This type of CNC gun drilling machine is mainly used for drilling small deep holes and precision shallow holes of the same axis of large quantities of orthopedic implant medical supplies and surgical instruments and other rotary shaft parts. It can process both blind holes and through holes. The processing aperture range is φ1 ~ 6mm, with double spindle and double station design, and the maximum drilling depth is 500mm.It can process 2 pieces of the same specification at the same time. The machine adopts high speed precision mechanical spindle, the highest speed 13000R /min, belongs to high speed cutting machine. This machine tool is manually loading and unloading, automatic  or manual clamping, automatic processing, loading and unloading position and processing position is the same. Its production and safety standards are in accordance with technical agreements and national and related industry standards, tooling, cutters and auxiliary tools for workpiece specifications agreed in the technical agreement are also included.

Machine tool layout: The machine tool is designed for horizontal layout. Machine tool main body, spindle, supporting plate and each box are made of high quality HT300 integral casting, and artificial aging, with strong rigidity and shock resistance. The cooling filtration system is placed in parallel with the machine tool main machine.

Machine tool host: Machine tool host is divided into two station workpiece clamping system and double spindle cutter feeding and drilling system. The machine tool adopts a fully enclosed protection design of the main machine, and the CNC operation box adopts suspension type.

**1. Processing Capacity**

- Number of spindles: 2

- Drilling diameter: φ1–φ6 mm

- Drilling depth: ