Screw and Cylinder for LLDPE, LDPE Film

• After-sales Service: If Has Quality Defects, a New One Will Be Made.
• Warranty: 180 Days
• Standard: DIN, JIS
• Technics: Cutting, Heat Treatment, Pta Welding, Casting
• Feature: Long Working Life
• Material: Alloy Steel
• Model NO.: 20mm-500mm
• Transport Package: Plywood Case
• Specification: 20mm-500mm
• Trademark: OULIN
• Origin: China
• HS Code: 84779000
• Production Capacity: 300-500 Sets Per Year

Product Description

Detail Information For Screw and Cylinder for LLDPE, LDPE Film:

Application: for film blowing extrusion, it is 100 % LLDPE. Another formulation is: 60% LLDPE (m.i. : 0,7   or 1  gr/10min) + 40% LDPE .(m.i.: 0,27  or  0,34 gr/10 min)

Customer's Requirement: good abrasive resistance, high output

Screw's quality: nitriding quality, 38CrMoAlA as base steel.

Barrel's quality: nitriding quality, 38CrMoAlA as base steel.


Detail Information For All Single Screw and barrel for Extrusion:

Main application: be used in extrusion for film, pipe, recycling, pelleting, sheet, profiles, rod and etc.

Specification: 
Diameter: Ø20mm-Ø500mm
L/D ratio: 15-53

Base material : 
SKD61
42CrMo
38CrMoAlA(JIS SACM645) from BAOSTEEL company.

Heat treatment:
Advance hardening and tempering
Nitriding treatment
Mid-frequency hardening

Technical Parameters:
Nitriding depth: 0.50mm-0.80mm                                
Nitriding hardness: HRC56-58                          
Surface roughness: Ra 0.4                  
Screw straightness: 0.015mm  
Hard chrome layer hardness: HRC58-60
Hard chrome layer thickness: 0.025-0.1mm
Alloy layer depth: 2mm-3mm
Alloy layer hardness: HRC56-64 


OULIN SCREW:  YOUR LOYAL PARTNER FOR SCREW AND BARREL