Hertel CH-D317 Toggle Clamp Horizontal 375 Lb U-bar

Product Description

The HERTEL CH-D317 is a manual hold-down toggle clamp designed for horizontal workholding applications in machining, fabrication, welding, and assembly operations. It delivers a holding capacity of 375 pounds (approximately 170 kg) through an over-center locking mechanism that maintains clamping force without continuous operator effort. The clamp features a straight, red steel handle with 60 degrees of handle movement and a U-bar with 185 degrees of bar opening, allowing fast part loading and unloading. The flanged base provides four-point mounting for secure fixture or jig attachment. Construction is steel throughout, including the handle and bar.

The CH-D317 suits light to medium-duty horizontal hold-down tasks in machine shop fixtures, woodworking jigs, welding positioners, and production workholding setups. The closed bar end and U-bar style make it appropriate for clamping flat or contoured workpieces where a broad contact area is needed. It is sized for benchtop and fixture-mounted installations where compact overall dimensions are a requirement.

Key Features

• 375 lb holding capacity with over-center locking mechanism
• Horizontal handle orientation with 60-degree handle movement
• U-bar style with closed bar end and 185-degree bar opening for fast workpiece access
• Flanged base with four mounting holes for rigid fixture attachment
• Full steel construction with zinc finish coating for corrosion resistance
• Red straight handle for quick visual identification in production environments

Compatibility

Designed as a direct-fit manual hold-down toggle clamp for horizontal workholding fixtures, jigs, and production tooling requiring a flanged-base, U-bar clamp with a 375 lb hold-down rating.

Installation Notes

Installation is performed by machinists, toolmakers, or fixture builders using standard drill and tap operations or through-bolt mounting into a fixture plate. Four mounting holes accept 0.26-inch diameter fasteners spaced 0.63 inches lengthwise and 0.98 inches widthwise between hole centers. Verify that the mounting surface and fasteners are rated for the full clamping load before use. Do not exceed the rated 375 lb holding capacity.