Single Girder HOT Cranes

Specifications The Cranes are designed and manufactured in accordance to IS 3177 \IS 807. Design of the crane structure as well s components/parts of the cranes shell confirm to class-I duty of the above codes.Bridge - It is as per IS 807/IS 3177/IS800.These are standard I beams of M.S. rolled steel sections bolted to end carriages.End Carriages- Box type in construction & fabricated from rolled section.L.T. Wheels-Two nos. straight type, En8 forged steel ,double flanged LT wheels are provided in each of the two end carriages. These wheels are supported on steel axels. For under slung cranes S.G.I tapered type single flanged wheels are provided.Pinion/ Axle- Made from En9, heat treated carbon alloy steel.Gears - They are as per IS 4460 , made from EN 8 and are supported on ball bearings.Bearings - Heavy duty sealed ball bearing are used thus regular lubrication is eliminated . Two ball bearing are provided in each wheel for smooth running.Hook- It is as per IS 8610 / IS 3815. Made from forged steel - C20, C30 or equivalent. It is collar or shark type in construction with safety latch.Hoists- 'INDEF' brand chain pulley block .The block is as per IS 3832 with triple spur gear and friction disc brake (self actuating type construction). Load chain wheel is made of heavy duty S.G.I. casting with accurately cast chain pockets . Load chain wheel is mounted on two ball bearings for smooth operation. Bottom block is made of heavy duty malleable casting . each block is tested to 50% over load.Load Chain- Grade 80 alloy steel as per IS 6216.Hand Chain- Grade 30 M.S. chain as per IS 2429.Testing- For all motions at 25% over load as per IS 3177.