LATHE CHUCKS

LATHE MACHINE

Workpieces of short length, large diameter and irregular shapes, which can not be
mounted between centers, are held quickly and rigidly in chuck.There are different types of
chucks namely, Three jaw universal chuck, Four jaw independent chuck, Magnetic chuck,
Collet chuck and Combination chuck.

a) Three Jaw Self-Centering Chuck

b) Four Jaw Independent Chuck

c) Magnetic Chuck

Three Jaw Self-Centering Chuck

The three jaws fitted in the three slots may be made to slide at the same time by an
equal amount by rotating any one of the three pinions by a chuck key.This type of chuck is
suitable for holding and rotating regular shaped workpieces like round or hexagonal rods
about the axis of the lathe. Workpieces of irregular shapes cannot be held by this chuck.

The work is held quickly and easily as the three jaws move at the same time.

Three Jaw Self Centering Chuck

Four Jaw Independent Chuck

There are four jaws in this chuck. Each jaw is moved independently by rotating a
screw with the help of a chuck key. A particular jaw may be moved according to the shape
of the work. Hence this type of chuck can hold woks of irregular shapes. But it requires
more time to set the work aligned with the lathe axis. Experienced turners can set the work
about the axis quickly. Concentric circles are inscribed on the face of the chuck to enable
quick centering of the workpiece.

Four Jaw Independent Chuck

Magnetic chuck

The holding power of this chuck is obtained by the magnetic flux radiating from the electromagnet placed inside the chuck. Magnets are adjusted inside the chuck to hold or release the work. Work pieces made of magnetic material only are held in this chuck. Very small, thin and light works which cannot be held in an ordinary chuck are held in this chuck.

Magnet Chuck

Preet Lathe offers all of the above chuck fitted as well as standalone. Our range of All Geared Lathe Machine & Conventional Cone Pulley Lathe comes along with these chucks.

Horizontal Boring Machine

Horizontal Boring Machine

Preet Lathe has stepped up in the stream of machinery and looking forward to extend it more. We

have introduced PREET " Horizontal Boring Machine" with utmost feature and depending upon our same

technology to give the same output i.e. Accuracy with High Precision Engineering.

Here is first look of us as Horizontal Boring Machine Manufacturer.

Heavy Duty Lathe

Heavy Duty All Geared Lathe

Heavy Duty All Geared Lathe are famously known as Roll Turning Lathe because of their sizes, Big Bore & mainly Center Height. Heavy Duty Lathe Manufactured by Preet Lathe comes along with Taper Bed which means it gives more stability, least Vibration and Low RPM to cultivate Heavy Jobs.

In this video, machine has All Geared Headstock which gives an ease while changing the speed of the chuck or in other words to control the RPM. It had 18 different speeds, which in returns helps to choose the speed of the choice.

Thread Cutting on Lathe

Thread Cutting

Thread cutting on All Geared Lathe Machine is one of the most important operations performed in a lathe. The process of thread cutting is to produce a helical groove on a cylindrical surface by feeding the tool longitudinally.

Thread Cutting On All Geared Lathe

 1. The job is revolved between center or by a chuck. The longitudinal feed should be
equal to the pitch of the thread to be cut per revolution of the work piece.

2. The carriage should be moved longitudinally obtaining feed through the lead-screw
of the lathe.

3. A definite ratio between the longitudinal feed and rotation of the headstock spindle
should be found out. Suitable gears with required number of teeth should be mounted on the
spindle and the lead screw.

4. A proper thread cutting tool is selected according to the shape of the thread. It is
mounted on the tool post with its cutting edge at the lathe axis and perpendicular to the axis
of the work.

5. The position of the tumbler gears are adjusted according to the type of the thread

6. Suitable spindle speed is selected and it is obtained through back gears.

7. After the process of thread cutting is over, the thread is checked by suitable
gauges.

Taper Turning Attachment

Taper Turning Attachment in Lathe 

The advantage of this method is that long tapers can be machined & is offered by Preet Lathe . As power feed can be employed, the work is completed at a shorter time. 

Preet Lathe manufacturers taper attachment consists of a bracket which is attached to the rear end of the lathe bed. It supports a guide bar pivoted at the center. The bar having graduation in
degrees may be swiveled on either side of the zero graduation and set at the desired angle
to the lathe axis. A guide block is mounted on the guide bar and slides on it. The cross slide
is made free from its screw by removing the binder screw. The rear end of the cross slide
is tightened with the guide block by means of a bolt. When the longitudinal feed is engaged,
the tool mounted on the cross slide will follow the angular path as the guide block will slide
on the guide bar set at an angle of the lathe axis. The depth of cut is provided by the compound
slide which is set parallel to the cross-slide. All Geared Lathe Machine are offered with Taper Turning Attachment.