ENGINEERING CONCEPTS

Lathe machine sizes and specifications

Lathe machines are widely used in workshops with desired sizes. The term swing denotes maximum diameter of the work and which can be accommodated on the lathe.

It will be observed that the swing is specified in the gap over the carriage and over the bed.

The measurements are helpful for indicate the maximum diameter of the work and which can be safely accommodated over these positions during the operations.

Important measurements for a lathe machine

  1. Maximum swing over the bed
  2. Height of centers over the bed
  3. Maximum swing over the carriage
  4. Maximum distance between the centers
  5. Length of bed
  6. Maximum swing in gap – in case of gap lathes only.

Lathe machine sizes and specifications

Name of the parts measurements
Maximum swing over the carriage 210 mm
Maximum swing over the bed 330 mm
Maximum distance between centers 600 mm
Height  of centers over the flat bed ways 165 mm
Width of bed 238 mm
Taper of center Spindle nose, Type and size – Threaded 2-3/8’’ dia X 8 TPI
Hole through the spindle (Diameter) 35 mm
Face plate diameter 300 mm
Maximum size of tool holder –  Square tool post 12.5 mm. sq.
Maximum size of tool holder – Single tool post 15 mm X 32 mm
Lead screw threads 8 T.P.I
Inch threads, T.P.I range (23 pitches) 4 to 40
Metric threads and pitch range  (33 pitches) 0.2 to 6.0 mm
Range of spindle speeds 22 to 750 R.P.M
No. of spindle speeds 8
Motor -1. H.P. 3- Phases, 400/440 V. 50 cycles