PTM 400

4

TECHNICAL SPECIFICATIONS:

4.1

CAPACITIES

4.1.1

WORKING AREA

(i)

Type of bed

Slant Type

(ii)

Swing over bed

650 mm

(iii)

Max. turning dia

650 mm

(iv)

Distance between centre

1050 mm

(v)

Max. turning dia. Over cross slide

400 mm

(vi)

Max. turning length.

1250mm

4.1.2

SPINDLE

(i)

Spindle Nose

A2-8

(ii)

Hole through spindle

80 mm

(iii)

Spindle Socket Taper

A2-8type

4.1.3

SPEEDS

(i)

Spindle speed range

20-2800 rpm

(ii)

Type of spindle drive

20kw , AC variable speed motor.

4.1.4

LONGITUDINAL FEED DRIVE

(i)

Feed range

1-10000 mm/min

(ii)

Rapid traverse rate

10000 mm/min

(iii)

Stroke

1250 mm

4.1.5

CROSS FEED DRIVE

(i)

Feed range

1-10000 mm/min

(ii)

Rapid traverse rate

10000 mm/min

(iii)

Stroke

380 mm

4.1.6

TAILSTOCK

(i)

Tailstock Spindle Diameter

100 mm

(ii)

Spindle Stroke (hyd)

100 mm

(iii)

Spindle Taper

MT5

4.1.7

TURRET

(i)

Type

Pragati 100

(ii)

No of Tools (Internal / External )

12 No's

(iii)

Turret indexing position

12 ( Bi-Directional, Shortest Path)

(iv)

Turning Tool Shank size

25 x 25 mm

(v)

Max.Boring Bar size

40 mm

4.1.8

Tool Holder Location

4.1.9

DRIVEN TOOLS

(i)

No's of rotating tools

8 No's. (Maximum 4 Radial & 4 Axial
rotating tools)

(ii)

Speed

3000 RPM or more

(iii)

Type of tool drive

AC Servo motor

4.1.10

C-AXIS

(i)

Type of Interpolation

2 Dimensional (C/X or C/Z)

(ii)

Interpolation range

±9999.99Degree

(iii)

Feed range

1 Deg/Min to 7200 Deg/Min

(iv)

Input/Output Resolution

0.01 Deg

4.1.11

POWER

(i)

Spindle Power (Continuous / 30min.)

20 KW

(ii)

Incoming Supply

415±10%, 50Hz, 3 Phase

(iii)

Spindle motor perform power rating test

30 minute continuous running at 100
% or Maximum rating (whicheve is higher)at the time of PDI & Installation at premises.

4.1.12

CNC SYSTEM (Suitable to cover driven tool & C axis operation also)

Latest version ( at the time of quotation)of SIEMENS / Equivalent OEM  with Industry 4.0
ready.

4.1.13

ACCURACY (As per VDI/DGQ 3441 Standard )

(i)

Positioning X – Axis+-

+- 0.005 mm

(ii)

Positioning Z - Axis

+- 0.005 mm

(iii)

Repeatability X - Axis

+-0.005 mm

(iv)

Repeatability Z - Axix

+-0.005 mm

4.1.14

Geometrical accuracy as per DIN standard

Firm has to submit manufacturers test chart for geometrical accuracies as per DIN standard along with
technical bid.

4.1.15

SIZE OF MACHINE LxWxH

2500 x 3000 x 1900 mm aprox

4.1.16

Machine Weight

5500 kg

4.2

STANDARD FEATURES

(i)

AC servo motor with digital drive for all axes

Siemens make

(ii)

AC variable speed spindle motor (Servo)

Siemens make

(iii)

Over load trip function for AC Servo motors for all axes.

Siemens make

(iv)

Hardened and ground linear motion / rectangular guideways.

THK

(v)

Gearless headstock with poly V-belt drive to reduce vibration, noise and
heat built up of the headstock.

Pacemaker made

(vi)

Preloaded ball screws & nuts for Longitudinal and cross drives to minimize backlash. Machine should have C3-class ball screws or latest applicable for both axes. Firm to submit test certificate from
manufacturer along with the machine.

PMI

(vii)

Bed guideways should be protected by wipers / telescopic cover.

PMI

(viii)

Operator station should conveniently position on the machine to carry
all the manual control.

Front

(ix)

Pressure gauges should monitor all hydraulic functions.

Chuck and tailstock

(x)

Autometic centrilized lubrication system should provide for all elements
requiring intermittent lubrication.

Yes

(xi)

Spindle bearings should be life grease packed or latest applicable.

Yes

(xii)

Air conditioning for electrical cabinate & operator panel with
temeprature control.

yes

(xiii)

Central Hydraulic unit.

yes

(xiv)

Foot pedal switch for chuck of main spindle and tailstock.

yes

(xv)

Sliding guards with safety latches and switches shall be provided.

yes

(xvi)

All around machine enclosure.

yes

(xvii)

Programmable tailstock

yes

(xviii)

Spindle and chuck should be dynamic balanced suitable to offered RPM
capacity of the machine.

yes

(xix)

Machine shall be able to interface with latest CAD / CAM software through external programming facility with Ethernet feature & USB
port.

yes