goliath cranes supplier

HI-TECH Goliath Cranes are engineered for high-performance heavy material handling, delivering robust reliability, minimal maintenance, and strict compliance with Indian Standard Specifications (IS-807-1999 & IS-3177-2006). Structural Integrity Bridge Girders: Fabricated from high-quality steel plates into a rectangular box section with stiffening diaphragms. They are built with the required camber for unloaded conditions and are internally sealed via welding to prevent internal corrosion. End Carriages: Constructed from M.S. plates utilizing a tapered design to ensure smooth stress flow under dynamic loads. They connect to the girders using machined bolts and feature forged steel wheels housed in 'L' type bearing support blocks. Trolley Frame: A welded combination of M.S. plates and rolled sections carrying the hoisting and traversing machinery on four forged steel wheels. Assembly: All structural parts are match-marked for seamless on-site erection, and a full-length anti-skid platform is provided on the drive end. Mechanical Operations Motion Type Power Transmission Braking & Safety Features Hoist Motor coupled to a totally enclosed, splash-lubricated helical gear box. Drives a machined M.S. rope drum with right/left spiral grooves. Fail-safe electro-magnetic/hydraulic brake. Spindle limit switch prevents extreme hook over-travel. Traverse Motor powers trolley wheels through a vertically mounted spur/helical gear box using a floating shaft principle with semi-geared couplings. Automatic electro-magnetic/hydraulic thruster brake engages instantly upon power loss. Travel Two independent units at the bridge girder ends. Each motor drives a bridge wheel through a totally enclosed helical gear box. Automatic electromagnetic/hydraulic thruster brake engages on power cut. Electrical & Control Systems Motors: Crane-duty squirrel cage or slipring motors (40% CDF, high torque, Class F insulation) designed for high humidity and tropical climates (IS:325 compliant). Controls: Operated via a floor-controlled pendant push button or cabin-controlled master/cam controllers. Slipring motors utilize unbreakable stainless steel grid resistors (BSS-587-1957) housed in ventilated steel. Wiring & Panels: A sheet metal protective panel houses an isolating switch, overload relays, circuit breaker, fuses, and low-voltage transformer. All connections use PVC flexible copper cables. Quality & Testing Prior to dispatch, cranes are fully assembled and subjected to rigorous load, overload, and deflection tests in accordance with IS-3177. Tests are conducted in the presence of third-party inspectors to ensure certified performance. Frequently Asked Questions (FAQs) What safety standards do HI-TECH Goliath Cranes meet? They are strictly designed to conform to IS-807-1999 for structural design and IS-3177-2006 for mechanical/electrical operations and testing. What happens if there is a sudden power outage? The cranes utilize a fail-safe mechanism. Electro-magnetic and electro-hydraulic thruster brakes automatically engage on all motions the moment power is lost, securing the load instantly. Are these cranes durable enough for outdoor, humid environments? Yes. The internal girder surfaces are sealed against corrosion, and the motors utilize Class F insulation specifically chosen to withstand tropical climates and high humidity.