The Wind-Up and Pitch

While certain brake types may create tension issues across the range of substrates, programmable, brushless AC vector motors can be programmed to handle any material, while eliminating brake maintenance needs, explains Don Jensen, sales and marketing manager at RG Engineering. The motor's braking action generates electrical power that can be fed back into plant power or into the rewind. These servo systems feature automatic pretensioning and are programmed to sense the end of the roll, eliminating the need to clean and maintain sensors, he adds.