Hertel CH-304-E Straight Line Action Clamp 850 Lb

Product Description

The HERTEL CH-304-E is a standard straight line action clamp rated for 850 pounds of holding capacity. It uses a round plunger with internal threading sized at 3/8-16 and delivers 1.6535 inches of plunger travel. The body and base are constructed from steel with a zinc finish coating. A straight red handle activates the clamp through 180 degrees of handle movement. This style of toggle clamp is installed by machinists, fixture builders, welding technicians, and tooling specialists working in production, fabrication, and jig-and-fixture applications where repeatable workholding is required.

The CH-304-E suits horizontal clamping applications where a flanged base mount is needed on a flat tooling plate or fixture surface. The flanged base accepts four mounting holes spaced 1.62 inches center-to-center along the length and 1.618 inches center-to-center along the width, each accepting a 0.328-inch diameter fastener. Typical use cases include weld fixtures, machining jigs, assembly stations, and other setups that demand consistent, repeatable clamping force across multiple cycles.

Key Features

• 850 lb holding capacity with 3,780.97 N equivalent force rating
• 1.6535-inch plunger travel with round, internally threaded plunger at 3/8-16
• Flanged base with four mounting holes for rigid fixture mounting
• Zinc finish over steel construction for corrosion resistance in shop environments
• 180-degree straight handle movement for positive open and close action
• Includes one spindle and two nuts for adjustable plunger setup

Compatibility

Designed as an OEM-style straight line action clamp suitable for standard toggle clamp fixture applications requiring a flanged base, 850 lb capacity, and 3/8-16 internal plunger thread.

Installation Notes

Installation is performed by tooling or fixture technicians using standard fastening hardware through the four flanged base mounting holes. Ensure the mounting surface is flat and the fasteners are fully torqued before applying clamping loads. The plunger spindle length and position should be adjusted with the included nuts to achieve proper contact with the workpiece before locking down. Disconnect or de-energize any automated or pneumatic actuation systems connected to the fixture before servicing or replacing the clamp.