Dowell HR300 Precision Rotary Grinding Machine

Precision grinding machine.
Surface finishing to mirror class.
Automatic Trim Compensation.
On line spindle vibration monitor.
Machine base fully supported design creating high rigidity structure.
Y, Z axis and rotary driven by AC servo motor.



DESCRIPTION UNIT HR-300AND

Rotary magnetic chuck dia. mm 300
Maxi grinding radius mm 175
Distance of table surface to spindle surface center mm 360
Rotary magnetic chuck speed r.p.m. 20-250
Rotary magnetic chuck horse power W 750
Spindle motor HP 3
Spindle speed (50/60Hz) r.p.m. 3000/3600
Auto downfeed horse power W Servo Motor 500
Vertical hand wheel downfeed per revolution MPG/ mm x1, x5, x10 /0.1, 0.5, 1

Vertical hand wheel downfeed per graduation MPG/mm x1, x5, x10 /0.001, 0.005, 0.01
Wheel size (dia x width x bore) mm 180x13x31.75
Net weight / gross weight (approx) kg 1600/1800
Packing size (LxWxH) mm 2050x1450x2020