Film Plant Screw Barrel

Film plant screw barrels are essential components in film extrusion equipment, designed to melt, mix, and extruder polymer resins into thin films of varying thicknesses and properties. These screw barrels play a crucial role in achieving uniform melt distribution, controlled cooling, and precise dimensional accuracy required for different film specifications, including single-layer and multi-layer films.

Detail Specification

Technical Information for single screw barrel
Main Base materials	1.38CrMoAlA (SACM645)	Main Alloy Materials	1. Ni-based alloy/Deloro alloy
	2. SKD-61 (Special Tool Steel)		2. Tungsten carbide/Wolfram carbide
	3. 42CrMo (Ultrahigh StrengthSteel)		3. NiCo-based alloy
	4. DC53 (Cold WorkDie Steel)		4. Fe-based alloy
	5. W6Mo5Cr4V2 (High-SpeedToolSteel)		5. Co-based alloy
Processing Technics	1. Heat treatment	Technical parameters	Nitriding layer depth:0.5-0.8mm
	2. Quenching		Nitrided hardness:900-1000HV
	3. Nitriding treatment		Bimetallic layer depth:3 mm
	4. Bimetallic alloy welding for screw		Bimetallic hardness:57~69HRC
	5. Bimetallic alloy centrifugal casting for barrel		Hard-chrome plating hardness after nitriding:≥950HV
	6. Hard-chrome electroplating		Chrome-plating layer depth:0.03-0.09mm
	Linearity of screw:0.015mm		Surface roughness:Ra 0.4

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 height
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

Our Benefits

1. Precision Melt Control and Mixing

Injection molding machine screw barrels ensure precise melt control and thorough mixing of additives, colorants, and fillers into the polymer melt. This results in uniform melt quality and enhanced part aesthetics.

2. Extended Service Life and Durability

Our screw barrels are manufactured from high-quality materials, including nitrided steel, bimetallic alloys, and tungsten carbide coatings, to withstand abrasive wear and corrosion. This ensures extended service life and reduced maintenance downtime.

3. Optimized Injection Molding Parameters

By optimizing screw design and material selection, our screw barrels enhance injection molding parameters such as cycle time, shot size consistency, and part dimensional stability. This improves overall production efficiency and reduces scrap rates.

4. Customization Options

We offer customization options to meet specific customer requirements, including screw diameter, length-to-diameter ratio (L/D), flight geometry, material composition, and surface treatments. Our engineering expertise ensures that each injection molding machine screw barrel is optimized for maximum performance and reliability.