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 complexly 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 a 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 an 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 are 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 4100 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 swivelling: up to 4100 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

Swing in gap

mm

2500

3050

4100

in

100

120

160

Length between centres

mm

2500

3750

3750

in

100

147

147

Width of gap

mm

800

1400

1400

in

31

55

55

Swing over the table

mm

840

1600

1600

in

33

63

63

Grinding wheel dimensions

mm

915 x 75

915 x 75

915 x 75

in

36 x 3

36 x 3

36 x 3

External spindle power

kW

20

20

20

hp

27

27

27

Internal spindle power

kW

9

9

9

hp

12

27

27

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Applications

Machining test
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