These lathes were first developed in the united states of america by pratt and whitney in 1960.
Drum type turret lathe machine.
When the tool needs to be changed there is no need to move the whole saddle but the turret can be adjusted within the saddle itself.
Capstan lathe is one of the types of semi automatic lathe.
This lathe has higher rigidity accurate work piece positioning and is easy to operate.
The turret lathe is another type of lathe machine.
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Ram type turret lathe.
This eliminates complex gear boxes and transmissions found on mechanically driven lathes.
Turret lathe is used for mass production and the advantage of this lathe is a less skilled operator can perform work on it once all setup is done properly.
The heavy duty extended rl 8500xlt combination brake lathe is capable of truing a full 10 deep brake drum.
The brake drum shoe can be cut on the first spindle and the brake disc can be cut on the second spindle.
The turret or saddle type lathe.
A capstan and turret lathe is a production lathe.
It is used to manufacture any number of identical pieces in the minimum time.
A turret lathe is a manual lathe having a hexagonal tool holding turret in place of the tailstock of an engine lathe.
This is a special kind of a turret lathe in which the turret or the tool mounting platform is mounted on a slide or ram which is in turn mounted on a saddle that is clamped on the machine bed.
The hexagonal turret as shown in the figure.
It features independent dc servo motors to command both the spindle feed drives and cross feed drives.
These types of lathes are used for some special purposes as per their name.
It is used for repetitive production of same duplicate parts which by the nature of their cutting process are usually replaceable.
The headstock in most cases is geared with provision for 6 to 16 spindle speeds and may double this capability with a twospeed motor.