CD Skripsi
Perancangan Ulang Sistem Hoisting Pada Overhead Travelling Crane Kapasitas 55 Ton Di Area Crusher Pt. Semen Baturaja (Persero) Tbk Indonesia
Hoisting system on overhead traveling crane capacity of 55 tons in the crusher area of PT. Cement Baturaja is designed for material handling processes, especially if it is needed in the event of equipment disruption or trouble in the area and also during factory shutdown. The main components of the hoisting mechanism consist of wire rope, pulley, drum, hook, lifting motor and mechanical brake. In this design initial data obtained from observations of objects and through discussions with resource persons in the field. Calculations and design up to determine the safe number of all the main components is obtained based on the appropriate literature. In this design the type of wire rope 6 x 41 + 1 Fiber 32 mm diameter is obtained and the estimated life of the wire rope is approximately 1 year with the assumption of 24 hour usage. The pulley system used was 8 arches with a diameter of 320 mm, a pulley shaft diameter of 115.95 mm and pulley material was FC 20 cast iron. The selected drum material was CII H-1 friction resistant cast iron with a drum diameter of 640 mm. The type of hook used is a double horn hook with 20 steel material and has a smooth M 140 x 6 metric thread. The drive of this lifting mechanism uses an electric motor with motor power of 25 hp. The mechanical brake used is a double shoe brake with a diameter of 320 mm brake wheel and the material used is asbestos coated with brass fiber.
Keywords : Overhead travelling crane, hoist, deisgn
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