Deep Hole Gun Drilling Machine
CNC deep hole drilling machine is a special-purpose deep hole drilling machine with properties of high efficiency, high accuracy and high automation.
It adopts gun drill method and inner-chip removing method (BTA),through one continues drilling.
It can realize the machining accuracy and surface roughness usually by the progress of drilling, expanding and reaming.
The machine is controlled by CNC system with function of both single action and automatic recycling so that it can meets the requirements of small batch and large batch machining.
The machine can drill through-hole, blind hole and step hole.
The machine can be widely used in the line of automobile and motorcycle, mould, military and aeronautics.

1 | Drill diameter | Customized |
2 | Max.drilling depth | Customized |
3 | Max.workpiece length | Customized |
4 | Max.workpiece diameter | Customized |
5 | Spindle speed | 50-1500r/min(stepless) |
6 | Tool feeding speed | 10-500mm/min |
7 | Max.workpiece clamp diameter | 100m |
8 | Fast feeding speed | 2000mm/min |
9 | Feed motor torque | 18Nm |
10 | Drill bar box motor power | 11KW*2 frequency-variable |
11 | Nominal pressure of cooling | 2.5Mpa |
12 | Machine total power | 45KW |
13 | Cooling liquid filtration precision | 20μm |


1 | CNC system | SIEMENS/FANUC |
2 | Servo feeding motor(Z axis) | Taiwan Zhongda |
3 | Drill bar spindle servo motor | Shanghai Meishike |
4 | Feed ball screw | Taiwan HIWIN |
5 | Bearings | Harbin,Wafangdian,Luoyang Bearing Co.Ltd |
6 | Hydraulic components | Jiangsu Haimen |
7 | Hydraulic pump | Cangzhou Dayu |
8 | Automatic lubrication | China famous brand |
9 | Belts,wheels | China famous brands |
10 | Frequency converter | Taiwan Zhongda |
11 | Chain | Langfang |
12 | Low voltage electrical components | SCHNEIDER |
Accuracy and Surface Roughness |
1.After drilling,hole accuracy:IT10-11.Surface roughness Ra≤12.5 2.After rough boring,hole accuracy IT9-10.Surface roughness Ra≤6.3 3.After fine boring,hole accuracy IT7-8.Surface roughness Ra≤3.2 4.After rolling,hole accuracy IT7-8.Surface roughness Ra≤0.4 5.Hole linearity:≤0.15/1000mm |
2.After rough boring,hole accuracy IT9-10.Surface roughness Ra≤6.3 |
3.After fine boring,hole accuracy IT7-8.Surface roughness Ra≤3.2 |
4.After rolling,hole accuracy IT7-8.Surface roughness Ra≤0.4 |
5.Hole linearity:≤0.15/1000mm |

Service
1.OEM Manufacturing welcome: Product, Package…
2. Sample order
3. We will reply you for your inquiry in 24 hours.
4. After shipment, we will track the products for you once every two days,until you get the products.When you get the goods, test them, and give me a feedback.If you have any questions about the problem,contact with us,we will offer solution within 24 hours.
Q1. What is your terms of packing?
A: Generally, we pack our goods in export stander plywood case packing.If you have a special request,we can do it according to your requirements,we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T,irrevocable L/C at sight.
Q3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.
Q4. How about your delivery time?
A: Generally, the machine tools it will take 7-10 days and the CNC gun drill machine need 90 days after receiving receiving advanced payment.The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings.We can build the molds and fixtures.
Q6. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q7: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit;
2. We respect every customer as our friend and we sincerely do business and make friends with them.
