Turning Spindle

Turning spindles have many significant applications in different types of industries. In production, mining, agriculture, packaging and many more industries have been running and using turning spindles. They are designed to have a very thermally stable nature. Turning spindles are widely used in horizontal or vertical lathes and turning centers.


Features of Turning spindles

• Turning spindles have different bearing arrangement like angular contact ball bearings in the front or high precision cylindrical roller bearings in the rear.
  
  
• Motor driven turning spindles are equipped with asynchronous motors which are equipped with encoder allowing accurate rotation control.
  
  
• Different designs are available for standard speeds and maximum stiffness.
  
  
• The housing of the turning spindle can be of block type or cartridge type.

Advantages of Turning Spindles
The main characteristics of turning spindles are:

• High cutting forces
• High productivity
• Flexibility
• Robust and compact
• Thermally stable behavior

Types of Turning Spindles
There are primarily three types of turning machine spindles. They are:

• Belt driven turning spindles
• Motor integrated turning spindles
• Gear driven turning spindles

Spindles in a turning machine
The first consideration in every turning machines is the orientation of the spindle. There are three basic options:

• Horizontal: In a horizontal or a traditional turning machine, the spindle is usually on the left side of the work area and cutting tools move from the top or side.
  
  
• Vertical: For this, just flip a horizontal machine on its side which leads to the spindle on the bottom of the work area and the cutting tools move from the right or left. A basic advantage of this design is that the machine uses less floor space. Another advantage is that it permits putting machines close together so manual loading or unloading become simple. When it comes to fixturing parts, vertical turning machines have a gravitational advantage.
  
  
• Inverted Vertical: If the vertical machine is turned upside down, the spindle is at the top of the work area. This helps in solving the problem with chip control, as chips no longer collect inside the machine.

Turning spindles in wood working
Wood turning is actually a type of woodworking that is used to create wooden objects on a lathe. Turning spindles are widely used in wood turning. Here, the spindle helps the grain of the wood to run lengthwise, parallel to the bed of the lathe.

Diamond turning spindles
These turning spindles are very dynamically balanced to a very high accuracy. They operate with low noise integral electric motors, supported by high stiffness air bearings and the driven shaft of such spindles has no external influences.