Shakti Machine Tools

A self-centering chuck, also known as a scroll chuck,^[2] uses dogs (usually called jaws), interconnected via a scroll gear (scroll plate), to hold onto a tool or workpiece. Because they most often have three jaws, the term three-jaw chuck without other qualification is understood by machinists to mean a self-centering three-jaw chuck. The term universal chuck also refers to this type. These chucks are best suited to grip circular or hexagonal cross-sections when very fast, reasonably accurate (±0.005 inch [0.125 mm] TIR) centering is desired.

Sometimes this type of chuck has four or six jaws instead of three. Four-jawed chucks are primarily useful for gripping square or octagon material, while six-jawed chucks hold thin-walled tubing and plastic materials with minimum distortion.

There are also independent-jaw (non-self-centering) chucks with three jaws, but they offer few advantages and are very rare.

There are hybrid self-centering chucks that have adjustment screws that can be used to further improve the concentricity after the workpiece has been gripped by the scroll jaws. This feature is meant to combine the speed and ease of the scroll plate's self-centering with the run-out eliminating controllability of an independent-jaw chuck. The most commonly used name for this type is a brand name, Set-Tru. To avoid undue genericization of that brand name, suggestions for a generic name have included "exact-adjust

Thease chucks are exclusively designed for drilling machines,milling machines and vertical CNC machining centers. The compact construction of these machines provides maximum working space,which allows inspection of components in clamped or unclamped positions.
These chucks with a built-in cylinder can be operated pneumatically or hydraulically with a flexibility of using in vertical positions.

Additional Information:

• Delivery Time: same day we have ready stock
• Packaging Details: box packing

These chucks are available with 3 jaws, 4 jaws and 6 jaws and are referred  respectively. These are similar to Normal Standard Chucks, the only difference is that the bore is larger than normal Chucks. These chucks are used where machine is lighter and the job requires large bore in the chuck. One set of Reverse Jaws, Mounting bolts, Operating Key and inspection report is provided with each chuck.

SHAKTI MACHINE TOOLS

All brand available