Sureka Group

Bara Bazar, Kolkata, West Bengal

Design "SUREKA" hoists are designed as per IS 3938 Class II duty operations and repetitive use under most severe operating conditions. Hoists specially designed for higher lifts, faster hoisting & cross travel speeds & moveable on curved tracks can be manufactured on request. Motors We offer hoist & crane duty Vz hour rated squirrel cage induction motors, confirming to IS 325 with comparatively higher H.P. and higher starting torque to reduce handling time. It is flange mounted to suit our design and with Class B or F insulation. Hope Drum The rope drum is made of seamless pipe machined & grooved accurately, to ensure proper seating of wire rope in a proper layer. The drum is fitted with two heavy duty Ball / Roller bearings of reputed make for smooth operation & longer life. Rope Guide The rope guide is made of special close grain castings & is specially designed and accurately machined to suit the grooves of the rope drum & prevents the rope from overriding & loosening. It also operates the limit switches provided as a safety feature to limit the over hoisting & over lowering of the hook. The guide is so designed to ensure proper tensioning of the rope. Gear Box Totally enclosed oil splash lubricated & dust free gear box is provided for smooth, trouble free & longer life. All gears are helical type and cut from alloy steel / low carbon steel on hobbing machines for achieving higher precision & a special process of gear toughening ensures smooth, silent, trouble free running of drive system. The pinions and gears are supported on anti-friction bearings on both ends. Modular The design is of modular construction and its maintenance is easy as each component i.e. Construction Brake, motors, gear box & Control panel are independent units and are accessible easily. The complete hoist can be easily maintained by keeping it in its installed position, thus saving on precious labour as well as down time maintenance time. Bearings Heavy duty deep groove ball / roller bearings of reputed make i.e. FAG / NACHI or equivalent make are used on all rotating parts and are grease packed for longer bearing life. Trolley Push-pull, Hand Geared or Motorized Trolleys are of adjustable type and fitted with ball bearings to suit recommended size of I-Beams. Hooks Heavy duty high tensile steel forged hooks are used & fitted in such a manner that they rotate and swivel freely. Brakes Heavy duty 3 phase AC fail safe electromagnetic disc type brakes are provided on hoisting motion held closely to sustain the full load when current supply is switched off either accidentally or intentionally. It is mounted on the rear end of the motor for easy maintenance. Limit Switch : Snap action type limit switches are provided to avoid over hoisting & over lowering which is actuated by rope guide. Control Panel Is made of sheet metal covering and are provided with (A) Schneider /C&M/L&T/ Siemens make triple reversing contractors, (b) Triple pole thermal Overload relays of auto reset type is provided in power circuit, (c) Step down transformers to give 24 /110 Volts for pendant control, (d) Cartridge type fuses are provided, (e) Special single phasing preventer is provided for the safety of Electricals. Supply Voltage The hoist is suitable for operation on 400/440 Volts, 3 phase. Testing The hoist components are subjected to strict quality control procedures. And the hoist Is finally tested to 25% overload before dispatch. Guarantee A guarantee is provided for the repair and replacement of any part which proves defective in material or workmanship provided it is not tempered with technical specifications furnished below are for Class II duty HOISTS with std. 6 mtrs lift with corresponding hoisting & CT speeds as per chart. The specifications / dimensions are subject to change in case of any deviation from our standard specifications. Higher lift hoists are also available against specific order.

Our clients can avail an extensive range of Single Grider EOT Cranes, which is fabricated in strict compliance with international quality standards. Acknowledged for their robust construction, reliability and efficiency, these cranes find extensive usage in automobiles and engineering industries. Available in various capacities, heights and sizes, our custom designed cranes are offered at competitive prices.

Jib cranes assist the staff and multiply human efforts, handling loads up to 6300kg precisely and effortlessly. Jib cranes are useful especially for loading or unloading of workpieces on machine tools. These are also useful for loading or unloading of trucks. They can also become an inseparable part of a standalone workstation and machine assembly area. Column mounted Jib Cranes are necessary when no other appropriate support near a workstation is available. Wall mounted Jib Cranes are ideal solutions for workstations located near walls or vertical structures. Sureka designs and manufactures such Jib Cranes to suit specific client requirements.

Underslung Cranes Sureka manufactures Single Girder as well as Double Girder cranes in the Underslung version. Such cranes find applications where the headrooms available are limited or the process requirements cannot allow any other means of supporting the crane except from the roof. Majority of Underslung Overhead cranes are in the capacity range from 250kg to 10MT. However, higher capacity Underslung Cranes can also be manufactured as per the client requirements.  Precise control of the up/down motion and/or travel motion can be achieved by fitting Variable Frequency Drives in the panels (optional). Control can be either through a Pendant Push Button station or a Radio Remote Control (optional)

Sureka manufactures Double Girder Overhead cranes in SWLs ranging from 1MT to more than 100MT.Double Girder Cranes can be offered for a very large range of spans, large range of heights of lift as well as a large number of speeds. They can also be provided with multiple hoisting trolleys running on the same bridge. Precise control of up / down motion and / or travel motion can be achieved by fitting Variable Frequency Drives in the panels (optional)