H Class Transfer Rooftop Chains
"HZPT" Transfer Chain is available in two types: "H" Class Transfer Chain and Combination Transfer Chain. "H" Class Transfer Chain includes those numbered H 78A, H 78B, H 130,H 131, and H 138. All "H" Class Transfer Chain is available only in riveted construction.
"H" Class Transfer Chain numbered H 78A, H 130,and H 131 is made with peaked roofs. Chain numbered H 138 and H 78B has flat roofs. Combination Transfer Chain includes those numbered C55A, C55B, and C55D. It is available only in riveted construction with peaked roofs.
Both types of HZPT Transfer Chain, referred to at times as "roof top" and "camelback"chain, are designed to carry heavily concentrated loads such as lumber, boxes, barrels, and crates. They are usually intended for operation in troughs in two or more parallel strands.with only the tops of the links protruding.
All "H" Class Transfer Chain is available in Promal (Duramal). The tensile strengths of HXMG Transfer Chain range from 11,700 to 30,000 pounds. Rivet pins furnished with "H" Class Transfer Chain are T-head pins which engage two head holders, cast on the side bars of each link, to prevent pin rotation and minimize wear and elongation of pitch.
"HZPT" Transfer Chain is available in a pitch range of 1.631 to 4.000 inches. Every "HZPT" Transfer Chain is manufactured according to manufacturer's standards and may be interchanged with chain of other manufacturers, where available.