China Zk2102b Zk2103b Zk2104b CNC Deep Hole Drilling Machine

ZK21xxB CNC deep hole drilling machine
This machine is a special purpose CNC deep hole drilling machine with high efficiency, high accuracy and high automatization, by metal chips external removing method (gundrill method), once continued drilling can replace drilling, boring and reaming etc. many machining procedure, and obtain the same machining accuracy and surface roughness. controlled by CNC system, not only has the machine single moving function, but also automatic cycle function.The Max. drilling depth of this machine is 2500mm, its large clamp Dia. of workpiece is suitable for large workpiece. This machine can drill through hole, blind hole and step hole, mated with special holders, it can also drill eccentricity hole and slant hole.

Characteristic of the machine
All the bed and boxes of the machine adopt fine casting, so they have good rigidity and stability.
The cutter need not untread during machining.
Controlled by CNC system, the automatization is high.
Feed system is diven by AC servo motor and ball screw couples with stepless speed.
Adopt slide guide way, glued plastic on the moving parts, the low speed travel is smooth, has not crawl.
The spindle speed of the travel headstock with rotating drilling bar is stepless.
Spindle bearing and surface of guide way are lubricated intermittently.
High pressure coolant system adopt frequency converting motor to drive gear pumps, and adopt immerged oil temperature controller.
Adopt automatic metal chips conveyer.







Main specification and features

TECHNICAL SPECIFICATIONZK2102BZK2103BZK2104BMachining scopeSpindle number111Range of drilling Dia.3-20mm6-30mm10-40mmMax. drilling depth2500mm2500mm2500mmTravel headstock with rotating drilling toolMax. rotating speed(stepless)7000r/Min600r/Min3000r/MinMain motor power4kW5.5kW7.5kWFeed of toolSpeed range(stepless)5-500mm/Min5-500mm/Min5-500mm/MinRapid moving speed3m/Min3m/Min3m/MinMotor torque7.7N.M10N.M10N.MCoolant systemMax. pressure10MPa10MPa10MPaMax. flow100L/Min100L/Min150L/MinothersGeneral power(Approx.)20kW22kW38kWOverall size(LxWxH)7.5x3.4x1.6m7.5x3.4x1.6m7.5x3.4x1.6mGenral weight(Approx.)8t8t9tMachining accuracyAccuracy of Dia. of holeIT7-IT11roughnessRa0.4-3.2µmDeflexion of hole center line(ratioof length and Dia.≤100:1)Workpiece is stationary:≤1mm/1000mm;workpiece is rotating:≤0.5mm/1000mm.Linearity of the hole≤0.05mm/100mm.(ratio of length and Dia.≤100:1)
Standard sheme:
KND KND1000Ti-A or GSK 980T CNC system, transiversal travel holder, web type filter, manual pulse control box, vibration damper steady of drilling bar, automatic chip conveyer,centred lubrication station, special purpose coolant system, alarm light, tools, work light, levelers, oil temperature controller, hydraulic system etc.
Optional devices:
FANUC 0i mate MD or SIEMENS 828D CNC system,accessories and adaptures, cutting oil, cutter grinder or grinding device,drum metal chips conveyer,magnetic chip conveyer, air conditioner of electric control box, drilling cutter and adapters, drilling oil, oil throwing machine, headstock.