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

Product Description

The DE-STA-CO 640-M is a standard straight line action clamp rated for 7,500 lb (33,361.7 N) of load capacity, designed for high-force workholding and fixturing applications in industrial and manufacturing environments. The clamp features a round plunger with internal M12 thread and 4 inches of plunger travel, allowing repeatable positioning across a wide range of part geometries. Built from carbon steel throughout, the 640-M delivers durability in demanding production settings. The flanged base with six mounting holes provides a stable, rigid mounting platform. Licensed machinists, toolmakers, fixture designers, and industrial maintenance technicians are the primary installers and end users of this clamp.

The 640-M is suited for use in welding fixtures, assembly jigs, machining workholding setups, and general industrial clamping stations where a straight-line plunger motion is required. The flanged base mounts flat to fixture plates, tombstones, or fabricated steel bases. The straight red handle gives the operator a clear grip point for quick manual actuation. This clamp is appropriate for both light production and heavy-duty fixture applications where consistent clamping force and plunger repeatability are critical.

Key Features

• 7,500 lb (33,361.7 N) rated load capacity for high-force clamping applications
• 4 inches (101.6 mm) of plunger travel for flexible workpiece accommodation
• Round plunger with internal M12 thread for direct tooling attachment
• Flanged base with six mounting holes for rigid fixture mounting
• Full carbon steel construction for strength and wear resistance
• Straight red handle for fast, positive manual actuation

Compatibility

Designed as an OEM-style straight line action clamp for use in industrial fixturing, welding, and assembly applications requiring a flanged-base, straight-plunger clamp with M12 internal thread.

Installation Notes

Installation is typically performed by toolmakers or fixture technicians using standard machine screws through the six flanged base mounting holes. Always ensure the mounting surface is flat and rigid to avoid deflection under load. Verify that the plunger thread engagement and clamping force are appropriate for the fixture design before placing the assembly into production use. Follow applicable workplace safety and machine guarding standards when integrating clamps into automated or semi-automated fixtures.