Profile: Kiesler Machine, Inc. offers precision heavy duty surface mount adjustable industrial hinges. Our wide variety of hinges are suited for heavy-duty industrial applications ranging up to 25000 lbs, in both, left-hand or right-hand configurations. Our heavy-duty hinges are widely used for industrial applications including automation equipment, container doors, gates, lead-filled radiation doors, vault doors, and for military & defense applications. Left hand carbon steel hinge is suitable for a maximum door weight of 1,000 pounds and a maximum radial load of 400 pounds. It is available in 4 1/8" width, 5" height, and 3/8" leaf thickness. Left hand carbon steel door hinges are used in various heavy weight doors. Stainless steel double split shaft collars can be used in various applications, such as power transmission components, gearbox applications, OEM requirements, and agricultural & construction industries.