Ntsia Hlau & chim rau Extruder
khoom Nthuav dav
Diameter of screw: φ15-φ500
L / D piv: 15-55
thawj ntev: 10000mm
Hardness tom qab hardening thiab tempering: HB280-320
Nitriding hardness: 950-1100HV
Nitrided txheej tob: 0.5-0.8mm
Nitrided brittleness: Tsawg tshaj li qib 2
Deg roughness: Ra0.4
Linearity ntsia los ntsia cov: 0.015mm / m
Bimetallic txheej tob : ≥3mm
Bimetallic hardness: HRC60-72
Hard-chrome plating hardness tom qab nitriding: ≥950HV
Chrome-plating txheej tob: 0,025 ~ 0.10mm
High-quality alloy steel
38CrMoAlA (JIS SACM645)
42CrMo (AISI 4140)
Hard chrome plating
Alloy powder spray welding
Five Steps to place an order:
Step 1. Inquiry.
Send us diameter and length(or L/D ratio) of screw, outer diameter of barrel.
For screw of Chinese injection machine, please send us the machine model and diameter of screw(We have a lot of drawings for screw of injection machine).
If you have drawing or draft, please send us! That will save a lot of your time!
Step 2. Quotation & Contract
Our manager will send you a quotation.
After confirming the quotation by you, we will send you invoice and contract for payment.
Step 3. Drawing
Our specialist will design drawings and send you for confirming.
Drawings are made by Auto CAD.
Step 4. Production
Production time from 18 to 30 days, depend on complexity of screw and barrel.
Step 5. Inspection & Delivery
After production we will check the hardness and sizes, send you photoes of screw and barrel.
With rich experiences in shipment we can offer the best delivery plan for you.