PM 430 460 en

Heavy-Duty Crankshaft Grinders PM 430 PM 460

A world first: Pendulum grinding of heavy-duty crankshafts.

Grinding of main and pin bearings on one machine, using traditional corundum or CBN grinding wheels. High productivity rates and flexibility. Fully automatic, semi-automatic or manual grinding processes.

A new generation of grinders with all the features of cutting edge grinding technology.

P M P M

2

4 3 0 4 6 0

H EAV Y- D U T Y CRA N KSH A FT GR IN D E R

3

Series PM 430 / 460.

The PM 4 series machines feature linear

The grinding spindle is designed like a

motors and hydro-static guideways

motor spindle with a maximum power

in X- and Z-axis, making them highly

rating of 100 kW. Higher torque rates are

dynamic and guaranteeing excellent

achieved with an optional auxiliary motor

grinding results. The workpiece is driven

and belt-based speed transmission.

from both ends, using either drivers or

All operator interfaces are easy to use,

hydraulic chucks, depending on the

allowing for quick workpiece change-

application. The work spindle is directly

overs and resulting in high output rates.

driven by a torque motor.

The machine is completely enclosed and features automatic front doors that provide easy access to the machining area.

P M P M

4

4 3 0 4 6 0

5

Quality – productivity – flexibility.

•• In-process diameter gauging for the highest possible precision and to

force transfer into the work table,

machine

offering support and maximum stock

the shaft prior to grinding, to ensure the highest possible component

6

4 3 0 4 6 0

•• Rigid twin-axis NC steady rests with

carry out roundness checks on the •• Universal axial and radial alignment of

P M P M

quality and maximum flexibility

removal rates

7

Technical Data.

Capacity

PM 430

PM 460

Workpiece length, max.

mm

3,000

6,800

Workpiece weight, max.

kg

3,000

5,000

Swing diameter, max., with corundum wheel*

mm

750

750

Swing diameter, max., with CBN wheel*

mm

500

–

Stroke radius, max.*

mm

175

175

approx. mm

1,470

1,470

mm

300

300

Diameter, corundum wheel*

mm

1,400

1,400

Diameter, CBN wheel*

mm

900

–

Max. wheel width – corundum

mm

200

200

mm

80

80

m/s m/s

45 125

45 – emulsion

Grinding center above the bottom edge of machine Main bearing diameter, max.

in

lb in in in

approx. in in

118

6,614 29.5 20 7

58

12

268

11,023 29.5 –

7

58

12

Grinding wheels

– CBN Cutting speed, max.

– corundum wheel – CBN wheel Coolant

in in

in in

55

35.5

8 3

55 –

8 3

Drives X- and Z-axis Feed force X / Z Rapid-traverse rate X / Z

Nm

ft-lb

m/min

SIEMENS linear motor 5,190 5,190 3,828

3,828

25 / 15

25 / 15

ipm

984 / 591

984 / 591

Length a

mm

7,550

9,950 / 12,000

Width b

mm

3,100

3,100

Height c

mm

4,000

4,000

kg

38,500

41,000 / 50,000

Control system SIEMENS SINUMERIK 840 D solution line Dimensions and weights

Weight

*

8

in in in

lb

297 122

157.5

84,878

391.5 / 472.5 122

157.5

90,390 / 110,231

It is also necessary to have individual checks, taking account of workpiece geometry and aspects of back rest and oscillation

c

Floor plan PM 430 / PM 460

b

a

Subject to technical changes

9

At home in the world.

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10

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