Description

Kirby CNC STRUT Grinder.

Seimens CNC Control.

Vertical Face Plate. 4 jaw chuck.

Built 1990. upgraded with Seimans control 2012.

Machine specifications

Swing in gap 2500 mm (98 inch) x 1000 mm (40 inch) gap length.

Note: Grinding gap length and swing in gap can be extended / raised if required.

Maximum distance between centres 4600 mm (180 inch)

External grinding 805 mm (31.6 inch) Dia x 2440 mm (96 inch) length.

Internal grinding to 1170 mm (46 inch) x 130 mm (4.1 inch).

Internal grinding to 508 mm (20 inch x 65mm (2.55 inch).

Internal Internal grinding to 1120 mm (44 inch) x 230 mm (9 inch).

grinding to 305 mm (12 inch) x 140 mm (5.5 inch).

Diamond dressing facility for internal and external grinding wheels

Adjustable headstock of 400 mm (15.74 inch).

Headstock swivel +/-7 degree.

Axis limits

X – + 45 mm (1.77 inch) to – 510 mm (20 inch) Internal spindle

X – + 45 mm (1.77 inch) to – 555 mm (21.8 inch) External spindle

Z – + 55 mm (2.16 inch) to – 2435 mm (95.8 inch)

U – + 385 mm (15.1 inch) to + 310 mm (12.2 inch)

W – + 5 mm (0.19 inch) to – 90 mm (3.5 inch)

Axis Speeds

X – 0 – 3000 mm / min (118 inches)

Z – 0 – 3000 mm / min (118 inches)

U – 0 – 2000 mm / min (78.7 inches)

W –0 – 2000 mm / min (78.7 inches)

Spindle speed ranges

Headstock Workhead     0 – 180 rpm

Wheelhead

External   – 600 to 1000 rpm

Internal 1 – 3000 to 3700 rpm

Internal 2 – 4800 to 5200 rpm

Internal 3 – 8000 to 8400 rpm

Coolant Unit 

2 Stage Filtering to 25 Micron

Tank capacity 1000 Litres

Electrical power

 Power supply                                415 volt, 3 phase 50 Hz

Headstock motor                           14kw

External wheel motor                    11kw

Internal; wheel motor                    4kw

Gap slide adjustment motor           1.5kw

Coolant System                             4kw

Lubrication pump                          0.12kw

Machine dimensions

Length                                           10,090 mm (397 inches)

Width                                            6200 mm (244 inches)

Height                                           3575 mm (140 inches)

Machine weight                             40,000 kgs (88,000 lbs)

Accessories

10 off assorted internal grinding spindles ranging from 500 mm (19.6 inches) to 1600 mm (63 inches) in length .

Boxes of assorted New and Used grinding wheels for internal and external grinding.

1 off Brand new Norton grinding wheel (Still in Box)

760x75x304.8 / MOS 33 M/S 830 RPM

107390298 / GG253173381

2 off steady rests.

The machine was built in 1990. The Siemens CNC control was upgraded in 2005.

This machine was previously re-grinding Struts at the Royal Australian Airforce Facility.