Index, G 250, CNC Turning and Milling Center, 2012

Overview

1. CNC turning and milling center

2. Control: C200-4D Siemens 840 D

3. Country of origin: Germany

4. Precision package for main or counter spindle; selected headstock

5. Bearingless clamping cylinder

6. Fine balancing of work spindle, clamping cylinder and collet clamping

7. Under power; can be inspected running

Working Range

1. Swing diameter 560 mm (22.0 in)

2. Turning length 800 mm (31.5 in)

3. Travel X 300 mm (11.8 in), Z 800 mm (31.5 in)

Main Spindle

1. Spindle head 8 DIN 55026/55021 ISO 7027/1

2. Bar capacity 90 mm (3.5 in)

3. Spindle diameter in front bearing 140 mm (5.5 in)

4. Speed range ~3,500 rpm

5. Drive power 100% / 40%: 43 / 57 kW (57.7 / 76.4 hp)

6. Torque 275 / 363 Nm (203 / 268 lbf ft)

7. Indexing 2.5 deg; C-axis 0.001 deg

Tool Turret

1. 1 turret, 12 tool positions

2. Driven tool speed ~6,000 rpm; driven tool power 11 kW (14.8 hp); torque 21.5 Nm

3. Tool holder 40 x 63 mm DIN 69880

Feed System

1. Rapid traverse X/Z 30 / 22.5 m/min (98.4 / 73.8 ft/min)

2. Feed force X 7,200 N, Z 9,000 N

Tailstock

1. Quill diameter 65 mm (2.6 in); taper SK 30

2. Longitudinal travel 800 mm (31.5 in); rapid 10 m/min (32.8 ft/min)

Power And Dimensions

1. Total power requirement 51 kVA; 400 V 50 Hz

2. Machine weight approx. 14 t (30,900 lb)

3. Space required approx. 7.3 x 4.0 x 2.6 m (24.0 x 13.1 x 8.5 ft)

Accessories

1. Chip conveyor

2. Coolant system 80 l/min (21.1 gal/min), 8 bar (116 psi)

3. 3-jaw chuck SMW KNCS-N 225-65-3

4. Extraction system; signal lamp; automatic door

5. Hollow clamping device D90

6. Tool holders approx. 55; driven tools approx. 15