Screw Element

Here is the advantages of our cold rolling (cold extrusion) screw shafts compared to the one by traditional spline milling, as below: 

Our company adopts the advanced cold rolling (cold extrusion) process to machine the external splines of the shafts, instead of the traditional mechanical milling method to process the external splines, it is really a qualitative leap.  

General understanding is that this process improves the machining accuracy of the shaft spline (which can be improved by two grades), so that the shaft manufacturing accuracy can reach the international standard by six-level accuracy, and at the same time improve the surface finish of the shaft.

However, what is more important is that we apply this advanced cold rolling (extrusion) process, which belongs to the field of cold work hardening technology, processing the shafts, which can greatly improve the mechanical properties of the parts, because the cold extrusion process can make the shaft material, the metallographic structure of the metal parts will be denser, and more reasonable "continuous arrangement of metallographic fibers" can be formed inside the structure of the metal parts, so that the strength of the shafts is much higher than that of the shaft processed by ordinary mechanical cutting. 

Through the test, the bearing torque capacity of the shaft processed by this process can be increased by 25~30%, and the anti-torque coefficient can reach grade 8. At the same time, a reasonable cold extrusion process can make the surface of the part get higher compressive stress, thereby improving the fatigue strength of the shafts.

We are the worldwide leader in the supply of twin screw extruders, replacement components and support services for several industries such as master batch, powder coatings, plastics compounding and several others. We try to produce the utmost quality by specifically concentrating on the industry standard designs, aftermarket sales, reliability and support services. Our industry standard designs and processing segment enable the clients to take benefit of the extrusion cluster value scheme without accepting the greater prices of succeeding the new process segment geometry. We provide the industry’s most comprehensive selection of twin screw element replacement components and specialty wear solutions.

We are actually one of the superior and independent distributors of spares, components and services for twin screw extrusion. We manufacture the entire wear and corrosion resistant screw elements to the greater standards to assure the compatibility with genuine parts. We also enhance the performance by using our premium range of screw essentials. Now, our screws are widely available for all sizes of machine ranged from 16mm to 160mm. All our products are compatibility with genuine components at the greatest standards of manufacture. Our lists of screw elements are including the following: