Precision Conepully Centre Lathe Machine

GENERAL DESCRIPTION                                                                                                     

CENTRE LATHES are well suited for all common turning surfacing and screw cutting operations with accuracy conforming to nearby grade-1 limits. These are specially designed for continuous light and heavy duty jobs and to give prolonged efficient life. These lathes are worthy of a place in every machine shop where economy of operation, precision and reliability are primary considerations.

 

THE BED is made of close grained cast iron, having unusual strength and long wearing qualities. It is machined and ground to finish and is well bricked to withstand vibration free operation, under heavy cutting load. The Casting is fully seasoned and removal gap piece is fixed.

HEAD STOCK The flat seat of head stock over the bed is perfectly matched by precision hand scrapping. Its spindle is made from high carbon steel which rotates on two TAPPER ROLLER BEARING 1 compositions both at the front and at the back for smooth running and perfect balancing. The machines are also made with head stocks fitted with Gun Metal Bushes & Tapper Roller thrust Bearings. During the operation of the machine eight different feed movements can be arranged by means of specially constructed four step cone extraction VEE Belt gear mechanism. The head stock gears have HELICAL HOB-CUT TEETHS.

THE APRON is of double well design with independent drive motion for feeds and screw cutting. Simultaneous arrangement of feed and screw cutting is prevented by an interlock mechanism.

THE TAIL STOCK is of special and sturdy design. It is guided inverted 'V' and flat way bed independent of the saddle guides and has on offsetting device for tapper turning.

THE SADDLE is of heavy design for stable rigid longitudinal movement. A Compound Rest accurately graduated is mounted on the saddle for conical turning and can be swiveled on either side. A revolving four way steel Tool post is provided. The Rack is of steel with machine cut teeth.

Standard Accessories:- One face plate, one coupling, one steady rest, one follow rest, two Morse Taper centers, oil tray, thread dial indicator and 22 machine cut change wheels.

 

Optional Accessories:-  Electric motor, starter, panel Board, much or electric coolant pump, 4-jaw independent chuck, 3-jaw self-centering chuck, gear to cut metric threads, tapper turning attachment, tool post grinder, light arrangement & Norton Gear Box etc.

TECHNICAL SPECIFICATIONS

MODEL

ST-4

ST -6

SMT-8

DK-10

SMT-12

SMT-16

SMT-20

Length of Bed

Width of Bed

Centre from Bed

Width of Gap

Swing over Saddle (dia.)

Swing in Gap (dia.)

Admit between Centre’s

Hollow Spindle

No. of Spindle Speeds

Dia. of Lead screw

Dia. of Feed shaft

Power Required

R.P.M. of motor (Approx.)

Net Weight (Approx.)

4'-6"

12"

10"

5"

10"

28"

2'-3"

1.3/4"

6

1.3/8"

1"

1 H.P.

1440

800 kgs.

6'-0"

14"

12"

8"

16"

36"

3'-0"

2.1/8"

6

1.5/8"

11/8"

2 H.P.

1440

1200 kgs.

8'-0"

16"

14"

10"

21"

41"

4'-6"

3.1/8"

6

1.5/8"

1.1/8"

3 H.P.

960

1800 kgs.

10'-0"

18"

16"

12"

24"

47"

5'-8"

3.5/8"

6

1.1/2"

1.3/8"

3 H.P.

960

2300kgs.

12'-0"

20"

18"

14"

26"

54"

7'-6"

4.1/8"

6

1.3/4"

1.3/8"

5 H.P.

960

2800 kgs.

16'-0"

22"

20"

14"

30"

60"

11'-0"

4.1/8"

6

1.3/4"

1.3/8"

5 H.P.

960

4200 Kgs.

20'-0"

22"

20"

16"

30"

60"

15'-0"

4.1/8"

6

2"

1.1/2"

7 H.P.

960

5200 kgs.

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