The machine is a special deep hole drilling machine for customers by our company's professional technicians. The machine bed adopts double flat guide rails with a width of 800mm and a large bearing capacity. The guide rail of bed adopts one flat and one rhombus, with the width of 650mm; the guide precision is good. The machine can drill and expand the inner hole Drilling hole diameter accuracy IT9-11. Surface roughness ra6.3; when fine boring : aperture precision IT9-10. Surface roughness: Ra6.3.
Technical parameters of machine tool:
Drilling diameter range：……………………………Φ30～Φ100mm
Maximum depth of boring……………………………………3m
Center height (from flat guide to spindle center)………………700mm
Diameter of of drill box spindle ………………………………70mm
Taper hole at the front end of drill box spindle ………………………φ80mm，1：20
Spindle speed range and step of drill box spindle …………………40～500r/min 12steps
Feed speed range………………………………5～500mm/min (stepless)
Rapid speed of carriage…………………………2m/min
Main motor…………………………………N=30kW，n=1460r/min
Rapid motor……………………………………………N=4kW
feed motor……………………………… N=5.5kW（AC servo）
Cooling pump motor…………………………N=11kW，n=1450r/min
Hydraulic pump motor…………………………N=1.5kW，n=1440r/min
Rated pressure of cooling system……………………………2.5Mpa
Cooling system flow………………………………………200L/min
Rated working pressure of hydraulic system……………………………6.3MPa
Maximum pushing force of pressure head on workpiece………………………20kN
