Paper and Printing Industry
The paper and printing industry covers a broad range of tasks. Cross cutters, conveyors and palletizers, sheet-fed printing and folding machines, gang stitchers, gluing and binding machines as well as machines for the production of envelopes and pads are typical components of a plant. What they all have in common is the need for high-performance belts and conveyors. A particular challenge in this context is the high speed at which the paper webs pass through the different parts of the plant. The highly abrasive nature of paper and board also places high demands on the belt materials used.
Alphabelt engineers and manufactures special belts precisely tailored to the respective task. Many years of experience, continuous development and close cooperation with our customers guarantee customized and efficient solutions. Unique fabrications that take into account the ideas and wishes of our customers are a matter of course for us.
Examples of special materials and techniques used by Alphabelt in the paper and printing industry
Coatings with different friction coefficients
Depending on the application, different coatings can be used to provide conveyor belts either with smooth or non-slip surfaces. This allows the grip and release properties to be optimized. For example, high friction coefficients are required for feeding belts used with printed paper, which ensure reliable positioning even at high speeds. At the same time, the surfaces of the goods to be conveyed must be protected as much as possible.Overlays of abrasion resistant fabric
To protect timing belts against high abrasion, they can be provided on the tooth side (PAZ) with an additional layer of polyamide fabric, which has a particularly high abrasion resistance. Such a coating is also available for the back of the belt (PAR).Perforations for vacuum applications
Belts with vacuum pockets are excellently suited for the non-marking transport of paper. The pocket geometries can be individually designed according to customer specifications and milled into any coating material. On the tooth side, teeth are removed partially from the center of the belt to create a suction channel.Timing belt with stainless steel bristles
When laser cutting cardboard and paper sheets, stainless steel bristles applied to the timing belt ensure the necessary distance between the belt and the conveyed goods. They furthermore form a non-slip and abrasion-resistant transport facing. The bristles can be arranged either vertically or inclined.LCN Coating
This special coating scores with a particularly high mechanical load capacity and abrasion resistance. Compared with the Linatex coating, it is more resistant to pressure and temperature, easier to process and can be welded directly onto the timing belt.Cords with minimal elongation
If the lowest possible elongation under load is required for the timing belts, special cords made of polyester or aramid are used in high-performance belts.Welded-on cleats
Cams of any shape can be welded onto the back of the timing belt to implement form-fit transport tasks. The distance between the cams can be freely chosen and, if desired, can also be designed to be synchronous with the teeth. For example, fan cams made of PU reinforced with glass fibers are used to transport envelopes.
Contact