Differential Air Shafts Overview
Deacro’s differential air shafts provide the most sensitive tension control in the converting industry. This technology provides extremely sensitive tension control for light gauge and extensible films. The spacerless setup eliminates the requirement to handle tooling or the need to position core stops. To load the cores, operators simply slide cores across the shaft.
Differential rewinding is obtained by controlling the air pressure distributed internally across the roll locks. Tension is programmed into the touch screen and is proportional to the length of the rewinding cores. Therefore, converters have the flexibility to rewind rolls of different widths across the same shaft. The locking design eliminates core dust; ideal for clean room applications. Tooling is easily interchangeable for 3" and 6" diameter cores, so time-consuming mandrel changeover is not required. This system provides the highest rewind roll quality and versatility.
3" Differential Shafts
Deacro Auto Roll Locks
Core and Spacer Overview
Core and spacers are the traditional method of differential rewinding. With this setup, it is required to load spacers and cores with core adapters across the shaft. Differential rewinding is achieved by pneumatic side loading heads that apply pressure axially across the spacers and to each core. Core and spacer tooling is commonly used today for specialized slitting applications.
Camlock and Spacer Overview
This method reduces the requirement to load spacers and to use core adapters. Instead, after an initial setup, operators simply slide cores over the rewind shaft and twist the core on a camlock to lock it in place. Tension is applied by pneumatic side loading heads. Setup of spacers is only required when camlock positions need to be relocated across the shaft.
- Completely spacer less setups
- Sensitive tension control for light gauge films
- Interchangeable tooling for 3" & 6" cores
- No line loss due to side loaded applied tension
- Frictionless design eliminates dust
- Hundreds of shafts installed worldwide
Differential Air Shafts