ZK2108X4C/300 Counter-roatry deep hole drilling machine with good
entrance precision
For this counter-rotary four-spindle gun drilling machine, it
mainly use to drill the small hole diameter from 1.5mm to 8mm,
which drill from the two sides to get a higher entrance precision.
And it can process 22 workpiece at a time, which greatly improve
the processing efficiency.
Main technical parameter
Processing Ability
1.No. of spindle: 4 PCS(each side has 2 spindles)
2. Drilling diameter: 1.5mm---8mm
3.Drilling legth:300mm(from one side)
4.Outside diameter of the workpiece: ≤φ8.0mm
5.Workpiece length: 110mm---320mm
6.Quantity of the workpiece on the rack: 22pcs
Processing Speed
1． Max. rotary speed of the drill stem:15000r/min.
2． Rotary speed of the workpiece: 0 r/min.
3．Feed speed range: ≤1500mm/min.
4． Fast moving speed: ≤2000mm/min.
5. Moving speed of rack: 2000mm/min.
Processing Precision
1． Skewness of drilling hole: ≤1.0/1000 drilling length(workpiece
fixed, draw ratio≤100 )
2． Dimension accuracy: IT8---IT11
3． Roughness of the drilling hole: Ra0.4—Ra1.6
Power of Machine
1． Power of drill stem motor: 2X2.2KW(one motor for 2 spindles)
2． Power of oil pump: 2X4.0KW(one oil pump for two spindles)
3． Power of feed motor: 2X1.8 KW
4． Power of oil temperature coolant machine:2.87KW
Hydraulic System
1． Max. flow 4X20 L/Min
2． Max. pressure:16MPa
3． Filter precision: 10um.
4． Oil capacity: 960L
Basic Dimension & Weight
1． Ground area(L*W*H): 4000*3000*1800
2． Distance between drill stem center and ground:1070mm
3．Height from drill stem center to guide rail: 297mm
4. Distance between spindles: 220mm
5.Weight of machine: 6.5T
Machine processing part
Typical application: step hole of ejector sleeve, cam shaft etc.
shaft parts.
