De-sta-co 817-S Pneumatic Hold Down Toggle Clamp 450 Lb

Product Description

The DE-STA-CO 817-S is a pneumatic hold down toggle clamp designed for industrial workholding applications where consistent, repeatable clamping force is required. Actuated by compressed air rather than manual effort, it delivers an inner holding capacity of 450 pounds (2000 N) at a maximum operating pressure of 145 psi (10 bar). The solid bar opens to 95 degrees, providing clear access to the workpiece between cycles. The 817-S is installed by tool-and-die technicians, fixture builders, and automation integrators who need reliable pneumatic actuation on jigs, fixtures, and production tooling.

This clamp is suited for vertical mounting on production fixtures in light-to-medium industrial environments. The 1/8 NPT port allows direct connection to standard shop air lines, and the round and T-slot sensor compatibility supports integration with cycle-sensing or part-presence detection systems. The clamp includes a bolt retainer and operates across a temperature range of 14 degrees F to 194 degrees F, making it appropriate for both ambient and moderately heated production environments.

Key Features

• Pneumatic actuation rated to 145 psi maximum air pressure for consistent, hands-free clamping
• Inner holding capacity of 450 lb (2000 N) with a mechanical advantage up to 4.25:1
• Solid bar design with 95-degree opening for unobstructed workpiece loading and unloading
• 1/8 NPT air port for straightforward connection to standard pneumatic supply lines
• Compatible with round and T-slot sensors for automation and cycle-detection integration
• Includes bolt retainer; vertical mounting orientation with 0.27-inch mounting holes

Compatibility

Designed as an OEM-style pneumatic hold down toggle clamp for industrial jigs, fixtures, and production tooling requiring vertical-mount pneumatic actuation with sensor integration capability.

Installation Notes

Installation is typically performed by fixture builders or industrial maintenance technicians familiar with pneumatic circuit assembly. Isolate and bleed the air supply before connecting or disconnecting the clamp from the pneumatic line. Confirm that the shop air supply does not exceed the 145 psi maximum rated pressure. Mounting hardware should be torqued per facility standards using the 0.27-inch mounting holes in a vertical orientation.