Houghton Lift Bridge, Houghton, MI – Mechanical rework and painting of the double deck, vertical lift bridge at Houghton, MI had potentially changed the weight of the movable span. Lunda Construction, the primary contractor, was required by the Michigan D.O.T. to...
A civil engineering company in Chicago was hired to determine the start-up torque for a column pump at a water treatment plant for the City. The City desired to upgrade the pump drive system by employing reduced voltage starters to minimize in-rush current. Some of...
A large urban city water treatment facility uses large power driven chain-linked scrapers called “flights” to extract impurities (i.e. mud and silt) from each cistern as part of the water purification process. The drive system, specifically the gear sets, would...
WEAR & GRIP LOSS EVALUATION OF HIGH CHROMIUM WELDING DEPOSITS APPLIED ON SUGAR CANE ROLLS ABSTRACT Wear on sugar cane rolls is an expensive maintenance problem for the sugar cane industry. Wear produces loss of sucrose extraction and loss of grip of the roll on...
A Brazilian gearbox manufacturer had a mystery to solve in the giant drive system of a Brazilian sugar cane processing mill. The coupling at the gearbox is a special “overload coupling” and it broke repeatedly during the routine sugar mill process. The special...
