cranes

Established in 1989, HI-TECH is a leading manufacturer and exporter of EOT (Electric Overhead Traveling) cranes and material handling equipment based in Ahmedabad, Gujarat. Backed by over two decades of engineering expertise, the company specializes in custom-designed Single Girder and Double Girder EOT Cranes that strictly comply with Indian Standard Specifications IS-807-1999 and IS-3177-2006. Technical Specifications and Components HI-TECH cranes are engineered for heavy-duty dynamic loading, utilizing robust structural materials and fail-safe braking systems. Component Engineering Details Bridge Girders Rectangular box section fabricated from high-quality steel plates. Includes stiffening diaphragms (IS-807 & IS-800) and internal sealing via welding to prevent corrosion. Features optimal camber for unloaded conditions. End Carriages M.S. plate fabrication connected to girders via machined bolts. Utilizes a tapered plate design for smooth stress flow and forged steel wheels in 'L' type bearing support blocks. Hoist Motion Powered by totally enclosed helical gear boxes (splash lubricated) and flexible geared couplings. Includes fail-safe electromagnetic/electro-hydraulic thruster brakes that engage on power loss. Rope Drum & Hook Seamless pipe/M.S. fabricated drum with machined spiral grooves. Uses 6x36 construction plough steel wire rope (160/175 kg/mm² breaking strength). Forged steel hook tested to IS 3815 with IDLR certification. Motors TEFC frame size, 40% CDF high torque crane duty squirrel cage/slipring motors with Class F insulation. Suitable for tropical and high-humidity environments (IS:325). Control Systems Options for floor control (pendant push button) or cabin control (master controllers). Electrical protective panels feature isolating switches, overload relays, and circuit breakers. PVC flexible/un-armored wiring throughout. Frequently Asked Questions (FAQ) What types of cranes does HI-TECH manufacture? HI-TECH manufactures Double Girder and Single Girder EOT cranes, goliath cranes, jib cranes, gantry cranes, goods lifts, and specialized flame-proof hoists and cranes. Where is HI-TECH Cranes located? The manufacturing operations are based in Ahmedabad, Gujarat, India. Are the cranes tested before installation? Yes. All cranes are fully assembled and load/overload tested at the factory according to IS:3177 standards. Deflection tests are performed in the presence of third-party inspectors before certification and dispatch. How does the traverse and travel motion work? The travel mechanisms utilize independent driving units with totally enclosed helical gear boxes and floating shaft semi-geared couplings. Both traverse and travel motions feature automatic electromagnetic or hydraulic thruster braking when power is disconnected.

Engineered for precision material handling, the Hi-Tech Jib Crane delivers high-rigidity lifting solutions customized for industrial environments. Designed using advanced modeling software, these cranes minimize structural deflection under maximum load, ensuring safe, stable, and quick material transport. Core Specifications Specification Range / Detail Lifting Capacity 250 kg to 5,000 kg (0.25 to 5 Tons) Jib Radius (Reach) Up to 8 Meters Maximum Lift Height Up to 8 Meters Rotation Angles 180°, 270°, or 360° Engineering & Structural Features Advanced Computational Design: Structural integrity and load calculations are verified using modern design software to ensure maximum safety and operational efficiency. Minimal Deflection: The specially fabricated robust pillar and Jib arm are engineered to maintain a rigid profile, ensuring minimal deflection even at peak loaded conditions. Reinforced Base Rigidity: The pillar features an increased section at the base, drastically improving the overall stability of the structure during heavy lifting and rotation. Optimized Lead Times: Streamlined manufacturing processes ensure quick deliveries for both standard and customized configurations. Available Crane Configurations Depending on your facility's floor space and existing structural supports, the Hi-Tech Jib Crane is available in two distinct configurations: Self-Supported Pillar Mounted: A standalone unit bolted directly to the facility floor. Ideal for open workspaces requiring up to 360-degree rotation and maximum independence from building structures. Wall Mounted: The Jib arm is supported by heavy-duty brackets bolted directly to an existing reinforced wall or structural column. This zero-footprint design is perfect for saving floor space, typically offering 180-degree to 270-degree rotation. Frequently Asked Questions (FAQ) What is the maximum lifting capacity of a Hi-Tech Jib Crane? These cranes are built to handle a wide range of industrial loads, with capacities starting at 250 kg for lighter assembly tasks, scaling up to 5,000 kg (5 tons) for heavy-duty material handling. Can I install a wall-mounted jib crane on any building column? The wall-mounted design requires robust structural support. The existing wall or building column must be structurally evaluated to ensure it can safely bear both the dead weight of the crane and the dynamic load of the maximum lifting capacity at full extension. How does the increased base section improve the pillar-mounted crane? By widening and reinforcing the structural section at the base of the pillar, the crane better absorbs and distributes the torque and bending moments generated during a lift. This drastically reduces swaying or deflection at the end of the Jib arm.

