How to remove the rubber cover to prepare a belt splcing

Posted in: , on 4. Aug. 2018 - 17:33

Dear bulkoholics, dear readers, dear experts!

Our company (former MLT GmbH in Germany, now renamed in Hejatex GmbH) has sold over fifteen years mechanical belts fasteners (mainly the Super-Screw fasteners) and provides now the most compact vulcanizing presses and the most advanced rubber glue on the market for belt splicing. Both technologies enable users to significantly improve the productivity of their conveyors, by reducing downtime, but also by solving related problems like accessibility problems or risks for the operators and the maintenance staff (no solvents, no dangerous products inside the rubber glue). One question remains in my opinion unsolved, namely the laborious work for preparing the belt splice, which can take the larger time of preparation and requires a real skill and experience. In a time as it gets harder and harder to find and keep qualified staff, the people ask me regularly if I know a better way to separate the rubber cover from the conveyor belt. That’s why I decided teen years ago to make a video showing the use of a belt skiver (you can see it under https://www.youtube.com/watch?v=VPgGOi5nfC4&t=5s). But this remains not productive for larger surfaces, as required in case of step splicing, and much more in case of finger splicing and steel cord splicing.

Consequently I want to start this thread asking if we can share our experience on this subject and to ask if somebody have a new idea which can help everybody.

Personally I known following solutions for skiving belt cover:

-Manually by using a knife and a gripper (requires time, skill and extreme physical efforts)

-Using an electrical or pneumatically winch (maybe installed on a rail with clamping system; requires some skill; sometime does not work good on solid woven belts because of the high peel resistance and if the belt is old and brittle)

-Using an angle grinder with high efficiency abrasive discs (this method requires time and physical efforts and is very dirty)

-Using the vibration belt skiver (available as pneumatically version too; this requires time, skill and many physical efforts)

-Using the belt skiver like the Mato one installed on a frame or the Flexco one (today limited to approx. 5 cm of the edge)

-Using a milling CNC machine for the wood industry (not usable on customer site or in underground mines)

-Using the tin opener method (I never tried it)

Of course, it's surely not all possible methods.

It would be very helpful if everybody take part to this thread by giving own comments and by suggesting new ways of doing it.

Thank you for participating.

Edgar Jakob

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