Cryogenic Equipment Maintenance & Rehabilitation Services

City Machine & Welding, Inc. (CMW) is engaged in the inspection and testing, certification or repair of cryogenic vessels. We offer a full line of cryogenic equipment maintenance and repair service including vacuum investigation and complete rehabilitation projects. CMW`s main focus lately has been on the liquid helium containers. CMW rehabilitates, repairs and retests 56,781 L (15,000 gal) over the road helium trailers and 41,640 L (11,000 gal) UN Portable tanks in 40 ft ISO frame. These containers comply with a multitude of international codes and standards and operate around the world.