Rubber Lagging |
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Time is of the essence: it just has to be a new drum motor and rubber coated as well. Interroll can now offer a quality cold bonded or hot vulcanized drum motor to their customer requirements with a much shorter delivery time from their Wassenberg factory in Germany which was established in October 2008.With the latest manufacturing and test equipment available this enables all our customers to receive the highest quality rubber coating and excellent delivery times. We can offer rubber coated drive drums to cover PVC, PU and heavy duty conveyor belts, plus we have over 250 designs covering the majority of plastic modular belting. Our knowledge and experience is of great help to our customers when specifying their requirements. Prior to the opening of our Wassenberg factory, deliveries took a minimum of two weeks, we can now deliver standard products within seven days and emergencies within two days. 
Interroll is able to rubber coat from 500 to 1,000 shells or rollers per week, depending upon type and customer needs. CCW only supply rubber of the highest quality, whereby formulae and compounds are specified together with suppliers, confirming that they are available exclusively to the CCW.
In the CCW, 80% is hot vulcanised and 20% cold bonded. Cold bonding involves establishing a chemical bond between the vulcanised rubber and the shell. The shell is degreased and metal blasted in a fully automatic blasting chamber, and then rubber is transferred to the shell via a bonding process. This finished rubber usually has a smooth surface and is not processed further. 'Smooth' cold bonding shells are used for driving all types of belts except several modular belts. Hot vulcanized shells are also degreased and blasted on the inner and outer surfaces. They are then subjected to a special 'primer finish'. An extruder coats the product with uncured rubber, and following that, an autoclave vulcanises the tubes at 150°C and a pressure of 5 bar. The shells are then subjected to an abrading process, and can be ground smooth, spherically, crowned or cylindrically. It is also possible to grind slots or profiles into the surface for driving full PU material or modular belts, in fact just as the customer desires. A unique CNC machine designed exclusively by Interroll is used for the grinding and profiling process.
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