Place of Origin:	Sichuan,China(Mainland)
Screw Design:	Double-Screw
Application Machine :	Twin screw extruder
Hardness:	58-60HRC
Brand Name:	Joiner
Surface Treatment:	Polishing/Sand Blasting
Advantage:	High precision/High Wear resistance
Materials:	WR45/WR5/W6Mo5Cr4V2/WR14/WR13
Screw Diameter	45mm
Warranty:	1 years
Range :	Φ15.6-Φ430mm

 We manufacture screw and kneading segments for co-rotating twin screw extruders ranging from 15.6 mm to 350 mm and over. Our manufacturing specializes in segmented screws for twin screw extruders and is optimized for flexible order handling.

Co-rotating twin screw elements for 

-APV             -KOBE                   -OMC
-Buhler          -KraussMaffei        -Theysohn
-Buss            -Berstorff-                -Toshiba
-Clextral        -Labtech                  -USEON
-Coperion     -Lantai                     - others
-JSW             -Leistritz    
-Keya            -Maris

Types of the Screw Segments

* Convey Screw Segment
* Mixing Screw Segment
* Kneading Block & Disk
* Transition Screw Element
* Deep groove transfer element
* Screw element for side feeder
* 1-flighted,2-flighted,3-flighted screw elements


Standard Screw Element and Kneading Block 



We offer a broader choice of materials:

For wear application
Tool Steel : W6Mo5Cr4V2
PM-HIP material : SAM10,SAM26,SAM39,CPM10V,CPM9V

For corrision application
Nitrided Steel: 38CrMoAI
PM-HIP material : SAM26,SAM39,CPM10V,CPM9V

For wear and corrision application:
PM-HIP material:SAM26,SAM39,CPM10V,CPM9V

Other materials
Stainless Steel: 316L,C276 etc.
By working closely with customers in choosing optional materials,we can minimize wear and tear and associated costs

Quality Control

1.All the materials are purchased from the domestic brands or Eurpean twin-screw specialty materials suppliers,which tested by elemental analysis and metallurgical inspections to ensure the quality.

2.The internal splines is checked by the spline plug to ensure interchangeability of the elements

3.All components are machined by CNC machines to ensure the shapes and tolerances of the elements

4.Adopt the European high-speed steel powder processing technology,and do the treatment according to the strict heat treatment process to ensure the wear and corrosion performance same as the foreigh brands.

5.Perfessioal technical team can not only provide timely and accurate mapping sample design but also the combination of elements of technical services.

6.There are various prepared technical information and the fitxtures for the various brands extruders to ensure the timely.The common components have a lot of stock, even the new one, it can be delivered within 45days.

7.The modern management system can ensure the products 100% qualified and tracked.

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 screw components made by Nanjing factory is processed by outsiders, so the quality of products can not be completely guarantee.

Product Accuracy

There are some differences between Joiner Machinery and Nanjing's production technology. Their finishing process is carried out before heat treatment, and the deformation after heat treatment is not controlled, so their so their accuracy is not easy to control. But our finishing process is carried out after heat treatment, which can eliminate the deformation of parts in heat treatment, so the precision is higher, and thus can achieve zero seam connection.

Production and Inspection of Equipment

We also have advantages in production equipment and inspection equipment.
Joiner has 70 advanced equipments such as CNC thread grinder, CNC thread milling, CNC kneading block grinder,CNC forming milling, 4-axis machining center, automatic deep hole grinder, CNC lathe, CNC surface grinder, CNC external grinding, CNC band saw, laser marking machine, vacuum quenching furnace and vacuum tempering furnace. After the raw materials enter the market, all the processing procedures are in-house.

About our Company

Joiner Machinery Co.,Ltd has several years experience in the manufacture and supply of new and refurbished wear parts for all major makes of twin-screw extruders and the Industries involved in plastics industry, chemical industry, powder coating, food food industry, wood plastic etc..
Through close working relationships with our customers we have been able to fulfill their requirements. Flexibility enables us to design and manufacture standard and bespoke components for unique applications. 
Through our highly trained and experienced staff we are able to offer technical support and advice

Our strengths are based on many years experience supplying the following:
Competitive costs per unit of production 
Fast turn round for collection and delivery on refurbished parts 
Parts available from stock for a wide range of extruder makes 
Comprehensive inspection procedure on all parts prior to dispatch 
A time proven quality service 
Latest manufacturing techniques and metallurgy, ensuring consistent and reliable performance of parts 
Customized solutions to meet specific needs.







FRQ
 
1. Q: Are you a factory or trading company? 
 ----A: A factory
2. Q: Where is your factory located? How can I visit there? 
-----A: Our factory is located in Chengdu, Sichuan Province, China, 
1) You can fly to Chengdu Airport directly. We will pick you up when you arrive in the airport; 
All our clients, from domestic or abroad, are warmly welcome to visit us! 
                                             
3.Q: What makes you different with others?
----A: 1) Our Excellent Service 
 For a quick, no hassle quote just send email to us
 We promise to reply with a price within 24 hours - sometimes even within the hour.
 If you need an advice, just call our export office at +86 028 87226313, we will answer your questions immediately.
2) Our quick manufacturing time
For Normal orders, we will promise to produce within 30 working days.
As a manufacturer, we can ensure the delivery time according to the formal contract.
 
 4.Q: How about the delivery time? 
----A: This depends on the product. Typically standard products are delivered within 30 days. 

1.  Q: What is the term of payment? 
   ----A: 1) T/T payment;   2) LC;