H&H Laboratories got its beginnings back in 1964. It holds U.S. Government Approval for training, certifications, and qualifications of resistance welding machines. It is also a source for testing equipment, as well as the calibration of such. In addition to testing equipment, H&H Laboratory also makes water cooling units, or "chillers" as we like to call them. These units aid in the cooling of the welding machines, which enables it to perform for a longer period of time without the wear-down of parts normally affected be overheating. Our "chillers" are available in small, large, and customized sizes.
A complete list of items and servises are:
Metallurgical & Physical Testing

Chiller Units

Surface Resistance Analyzers

Silver Solutions

Electrically Conductive Greases

Government Approved Training Seminars

Test equipment: Weld scopes, Tensile testers, ect.

Government Spec. Qualifications and Certifications

Chemical Etches

On-sight welding procedure evaluations
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The RA-10 SurfaceResistance Analyzer