(2 177 Mixing Screw Element Materials For Choice:
1.Abrasion application
Tool steel and PM-HIP material
2.Corrision application
Nitrided steel and PM-HIP material
3.Abrasion and Corrosion application
PM-HIP material
4.Other materials
Stainless Steel


(3) 177 Types of the Screw Segments

(4)Standerd Screw Element and Kneading Block


(5) 177 Mixing Screw Element​ Manufacturing procedure


(6)Other Products of Our Company

Shaft	Screw Element	Barrel

2. Heat treatment by Ourself
As we all know, heat treatment is very important in the screw production process. In order to ensure the quality of products, Joiner has purchased professional heat treatment equipment to produce, so that we can control the construction process by ourselves. In China, we are the only company that does heat treatment by ourselves, and the heat treatment of screw components made by Nanjing factory is processed by outsiders, so the quality of products can not be completely guarantee.


(7)Processing Route Tracking List
Each process requires inspection . The production personnel shall check whether it’s meet the requirements of the drawings by themself. If it meets the requirements of the drawings,it shall be submitted to the inspection personnel for inspection. After pass the inspection to the next process personnel processing.

(7) 177 Mixing Screw Element Packing & Delivery
Packing Details : Standard packing for Joiner Extruder twin screw extruder parts/extruder spare parts
Delivery Time: Shipped in 30 days after payment for extruder screw and barrel.
To product antirust processing ,and then use the paper package,bubble,fixed in the wooden case,after confirm the delivery.


8. 177 Mixing Screw Element Testing Reports for Our customer
We will send Inspection reports for every our customer.
1.General Dimension Inspection Report
2. Material certificate for customer.