STO/W35 Foot mounted safety chuck 

For the standard manual safety chuck, there are two types: flange type safety chuck and pillow type safety chuck. STO/W foot mounted safety chuck is just the pillow type, it is fixed on the worktable by screws. 

This pillow type safety chuck is also called pedestal safety chuck. Reeling safety chuck is used to unwind and rewind roll materials. If needed, it can be connect with motor for driving rotating or driven rotating. It also can be match with air shaft, pneumatic brake to adjust material's tension. 

Following is the technical data STO/W35 safety chuck for your reference:

This safety chuck is widely used in steel machinery, packaging machinery, printing machinery, textile machinery, wire and cable machinery, winding machine, machine tool equipment, plastic machinery, chemical machinery, paper making machinery and other large and automatic machinery.

In this case, pillow mounted safety chuck is matched with pneumatic expand shaft and DBH horizontal caliper disc brake for roller material winding and unwinding tension control. It is used for textile machine, such as face mask machine for material rewinding and unwinding.