High Torque High Strength High Precision High Finish Twin Screw Extruder Shaft

With the development of the twin screw extruder towards high speed and high torque, the strength (especially the thermal strength) and precision of the twin screw extruder shaft are required higher. Through extensive research, the material we use Germany imported pre-hard alloy tool steel and the splines are formed with Europe imported CNC spline cold rolling processing equipment. After customer trial, products fully meet the performance and quality requirements of similar high-end products imported from abroad.

1. Shaft Range

Diameter: 35-200mm
Lenth: 500-14000mm

2. The advantages of cold rolling shaft compared with the traditional milling shaft

Using advanced cold rolling technology to replace the traditional milling to process splines is a qualitative leap in spline processing technology. It not only improves the processing accuracy and surface finish, but also greatly improves the mechanical properties of parts. After cold rolling, the strength of spline is much higher and reasonable fiber streamline distribution inside the parts can form compressive stress on the surface of parts and improve fatigue strength.

Through the test, the torque force of the shaft processed by this technology is increased by 25 ~ 30%, and the accuracy is increased by 2 levels, reaching the national standard of 6 levels. In addition, reasonable cold rolling process can form compressive stress on the surface and improve the fatigue strength.

3. The torque of spline shaft:

4. Material choice of shaft:

5. Types of shaft:

Single keyway

Square keyslot

High torque key button

Dual keyslot
Involute inner spline

Round keyslot rectangle spline

Client requirements available

6. Equipment:

8. Packing: we use wooden box to pack all the shafts

a. Rust-proof oil processing,

b. Oiled paper packages,

c. Bubble wrap package,

d. Special foam packaging,

e. Packing,

f. Sealing.

9. Our service:

24-hour Hotline

No matter when and where to call we can find our service to you.

Pre-sales Consultation

Whether you have any question can be solved through online communication.

Welcome your consultation.

After-sales Services

Having any questions about the products, please contact with us and we will help you deal with them the first time to your satisfaction.

10. products we produce

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.