De-sta-co 640 Straight Line Action Clamp 7500 Lb

Product Description

The DE-STA-CO 640 is a standard straight line action clamp designed for high-force workholding applications in industrial assembly, welding, and fixture operations. It delivers a 7,500 lb (33,361.7 N) load capacity through a round, internally threaded plunger with a 1/2-13 thread size and 4 inches of plunger travel. The flanged base with six mounting holes provides a rigid, stable platform for permanent fixture mounting. Constructed from carbon steel throughout, the 640 is built to handle repeated clamping cycles in demanding shop environments. A straight red handle gives the operator a clear grip and visual reference during operation.

This clamp is suited for production welding fixtures, machining jigs, and assembly stations where a high-capacity straight line clamping action is required. The flanged base design makes it appropriate for bench-top or plate-mounted fixture work in both light manufacturing and heavy fabrication settings. The internal plunger thread accommodates standard tip attachments for workpiece contact customization.

Key Features

• 7,500 lb (33,361.7 N) load capacity for heavy-duty workholding
• 4 inches of plunger travel with 1/2-13 internal thread for tip compatibility
• Flanged base with six mounting holes for secure, permanent fixture installation
• Round plunger, 0.87 inches in diameter, with 1.25 inches centerline height
• Carbon steel construction for durability in weld and fabrication environments
• Straight red handle for clear operator visibility and positive actuation

Compatibility

Designed as an OEM-style straight line action clamp suitable for industrial workholding fixtures requiring a flanged-base, six-hole mounting pattern and 1/2-13 internal plunger thread.

Installation Notes

Installation is typically performed by fixture builders or tooling technicians using standard fasteners through the six flanged mounting holes. Ensure the mounting surface is flat and rigid to prevent clamp deflection under load. Confirm all fasteners are fully torqued before applying clamping force. Disconnect or de-energize any associated pneumatic or hydraulic circuits before servicing or repositioning the clamp in automated fixture applications.