DANUNI - Cylindrical grinding machine

High precision grinding machine for aerospace landing gears
DANUNI Landing gear grinding machine DANOBAT
DANUNI Landing gear grinding machine DANOBAT

DANUNI series for precision grinding of different aircraft landing gear struts. DANUNI machine range has been designed and developed for precision external and internal grinding of different aircraft landing gear struts, such as complex shaped pistons internal and external cylinders.

The DANOBAT Gap Bed Grinding Machine revolutionises the grinding process because it can swing the whole component between centres. With DANOBAT grinding machine range customers can obtain reduction of up to 50% in machining overhaul times due to the integration of OD and ID operations in one machine, providing a fast R.O.I.

A truly cylindrical and parallel surface is guaranteed which is superior to the results obtained with previously used grinding techniques. In the case of overhaul, this ensures that old plating is removed correctly. When the component is returned for final machining, the depth of plating is known accurately and is of uniform thickness. This level of precision, speed and accuracy is far superior to results previously obtained.

The machines are offered in different sizes, models and configurations depending on the application and customer requirements. Landing gear components requiring a swing of up to 6500 mm can be handled. In addition the machine can grind internal bores up to 2550 mm in length.

Workpiece length: up to 3750 mm

Grinding wheel diameter: up to 915 x 75 mm

Max. part swiveling: up to 6500 mm

Machining processes

Internal cylindrical grinding

Internal cylindrical grinding

External cylindrical grinding

External cylindrical grinding

Superfinishing

Superfinishing

Thread turning

Thread turning

Horizontal turning

Horizontal turning

Characteristics

 

2500/2500

3050/3750

4100/3750

7000/1000

Swing in gap

mm

in

2500

100

3050

120

4100

160

6500

256

Length between centres

mm

in

2500

100

3750

147

3750

147

2200

87

Width of gap

mm

in

800

31

1400

55

1400

55

1000

40

Swing over the table

mm

in

840

33

1600

63

1600

63

1600

63

Grinding wheel dimensions

mm

in

915 x 75

36 x 3

915 x 75

36 x 3

915 x 75

36 x 3

915 x 75

36 x 3

External spindle power

kW

hp

20

27

20

27

20

27

20

27

Internal spindle power

kW

hp

9

12

9

27

9

27

N/A

N/A

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Applications

Machining test
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