De-sta-co 807-U Pneumatic Hold Down Toggle Clamp 375 Lb

Product Description

The DE-STA-CO 807-U is a pneumatic hold down toggle clamp designed for industrial workholding applications where repeatable, hands-free clamping force is required. Powered by compressed air at a maximum of 145 psi, it delivers an inner holding capacity of 375 lb and an outer clamping force of 297 lb. The solid bar opens to 103 degrees for clear workpiece access and sits 1.38 inches above the mounting surface in the closed position. A 1/8 NPT air port connects directly to standard shop pneumatic lines. Mechanical advantage ranges from 2:1 to 6:1 depending on load position. A flat washer is included. This clamp is installed by machine builders, fixture designers, and tooling technicians on assembly lines, CNC fixtures, and production jigs.

The 807-U suits horizontal mounting on machining fixtures, welding positioners, and automated assembly stations where consistent downward clamping pressure is needed across repeated production cycles. The clamp operates across a temperature range of 14 degrees F to 194 degrees F, making it suitable for both ambient and moderately elevated shop environments. The solid bar style and open bar end allow flexible part geometry accommodation. Sensor compatibility includes round and T-slot sensor mounting, supporting integration with cycle-sensing or presence-detection systems in automated cells.

Key Features

• Pneumatic actuation via 1/8 NPT port, rated to 145 psi maximum air pressure
• 375 lb inner holding capacity and 297 lb outer clamping force
• 103-degree solid bar opening for clear workpiece loading and unloading
• 1.38 inch height under bar in closed position for low-profile workholding
• Mechanical advantage up to 6:1 depending on clamping position
• Round and T-slot sensor compatibility for automation and cycle-sensing integration
• Operating temperature range of 14 degrees F to 194 degrees F

Compatibility

Designed for horizontal mounting on industrial workholding fixtures, machining jigs, welding positioners, and automated assembly equipment requiring pneumatic hold down clamping. Compatible with round and T-slot sensors as specified by the manufacturer.

Installation Notes

Installation is typically performed by tooling technicians or machine builders. Depressurize the air supply line fully before connecting or disconnecting the 1/8 NPT port. Mounting holes accept 0.28 inch fasteners; verify that mounting surface and fastener hardware are rated for the clamping forces involved. Confirm air supply pressure does not exceed 145 psi to avoid overloading the cylinder.