Keiper high performance flat belts CROMA data overview

Keiper CROMA high-performance flat belts are made of fully synthetic polyamide foils, with a one-sided or two-sided adhesion coating of chrome-split leather. Fitted with a polyamide reinforcement. With a one-sided or two-sided coating of chrome-split leather, highly resistant to abrasion and wear. Chrome-split leather is used exclusively as a friction coating on power transmission belts as an alternative to nitrile-butadiene rubber (NBR). CROMA belts with a coating of chrome-split leather are perfect for power transmission applications where the rollers are considerably contaminated by oil and dirt. In view of its slightly porous surface, chrome-split leather is air and humidity permeable and absorbs moisture; thus, it retains friction. However, the coefficient of friction of leather is lower than that for nitrile-butadiene rubber and steadily decreases during operation.

Overview to the technical datas of KEIPER flat belt product range FLEXA

Keiper’s high-performance FLEXA flat belts are made of fully synthetic polyamide or polyester fabric and polyamide foil, with or without a suitable adhesion coating made of nitrile-butadiene rubber, depending on the wide range of possible power transmission and conveying applications. Fitted with a polyamide or polyester reinforcement With a one-sided or two-sided coating of nitrile-butadiene rubber, highly resistant to abrasion and wear Different surface structures FLEXA belts can be used as: Power transmission belts Folder-gluer belts Machine belts Tangential belts Spindle belts Properties + Suitable for a large temperature range + High resistance to abrasion + Very good dynamic properties + Resistant to oils and acids + Outstanding anti-static properties of black NBR - Gets brittle when exposed to UV light and ozone (only for limited outside use) - Processing is work and energy intensive (vulcanization, hardening)

KEIPER has an extensive range of flat belts, including high-performance flat belts, power transmission belts, folder-gluer belts, machine belts, tangential belts and conveying belts. For the perfect power transmission, conveying or control solution in any industrial sector. Keiper flat belts are designed to meet your specific requirements and applications, and, accordingly, they are made to size. Our flat belts are made of different traction layers and composite structures with different coatings such as nitrile-butadiene rubber, leather and surface structures. FLEXA With a polyamide or polyester reinforcement With a one-sided or two-sided coating of nitrile-butadiene rubber, highly resistant to abrasion and wear Different surface structures CROMA With a polyamide reinforcement With a one-sided or two-sided coating of chrome-split leather, highly resistant to abrasion and wear Butt leather belts Made of pure prestretched butt leather Rubber-and-fabric belts