Mitee-bite 31500 Steel Id Expansion Clamp 10000 Lb

Product Description

The MITEE-BITE 31500 is a steel ID expansion clamp engineered for high-force workholding applications in machining and fixture setups. The unit expands from 1.15 inches to 6.89 inches in diameter, allowing it to grip a wide range of bore sizes from the inside out. With a rated holding force of 10,000 pounds and a maximum torque rating of 224 ft/lb, this clamp is built for demanding production environments. The 5/8-11 center screw drives the expansion mechanism, while four 1/4-20 mounting screws secure the flange to the fixture plate. Machinists and tooling engineers working in CNC or manual machining environments are the primary users of this clamp.

The MITEE-BITE 31500 is suited for use in horizontal and vertical machining centers where repeatable, high-force internal clamping is required. It is appropriate for production runs where parts must be located and held by an internal bore. The four-hole flange mount allows rigid attachment to fixture plates and tombstones. The large expansion range makes it adaptable across multiple part families without a full tooling changeover.

Key Features

• Expansion diameter range of 1.15 inches to 6.89 inches for broad bore compatibility
• 10,000 lb rated holding force for secure, repeatable workholding
• 224 ft/lb torque rating on the 5/8-11 center screw
• Four-hole flange mount pattern on a 4.648-inch mount hole diameter circle
• Steel construction for durability in production machining environments
• Compact 1.79-inch overall height minimizes interference with toolpaths

Compatibility

Designed as an OEM-style replacement or direct addition for fixture plates and tombstone setups requiring internal bore expansion clamping in machining applications.

Installation Notes

Installation is performed by tooling engineers or machinists. The flange must be mounted to a rigid fixture plate using four 1/4-20 mounting screws before the clamp is engaged. Ensure the fixture plate surface is clean and flat before seating the flange. Disengage the center screw fully and confirm the clamp is contracted to its minimum diameter before inserting into the workpiece bore.