Description:

HIPS sheet plant screw barrels are essential components in HIPS sheet extrusion equipment, designed to melt, mix, and extrude HIPS resin into flat sheets with high impact resistance and dimensional stability. These screw barrels play a crucial role in achieving uniform melt distribution, controlled cooling, and precise thickness for different HIPS sheet 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 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.