Zk21xxf CNC Deep Hole Drilling Machine
Dec 27, 2018
Basic Info
  • Model NO.: ZK21xxF

  • Layout: Horizontal

  • Number of Shaft: 2

  • Automatic Grade: Automatic

  • Certification: ISO 9001, ISO14001 ISO18001

  • Drilling Hole Diameter 3-30: Deep Hole Drilling Depth 500-2500mm

  • Specification: SGS

  • HS Code: 8459210000

  • Structure: Deep Hole Drilling

  • Controlling Mode: CNC

  • Hole Diameter: 3-30mm

  • Precision: High Precision

  • Condition: New

  • Trademark: precion

  • Origin: Dezhou Shandong, P. R. China

Product Description
ZK21xxF 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. therefor it is suitable for both small and large batch production. 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.
Adopt whole closed guard cover with convenient view windows and beautifule outline.
With multi-automatic surveillant and controll devices.
Main specification and features
Technical specificationTechnical parameter
Machining scopeNumber of spindles121
Distance between spindles
Drilling Dia.3-20mm6-30mm
Max. drilling depth500/1000mm440/950mm500/1000mm
Travel headstock with rotating drilling barMax. rotating speed of spindle7000r/Min6000r/Min
Main motor power4kW4kW×25.5kW
Feed of cutterSpeed range(stepless)5-500mm/Min 5-500mm/Min5-500mm/Min
Rapid travel speed3m/Min3m/Min
Motor torque7.7Nm7.7Nm
Coolant systemMax. pressure10MPa
Max. flow100L/Min
othersGeneral power(approx.)20kW24kW22kW
Outline size(L×W×H)3.5/4.7×3.2×1.8m
General weight(approx.)4/5t
Machining accuracyHole Dia. accuracyIT7-IT11
Deflexion of hole center lineWorkpiece stationary:≤1mm/1000mm;workpiece rotating:≤0.5mm/1000mm.(ratio of length and Dia.≤100:1)
Linearity of hole≤0.05mm/100mm.(ratio of length and Dia.≤100:1)

Standard sheme:
KND KND or GSK CNC system, manual pulse control box, vibration damper steady of drilling bar, chain plate type automatic chip conveyer,whole closed guard cover, 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,drilling cutter and adapters, drilling oil, cutter grinder or grinding device, oil throwing machine,  magnetic metal chips conveyer,air conditioner of electric control box, hydraulic tailstock, holders, headstock.

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