Heald 276 EXT BRIDGE INTERNAL GRINDER

Swing 16 in
Max grinding bore 8.5 in
Minimum hole diameter 1/8 in
Hole length capacity 12 in
Table travel 30.25 in
Workhead swivel 60°
Wheel head cross slide swivel 4°

Workhead power 1.8 hp
Workhead speed 400 rpm
Workhead speeds 400 / 266 / 200 / 133 rpm

Wheel head motor power 5 hp
Wheel head motor speed 3600 rpm

Hydraulic pump motor 2 hp
Coolant pump motor 0.5 hp

Roughing cross feed 0.0001–0.0005 in
Finishing cross feed 0.0001 in
Power cross feed 0.038–0.042 in (dia.)
Wheel wear compensation manual 0–0.004 in

Table speed rapid 30 FPM
Table grinding speed 0–20 FPM

Oil tank capacity 15 gallons
Coolant tank capacity 55 gallons

Machine weight approx. 11,000 lbs
Base dimensions 117 x 36 x 140 x 36 in

4-speed work head
Red Head grinding spindle
3 roller steady rest
10 in 3-point steady rest
12 in 3-point steady rest
Single point diamond dresser
Coolant pump and tank
Trip dogs
Allen Bradley controls
Servo motor and ball screw cross slide
Front mounted guards
Electrical system included
Standard wheel flange 6-bolt pattern
440 V supply