Messages

Subject:
Handles *PIC*

Bill Tindall, E.Tn.

Manufacturers put handles on clamps with the handles designed to prevent clamp failure from over tightening. Round handles are probably the most limited. In contrast, panel clamps from an earlier time had cranks capable of exerting substantial force. I wish I had access to a load cell so I could measure the force these traditional Hargrave clamps apply. This basic Acme thread size is found in the panel assembly stations in furniture factories. In the factory they are tightened with an air wrench but I do not know the foot pound setting used. Franklin technical literature indicates that 5 of these clamps will provide at least 14,000 pounds of pressure.

I use these Hargrave clamps on 8/4 assemblies. I use industrial strength aluminum bar clamps for 4/4 assemblies.

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