Motors
Frequent starting , reversing & braking, dust proof construction foot / flange mounted TESC / TEFC , Sq. cage motors with integrated safety brakes, insulation class F-H, IP54 protection for hoisting, CT & LT motions. Squirrel Cage Induction Crane duty motors of reputed make (Motors may be used preferably of JIAMUSI/NANJINGZONGCHANG make), CDF25%, Totally enclosed, fan cooled, Insulation Class-F & confirming to relevant latest GB/T 1032-2005.
Brakes
Independent Hydraulic Brake Conical rotor type or "Fail to safe" action type Electro-hydraulic drum / disc brakes type to be provided to hold the mechanism in position instantaneously as soon as the power supply is 'OFF' either accidentally or intentionally for all motions.
Gear Box
Accurate hob cut helical / spur gears & pinions having hardness 250 to 350 BHN made from carbon alloy steel, smooth operation & long life, can equipped with SEW/ABB brand high quality gear box
Electrical Panel
Modular design, ease to install and maintain, reliable operation, fuses less circuitry, ducted wiring and compact terminals. Motor overload protection to prevent overloadingIf cabin control, it can be equipped with Air-conditioning and with easy and conveniet control panel.
Limit Switch
For over Hoisting and Over lowering: Shunt, adjustable type. Two way lever type for CT both direction and LT both direction of reputed make.Safety limit switches for stoppers will be provided to prevent over traveling in all motions.
Control Panel
Through Cabin Control as also with Master Controller with Push Button for ON, OFF, UP, DOWN, Forward, Reverse, Left, Right, Bridge Light & Emergency Stop. Operating safe Voltage 36Volts, hanging in the end of Bridge Girder.The control panel of crane should consist of Fuses, reversing air breakers, step down transformer, relay etc. The wires / cables should be numbered as per circuit diagram. Circuit diagram covered with sheet to be provided on the inside of panel door.
