The air differential shafts slip internally to accommodate multiple width rolls on one shaft. These are always custom-made, the shafts expand for a precision fit and are available in several designs and mounting styles. You can run multiple rolls on one run and still get the tension equalization you need for a good quality output. You can increase your productivity by running varying roll sizes at one time.

Differential shafts are designed for duplex center or surface winders, whether they have variable speed control or not. It is quick and easy to set up, is easy on the cores and won’t let you down when you need multiple roll tension equalization.

NEGA-1 Bearing type for normal paper core	NEGA-2 Bearing type for smooth core (plastic, steel)

Standard sizes available for this Model are as NEG001-40MM and NEG002-50MM, but are available in other sizes for a customized order.