Chucks

MANUAL CHUCKS:

Hand Operated Chucks. The conventional bevel gear and scroll have been replaced by a worm & worm wheel to operate the jaws. The worm & worm wheel and the circular cam gives the chuck an amazingly high mechanical advantage and gripping power

Hand Operated Independent Jaw Chuck is used to hold irregular shape of components and concentricity is adjustable as required. It delivers high gripping force.

Manual Chuck with Quick Jaw Change meets the growing needs of the present day small to medium batch production. It provides high reliability and concentricity and the Quick Jaw Change facilitates quick and accurate Repositioning Reversing or Jaw changing operations quickly and accurately.

POWER CHUCKS:

Power Operated Chucks without through bore can be used as a replacement for manual chucks on a conventional lathe to increase the productivity.

These can be actuated by hydraulic, pneumatic or electro- mechanical actuators.

The actuating unit imparts a linear motion of the wedge is transformed to radial movement of base jaws. This transformation provides a mechanical advantage of 1:4. This ensures a minimum of 1:2 mechanical advantage after providing for internal losses, self locking effect and losses in gripping power at high speed.

Power Operated High Speed Chucks With Through Bore are designed to rotate at high speeds on CNC lathes.

The compact construction of the PHNC Chucks offer further advantage of less weight and low inertia which have positive influence on the dynamic effect of CNC machine spindle. These chucks have a large through bore and therefore suitable for bar work.

The base jaws and top jaws weight are reduced in these chucks. This not only reduces the mass but also lowers the centre of gravity, which make the centrifugal losses low.

Power Operated High Speed Chucks With Through Bore ideal for high speed machining with centrifugal compensation and less gripping force loss.

GMT has designed a chuck to take care of the problems arising out of heavy centrifugal loss. The design is such that the clamping force is very near to that of static clamping force, even at very high speeds.

The base jaws are connected to counter weight by means of levers whereby the centrifugal losses arising due to very high speeds is compensated