We manufacture high efficiency cranes, which are divided in four parts as per Indian Standard Specifications 807 and 3177 - light duty, medium duty, heavy duty and extra heavy duty.
DesignWe have a separate design department to customize designs as per clients’ specification. The company is well equipped with all the advanced techniques and machines necessary in the construction process. These designs are executed with CAD technology taking care of all the design factors for efficient and smooth working of cranes and
IS: 807-1976, IS: 177-1977, IS: 4137-1985 and IS: 3938-1983 standards.
Class and Duty - CLASS - I: LIGHT DUTY Cranes for maintenance, warehouse and assembly operations.
- CLASS - II: MEDIUM DUTY Cranes for general engineering application and Machine shop.
- CLASS - III: HEAVY DUTY Cranes for Heavy machine shops, paper mills, Fabrication shop, etc.
- CLASS - IV: EXTRA HEAVY DUTY Cranes for continuous operation in Steel mills and other Heavy Engineering purpose. Cranes for out door duty is also designed specially.
FeaturesCrane Bridge: Crane bridge girders are of plate box type/standard rolled steel joist/compound beams/castellated/lattice construction. All the main butt-weld joints of the web are strong and rigid structure, thus 100% reliability of welded joints is ensured. The material of construction conforms to IS: 2062 1992.
Gear Box: Totally enclosed oil immersed reduction gears of rugged wide faced helical and spur gears, which are precision machine cut form special alloy steel forging through hobbing machine. Gears and pinions are supported on antifriction ball/roller bearing to protect gear train from shock loads.
Wheel Assemblies: Long travel wheels are straight treaded double-flanged forged steel wheels. These wheels are supported on antifriction ball or double row self aligned spherical roller bearings in special blocks of 'L' type design ('L' type bearings) to ensure easy maintenance. Wheels of gear and pinion type also provided.
Micro Speed Gear Boxes: Micro speed provides fine inching movements of hoist, trolley or cranes at the rate of 5% to 20% of the main speed, which is achieved by a separate gearbox unique sun and planetary gearing system. Planetary gearing system and pony motor with separate brake unit is fitted on the input side main gear unit. This planetary gearing system provides positive drive and avoids use of electro magnetic clutches.
Couplings: Flexible gear couplings are given in double girder cranes between gearbox and rope drum to withstand the misalignment. Apart from it, geared couplings are also provided between gearbox and wheel in cross and long travel.
Breaks: 'Fail safe' electro magnetic of electro hydraulic A.C. thruster brakes of minimum 150% torque are provided. DC brakes are also given on special request.
L. T. Drive: Generally long travel wheel shall have independent drive (twin drive) for smooth operations.
Motors: Motors are completely enclosed fan cooled crane duty type of reputed makes and confirms to ISS: 325.
Control: Pendent control from floor, master controller from cabin, remote control and variable frequency AC drives are provided.
Single Girder Overhead Cranes Design, Features & Specifications - These systems provide space for materials handling even when production units or warehouses are comparatively small and low.
- To minimize the capital costs for modifications to buildings to provide extra space, we utilize the minimum of space for our crane systems.
- Using various fixing arrangements the single girder traveling cranes can be fitted individually to the existing space available.
- Favorable dimensions result in the optimal highest hook position.
- Normally there is no maximum safety distance to the ceiling of the building for single girder cranes with a load capacity ranging up to 10 T, which makes it a master at saving space even in buildings with unfavorable dimensions.
- Using a comprehensive range of fixing arrangements the traveling cranes can be designed to fit the available space.
- All we need for the planning stage of the crane system are the clear dimensions of the building. We will then design the crane individually for you.
Standard Features Design: Compact dimensions, low weight, easy to operate and maintain, modular design with direct fits between components
Motorst uses sturdy cylindrical/conical rotor pole-changing motors with elegant continuous cast aluminum sections, integrated safety brakes insulation class F, IP54 protection
Gear Boxes: Precision flat helical/spur gear units in light alloy housings with case-hardened gears, high-grade surface treatment and permanent oil/grease lubrication
Brakes: Single/dual-disc electromagnetic DC brakes featuring automatic braking on power failure. Environmentally sound brake linings are designed for approximately 1 million braking operations, which allow long maintenance intervals.
Electrical Panel: Modular design, covering a wide operating ranges. The systems are designed for ease of installation and maintenance and reliable operation, with fuse less circuitry, ducted wiring and non-screwed terminals. Each drive group is equipped with a motor overload protection device to give effective protection against inadmissible overloading.
Painting: Each component & part is thoroughly scrubbed & painted with two coats of primer before assembly & two coats of synthetic enamel after testing.
Special FeaturesLimit Switches: To prevent over hoisting & over lowering of hook
Push Button Stations: Extra light, handy, easy to operate, aluminum,
fabricated from extruded section.
Soft Starts: Electric/electronic soft start modules electrically coupled
to the long travel drives to achieve jerk free, cushioned & smooth starts
Maintenance Platform With Hand Railing: Easy, simple & safe
maintenance of the crane extended partially or totally along the girder.