Screw Elements for Plastic & Rubber Machinery

Offering more than 60 materials, TSE Machine is able to meet your most specific wear and corrosion requirements.


TSE Machine has developed the most comprehensive line of replacement screw elements available today. Offering more than 60 materials, TSE Machine is able to meet your most specific wear and corrosion requirements. We are continually developing new materials to help you decrease cost of ownership and downtime.



Through hardened for consistent wear throughout the life of part

Additional surface treatments available

Soft core for spline protection and maximum torque transfer

Profiles finish ground providing geometric accuracy and excellent surface finish

Engineered to meet or exceed OEM specifications

Screw Elements Classification

Single flight, twin flight and tri-lobe elements

Kneading blocks and single mixing paddles or discs

High volume intake elements

Conveying elements

Compression elements

Reverse elements

Flow splitting elements to mix different viscosities

Transition elements from single flight to twin flight

Discharge elements

Side feeder elements

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

Technical Information for Screw Elements
Main Base materials 1.38CrMoAlA (SACM645) Main Alloy Materials 1. Ni-based alloy/Deloro alloy
2. SKD-61 (Special Tool Steel) 2. Tungsten carbide/Wolfram carbide
3. 42CrMo (Ultrahigh StrengthSteel) 3. NiCo-based alloy
4. DC53 (Cold WorkDie Steel) 4. Fe-based alloy
5. W6Mo5Cr4V2 (High-SpeedToolSteel) 5. Co-based alloy
Processing Technics 1. Heat treatment Technical parameters Nitriding layer depth:0.5-0.8mm
2. Quenching Nitrided hardness:900-1000HV
3. Nitriding treatment Bimetallic layer depth:3 mm
4. Bimetallic alloy welding for screw Bimetallic hardness:57~69HRC
5. Bimetallic alloy centrifugal casting for barrel Hard-chrome plating hardness after nitriding:≥950HV
6. Hard-chrome electroplating Chrome-plating layer depth:0.03-0.09mm
Linearity of screw:0.015mm Surface roughness:Ra 0.4
Mini Single Screw  Diameter from 16mm,18mm,20mm to 40mm Common  Single Screw  45mm,50mm,55mm,60mm,65mm,70mm,75mm,


Production Site


Oversea Service

We have Professional engineer team to do Oversea Service for Technical Support and Measuring.

Packaging & Shipping

  1. Be brushed anti-corrosive oil on extruder screw elements.
  2. Packed with film.
  3. Packed in the wooden.