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Silver steel parallel clamp with long bar and plastic handle, 31 inch jaw opening

Bessey Tools

Bessey Parallel Clamp 31 in 1700 pressure machine shop hardware

SKU CH-ZPTD-70M42

A high-pressure parallel clamp with 31 inch maximum jaw opening and 1700 nominal clamping force

  • MaterialHAWA
  • 31 inch jaw opening handles large workpieces
  • 1700 clamping pressure delivers strong holding force
  • Cold drawn alloy steel bar resists bending
  • 3 3/4 inch throat depth reaches past edges
  • 5 inch plastic handle gives comfortable grip

Parallel Clamp 31-Inch Capacity

This Bessey parallel clamp delivers a maximum jaw opening of 31 inches for wide workpieces. Its high-pressure design provides 1700 nominal clamping pressure to hold heavy assemblies securely. The flat pads measure 2 by 3-3/4 inches and distribute force evenly across the joint. Cold-drawn alloy steel bar construction resists bending under load.

High-Pressure Clamping Limits

The 1700 nominal clamping pressure rating defines the practical force ceiling for this tool. A 5/8-inch spindle diameter and matching screw size transmit torque without stripping under heavy tightening. Throat depth reaches 3-3/4 inches, limiting how far the clamp can reach past the edge of a workpiece. Bar dimensions of 1-9/64 by 23/64 inches set the structural stiffness boundary.

31-Inch Opening and Headroom

A 31-inch maximum jaw opening comfortably accommodates wide panels, cabinet carcasses and long glue-ups. The 5-inch plastic handle gives sufficient leverage to reach the rated pressure without excessive effort. Cold-drawn alloy steel bar stock provides the rigidity needed to keep jaws parallel across the full span. Builders needing more than 31 inches of opening or higher pressure will require a different clamp.

Highlights

  • 31 inch jaw opening handles large workpieces
  • 1700 clamping pressure delivers strong holding force
  • Cold drawn alloy steel bar resists bending
  • 3 3/4 inch throat depth reaches past edges
  • 5 inch plastic handle gives comfortable grip

Specifications

BrandBessey
MaterialHAWA

Questions about this item

How do I decide between the available jaw-opening sizes for this clamp?

The supplied specification lists a single 31 in maximum jaw opening, so there is no alternative capacity to choose from.

What does the 1700 nominal clamping pressure mean when the clamp is actually in use?

The 1700 figure is the nominal clamping pressure rating; the actual force applied depends on how much torque you put on the 5/8 in spindle using the 5 in plastic handle.

What interface or standard does the 5/8 in spindle follow and what does that limit in practice?

The clamp uses a 5/8 in diameter spindle with a matching 5/8 in screw size; this dimension determines the thread pitch and the maximum torque the mechanism can transmit.

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