Master Controller & Joystick Master Controller

Proven performance in heavy duty application of steel plants other metallurgical industries mines & ports. Suitable for EOT cranes, mills, Electric Shovels/ Excavators, Haulage, Locos and other mobile Equipments. Master controller available for continuous current rating of 10A to 40A & Drum Controllers up to 100A. Master Controllers suitable for breaking current at inductive load at 220V. DC in the range of 0.3 to 2A. Available in joystick Version for Control Desk. Number of contacts from 2 to 24 in Single Master Controllers & up to 32 (16 and 16) in Dual Controllers. Contact Blocks,contact & Cams are or sturdy construction & proven design. Convenient & smooth operation, without any fatigue. Permissible switching : 800 operation hour. Number of operation positions, 1-0-1 to 7-0-7 or as required. Enclosure conforming to IP-41, IP-54, IP-55 or superior as per IS-2147-1962. Conforming to relevant IPSS.

APPLICATION :

JOY STICK Master controller Series are used to control of control of electrical drives of EOT cranes,hoist,transformer cars, grab-buckets, up loaders, steel mills, conveyors and other heavy material handling equipment's.

SPECIAL FEATURES :

• Double brake contact with high quality silver cadmium oxide Conant tips having arc-retarding anti-welding properties.
• Provided with special rubber gaskets on the cover to make it dust proof.
• Cams and contact block of high grade phenolic fibers molding material having excellent electrical mechanical properties.
• Star wheel for positive notching at each step and pronounced notching at neutral.
• Joystick master controller are also noted for ease assembly , dis-assembly adjustment as well as free access to all the parts.
• Long life reliable performance and trouble free operation.
• Electrical life : 2 lacs operations.
• Mechanical life : 5 lacs operations
• Permissible switching : 800 operation per hour

Master Controller is housed in an enclosure and provided with an easily removable cover with ample area for maintenance. The cam shaft is mounted on bearing bushes on the walls of the housing.

They are made of delrin material and fixed on square spindle switch which are moved by a handle. The cams are cut according to the switching program.

Dual Master Controller with one universal handle allows a crane operator to control both bridge and trolley motions with one handle. Simultaneous operations of bridge and trolley motions are provided for greater sporting accuracy and faster movement of loads.