Montalvo’s flange-mounted steel GR-Series torque-activated core chucks incorporate leaves that self-expand through reel rotation combined with web tension. They are ideal for high weight, speed, and tension unwind or rewind applications (i.e., sheeting, paper, laminating, etc.) for precise, consistent tension control from full roll to the core. The GR Series is also available in a Step Design or with bolt-on Adapters when working with multiple core sizes from 3″ to 16″.
- Overview
- Specifications
- Documents
Drop-In Replacement Design
For easy upgrading of existing installations
No Operator Interaction, Tools, or Air Required for Expansion, Retraction, and Disengagement
Automatic Core Release
With no torque, the leaves spring retract to the relaxed position
Bi-directional Operation
Jaw expansion is designed to activate with roll rotation in either direction
Flange or Center Bolt Mount
Available with additional manual locking of leaf expanders
Bolt on Adapters
Offers multi core capability
Step Design Option
Offers dual core capability in a single chuck
Core Sizes from 3” to 16″
Concentric Mechanical Expansion
Rugged, Durable, Dependable Performance for Lower Total Cost of Ownership
High Performance and Quality Even in Dusty Environments
For additional information on our Torque Activated Core Chucks download the
.
GR Series
Torque Activated Models
Specifications* (per chuck) |
3″ (70mm) Core |
4″ (100mm) Core |
5″ (125mm) Core |
6″ (150mm) Core |
---|---|---|---|---|
Max. Capacity lb (N) |
3,600 (16,000) | 4,720 (21,000) | 6,050 (27,000) | 7,870 (35,000) |
Max. Torque in-lb (Nm) |
4,870 (550) | 7,080 (800) | 11,000 (1,250) | 16,800 (1,900) |
Max. Torque in-lb (Nm) |
3,365 (380) | 4,600 (520) | 7,350 (830) | 10,180 (1,150) |
*Standard Models only. Please contact your Montalvo representative for Non-Standard requirements.
All models available as STEP CHUCK format allowing for maximum machine efficiency when changing core sizes.