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.

Hi-Tech Flame Proof Crane: Engineering Specifications & Industrial Applications What is the Hi-Tech Flame Proof Crane? The Hi-Tech Flame Proof Crane is a specialized material handling system engineered for hazardous industrial environments. Compliant with IS:3177, 807, and 2148 standards, it utilizes CMRS-certified flameproof motors and Group IIA/IIB vapor-rated electrical enclosures to eliminate ignition risks during heavy-duty lifting. Core Design & Safety Advantages Fail-Safe Braking: A.C. Electromagnetic FAIL-TO-SAFE shoe/disc brakes instantly secure loads during power failures. Brakes are externally mounted on the rear of the motor for rapid maintenance access. Non-Ferrous Contacts: All metal-to-metal contact points, including cross travel wheels, are forged from phosphorous bronze to guarantee spark-free operation. Modular Architecture: The motor, brake, electrical control gears, and trolley drive are independently accessible, minimizing repair downtime. Precision Inching: Integrated inching facilities provide micro-control for both vertical (up/down) and horizontal (forward/reverse) load positioning. Electrical Systems Component Technical Specification Motors TEFC, IP-55 squirrel cage crane-duty (IS:325), Class 'F' insulation, high starting torque. Power Cables 1100 V grade, PVC insulated, GI armored. Copper (< 10mm²), XLPE/SWA (> 10mm²). Control Cables Multi-strand copper conductors (minimum 2.5 sq. mm). Control Panel Flameproof, dust/vermin-proof housing. Includes heavy-duty contactors, HRC fuses, transformers, and overload/short-circuit protection. Mechanical Engineering Gear Boxes: Precision hob-cut alloy steel gears run on anti-friction ball bearings. The system uses a totally enclosed oil-bath with splash lubrication for maximum heat dissipation. Rope Drum: Fabricated from M.S. seamless pipe with machine-cut spiral grooves mounted on self-aligning ball bearings. Rope Guide: Fully encircles the drum to ensure perfect winding and prevent uncoiling under zero-load conditions. Limit Switches: Flameproof, snap-action roller limit switches actuated by the rope guide prevent over-hoisting and over-lowering. Inspection & Quality Control Hi-Tech Industries maintains rigorous internal inspection records throughout fabrication. Clients and authorized representatives retain full access to workshop facilities to witness manufacturing stages and verify compliance. Frequently Asked Questions (FAQ) 1 - Which environments is the Hi-Tech Flame Proof Crane suitable for? It is structurally and electrically certified for hazardous atmospheres containing Group IIA and IIB vapors. 2- How does it prevent over-hoisting? It relies on snap-action roller limit switches positioned at extreme vertical and horizontal ends, physically actuated by the drum's rope guide. 3- Is the hoist safe during power outages? Yes, the electromagnetic braking system is strictly designed as a “fail-to-safe” mechanism that locks the hoist in place if electrical current drops.