Gildemeister, Knoll B4N 1120 rpm

Deep Hole Borer
Swing over bed 815 mm
Spindle speeds 56–1120 rpm
Bore of spindle 113 mm
Max torque of spindle 600 m/kp
Feed range in two ratios 8–2500 mm/min
Headstock motor 75 kW
Max solid boring 120 mm
Max counter boring 300 mm
Max trepanning 300 mm
Bed width 530 mm
Bed lengths 3 x 5 m, 1 x 4 m, total length 19 m
Estimated max boring length 7,500 mm
Headstock 1,000 mm
Obstructions boring carriage 900 mm
Sealing head carriage 900 mm
Boring bar dampers 210 mm each
3 x 3 point roller steadies 60–500 mm capacity
3 x boring bar dampers
4 jaw chuck