Looking for additional roll support and torque transmission
for your winding process? 
Then get a Tidland Boschert Safety Chuck. They are pre-engineered solutions designed for use with a core shaft and tension brake on an unwind or a core shaft and drive on a rewind and are suitable for winding paper, paperboard, film, foil, textiles, nonwovens, metals, and other materials. 
Safety chucks are an economical solution for both end-user retrofit and new equipment for an OEM.

See how Boschert Safety Chucks reduce setup time in a clean room application GO>>

Key Features:

• Self closing (If manual closing is overlooked)
• Effective load bearing design
• Wide range of operating capacity
• Wide range of sockets and shapes
• Special drive shaft ends
• Hand wheel locks
• Insures roll is supported

Additional Key Features:

• Safe Long bearing life
• Smoother rotation
• Fits any winding application
• Custom solution to fit your requirements
• Fits to your brake or drive requirement
• Prevents unintentional shaft release
• Radial driver for idler chuck

There are three basic mounting styles to choose from:

Fixed Safety Chucks – These pillow block mount chucks are designed to be used for fixed winding positions. Flange mount chucks can be used for multi-position turret winding as well as fixed positions. Additional features for turret winders include hand wheel lock and optional extended opening socket angle.

Sliding Safety Chucks - Sliding chucks are designed to allow lateral roll positioning with a manual adjustment wheel with roll locked on the core shaft. Motor driven lateral adjustment is optional.

Automated Safety Chucks – The automated Tidland Boschert safety chucks are available in two designs. The basic design uses pneumatic pressure to open and close the chucks for automatic roll loading or remote control due to limited chuck access. A second design adds the security of redundant mechanical locking in the event of electrical or pneumatic failure. Axial and lateral core shaft alignment guides to reduce operator involvement. Optional sensors can identify open, closed, and rotation position of the chucks.

General Specifications:

C Series Safety Chucks

• One-piece socket
• Chuck sockets hardened
• Best suited for <1,000 rpm

VT Series

• Replaceable socket inserts
• Customize hardness for inserts
• Maximum eccentricity 0.004”

Basic Automated Safety Chucks

• Remote pneumatic operation with mechanical locking back up
• Operational sensors for open, closed, and rotation position

A Series automated Safety Chucks

• Axial and lateral shaft alignment guides
• Ensures proper winding starts
• Eliminates pinch point
• Saves set-up time in repositioning roll
• Saves time by allowing core/roll adjustment
• Prevents core slipping
• Allows differential shaft adjustment
• Economical- Saves money
• Maximizes chuck life
• Increases chuck bearing life
• Lower maintenance cost
• Saves time - run different sockets on the same chucks
• Replaceable, low cost parts
• Improves roll quality
• Increase profits with high-speed runs
• Safety - roll is always secure
• Reduce startup time
• Insures safe roll transfer
• Integrates with machinery controls
• Use with automated roll handling
• Reduces need for positioning by operator