100 KG Used Tire Retreading Equipment Cold Retread Rubber Stirring Machine

Cold Retread Rubber Stirring Machine Used Tire Retreading Equipment

Service we offer:

1. Help you ship the machine to your city;

2. Offer the raw material constantly;

3. Teach you how to use this machine;

4. Offer technical support when you need help

First, tyre body testing

The Prevulcanized retreading method is different from the traditional heat retreading techniques; it has more strict requirements on the tyre body. At first, the ring can not have broken wire, tyre appearance must be intact; the second , the tyre side face can not have too much broken scar, even broken thread. If rubber surface is aging and burned heavily, it can not be renew, the third, small pinhole surface can be renovated, but local wearing depth can not exceed three layers. Radial tyre steel wire should not broken, drawn wire or rust marks are not allowed.

Second: The tyre body drying process

Due to the long circulating time over market, there is much dust, dirt and other debris on the old tyre body surface, in order to improve the tyre appearance and enhance inspection result; we have to clean them carefully before the drying process. The aim of drying is to wipe off the water inside innerliner, so as to avoiding the tread surface and inside

layers delaminating.

Third: The tyre body polishing process

A qualified tyre body, after the certain period of drying process, it should meet the first turn polishing process by "pneumatic tyre profile grinding machines", so as to clear the waste tyre body surface. According to strict requests, the polishing action must follow the tyre body's radian and depth direction. After this step, different kinds of tyre matrix need further manual repair on the hole and scar parts, to get a rough and clear surface.

Fourth: The tyre molding process

Put the polished tyre on the shelf spreading the pre-mixed glue on the surface of tyre. In the meantime, put the prepared tyre outer layer on clear board also spreading glue on it, waiting for two layers become dryer, then gluing them together by tread pressed machine to expel air inside and intensify the tyre body and tread bonding strength.