Electric Hoists By Sigma Hoist Company Pvt. Ltd.

ELECTRIC WIRE ROPE HOISTS ARE SUITABLE FOR MEDIUM AND HEAVY DUTY OPERATIONS. THESE ARE MODERN IN DESIGN INCORPORATING MANY SPECIAL FEATURES :
* DESIGN : THE HOISTS GENERALLY CONFIRM TO IS:3938 AND COMPLY WITH THE REQUIREMENTS OF FACTORY ACT.
* CONSTRUCTION : THE HOISTS ARE OF STURDY STEEL FABRICATED CONSTRUCTION AND MODULAR TYPE. EACH INDEPENDENT UNIT SUCH AS GEAR BOX, HOIST MOTOR, BRAKE, TROLLEY DRIVE. ELECTRICAL GEAR ETC, IS EASILY ACCESSIBLE FOR MAINTENANCE AND REPAIR.
* MOTORS : HOIST DUTY, SQUARE CAGE INDUCTION MOTORS TOTALLY ENCLOSED IP:55 WITH CLASS-F INSULATION SUITABLE FOR FREQUENT REVERSALS AND BRAKING AND GENERALLY CONFIRMING TO IS: 325 ARE PROVIDED.
* BRAKE : THE HOIST MOTOR IS FITTED WITH A "FAIL SAFE" ELECTRO-MAGNETIC DISC OR SHOE BRAKE. THE BRAKE ACTS AUTOMATICALLY ON INTERRUPTION OF POWER SUPPLY, WHETHER ACCIDENTAL OR INTERNATIONAL.
* GEARS : A TRIPLE GEAR REDUCTION TRANSMITS THE DRIVE FROM THE HOIST MOTOR TO THE ROPE DRUM. HIGH STRENGTH HELICAL AND SPUR GEARS OF EN8 AND EN 24 MATERIAL ARE PRODUCED ON GEAR HOBBING AND GEAR SHAPING MACHINES. THE GEARS RUN IN A TOTALLY ENCLOSED GREASE PACKED GEAR BOX GIVING POSITIVE LUBRICATION TO ALL GEAR PARTS AND BALL BEARINGS
* ROPE DRUM : THE ROPE DRUM IS OF STURDY CONSTRUCTION FABRICATED FROM MILD STEEL PIPE AND IS GROOVED TO TAKE THE FULL LIFT. LARGE DRUM, DIAMETER TO ROPE RATIOS REDUCES WEAR AND ROPE FATIGUE. AS SPECIAL TYPE ROPE GUIDE FITTED TO THE ROPE DRUM GUIDES THE ROPE TO THE GROOVES.