250 Extruder Screw Elements Outside Diameter 247.9mm

Screw Diameter	247.9mm
Screw Design	Double-Screw
Hardness	58-60HRC
Brand Name	Jioner
Surface Treatment	Polishing/Sand Blasting
Materials	SAM10/SAM39/WR5/WR14/W6Mo5Cr4V2
Place of Origin	Sichuan , China
Warranty	1 Years
Screw Range	Φ 15.6 - Φ 430mm
Suit For	Pharmaceuticals Extrusion Chemical Extrusion Food Extrusion Powder Coating Extrusion

(2Extruder Screw Materials:

(3)Types of the Screw Segments

Special Screw Segment Convey Screw Element Mixing Screw Element

Kneading Block and disk Transition Screw Element Screw Element for Side Feeder

Deep Groove Transfer Element OEM

(4)Standerd Screw Element and Kneading Block

(5)Quality Control

1. Materials 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 4.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 lead time.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

(6)Other Products of Our Company

Barrel	Shaft	Side Feeder

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.

Joiner Machinery Co.,Ltd is a professional enterprise of spare parts for twin screw extruder: Barrel & Screw Element & Shaft & Side Feeder.

It occupies 15600 square meters with over 100 staffs and  more than140 sets of advanced processing equipments in our plants.Such as the CNC thread grinding machine, the CNC screw milling,the CNC lathe,the CNC surface grinder,the CNC cylindrical grinder,the CNC sawing machine,the automatic deep hole grinding machine,the CNC lathe,the CNC surface grinder,the CNC cylindrical grinder,the CNC sawing machine,the laser marking machine,the vacuum quenching furnace,the vacuum tempering furnace and so on.Ultimately,We become one-stop manufacturer for all services and thereby ensure the good quality through the internal control.There are also some advanced testing equipments,such as the three coordinate measuring system,metallographic analyzer,the Tayer roughness meter,The Janpanese Mitutuyo height gauge,the CMM,the Rockwell hardness tester,Vickers hardness tester ,the three coordinate measuring system and some other advanced testing equipments.Which ensure the products 100% controllable.we have over 20 years of experience in supply and refurbishment for wear parts.

Supplied sample mapping and processing for overseas

-APV                         -KOBE                               -OMC

-Buhler                      -KraussMaffei                     -Theysohn

-Buss                         -Berstorff                           -Toshiba

-Clextral                     -Labtech                            -JSW

-Leistritz                     -Maris                               -Keya

-others

Inspection of screw element Barrels

Joiner will throughly inspect all parts of wear,Cracks,Imperfections,Straightness,and Concentricity.Joiner will rapair broken barrals,and other componets.Inspections need to be performed to determine the severity of damage and if reparation is an option.All conclusion are documented in detailed reports with respective Recommendations.

As Lao Ti said" a journey of a thousand miles begins with a single step"

Joiner always adhere the saying and devete to the field of extrusion for 20 years.We believe in the continuous improvement of pursuit of excellence to achieve win-win cooperation with our customers.

Welcome to visit our company,We believe that if you have visited our factory,you will choose Joiner Machinery.