180	120-280	75	5, 6	60, 72	1100
200	15, 20, 25	5-30	140-280	180-430	100	6, 7	100, 125	1100

Benefits:

Uniform Melt Distribution and Dimensional Accuracy

Lamination film plant screw barrels ensure uniform distribution of molten polymer resin within the extrusion die, resulting in consistent film thickness and dimensional accuracy. This enhances product performance and reduces material waste.

Enhanced Durability and Wear Resistance

Our screw barrels are manufactured from high-grade materials such as nitrided steel, bimetallic alloys, and tungsten carbide coatings, offering exceptional wear resistance and extended service life. This minimizes downtime and maintenance costs.

Optimized Processing Parameters

By optimizing screw geometry and material composition, our screw barrels improve extrusion parameters such as cooling efficiency, melt homogeneity, and line speed control. This enhances production efficiency and reduces energy consumption.

Customization Options

We offer customization options to meet specific customer requirements, including screw diameter, L/D ratio, flight geometry, material composition, and surface finishes. Our engineering expertise ensures that each lamination film plant screw barrel is tailored for maximum performance and reliability.