Zk21xxg CNC Deep Hole Drilling Machine

• Customization: Available
• Structure: Deep Hole Drilling
• Layout: Horizontal
• Model NO.: ZK21xxG
• Controlling Mode: CNC
• Number of Shaft: 2
• Hole Diameter: 2-40mm
• Automatic Grade: Automatic
• Precision: High Precision
• Certification: ISO 9001, ISO14001 ISO18001
• Condition: New
• Drilling Hole Diameter 2-40: Deep Hole Drilling Depth 500-1000mm
• Transport Package: Wooden Packing
• Specification: SGS
• Trademark: precion
• Origin: Dezhou Shandong, P. R. China
• HS Code: 8459210000
• Production Capacity: 40

Product Description

       ZK21xxG 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.
The movement of the cutter adopt rolling linearity guide way.
The clamp of the workpiece adopt high precision chuck and hydraulic steady rest so as to realize self centering clamp accurately.
The Min. drilling diameter is Φ2mm.
Feed system is diven by AC servo motor and ball screw couples with stepless speed.
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 specification		Technical parameter
		ZK2102G	ZK2102G×2	ZK2103G	ZK2103G×2	ZK2104G
Machining scope	Number of spindles	1	2	1	2	1
	Distance between spindles		180mm		180mm
	Drilling Dia.	2-20mm		2-30mm		4-40mm
	Max. drilling depth	500/1000mm
Travel headstock with rotating drilling bar	Max. rotating speed of spindle	7000r/Min		6000r/Min		5000r/Min
	Main motor power	3.7kW	3.7kW×2	5.5kW	5.5kW×2	7.5kW
Feed of cutter	Speed range(stepless)	5-500mm/Min
	Rapid travel speed	3m/Min
	Motor torque	7.7Nm	10Nm	7.7Nm	10Nm	10Nm
Coolant system	Max. pressure	10MPa
	Max. flow	100L/Min		150L/Min
others	General power(approx.)	20kW	24kW	22kW	28kW	25kW
	Outline size(L×W×H)	4.05/5.05×4.05×2.05m
	General weight(approx.)	6/7t
Machining accuracy	Hole Dia. accuracy	IT7-IT11
	roughness	Ra0.4-3.2µm
	Deflexion of hole center line	Workpiece is stationary:≤1mm/1000mm(ratio of length and Dia.≤100:1);workpiece is 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, headstock, hydraulic steady rest, high precision chuck 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.