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Spin Welders

Spin Welder.png

Spin Welding as the name implies, is a friction welding technique to join thermoplastic parts. It is essential for the parts to be joined or at least their joint areas must be circular for this method. A shallow Machining groove (tongue & groove) is desirable to index the two parts and to provide a uniform bearing surface.

With one part held stationary, either vertically or horizontally in a special fixture, the other is rotated at 100-4000 rpm with enough pressure applied to keep the parts in contact with each other. The heat generated in friction is used to bring the surfaces to a sealing temperature. When sufficient melt is obtained, the spinning stops, and the pressure is increased to distribute the melt and also to squeeze out excessive melt, completing the general process.


Stroke length - 100mm.

Controller - PLC with suitable MMI.

Time setting - Three-time settings for delay (T1), activation (T2) & cooling from 0 to 9.99 sec.

Power - 1KW / 2.5KW / 4KW / 5KW.

Speed of motor - 100 to 4000 rpm.

Pneumatic press - Upto 2500 N.

Weight - 120 Kg.



Any circular part made out of Thermoplastics, especially for Nylon,

PP & Polyethylene Group

Cream Jar

Hair Oil Bottle

Container Lid


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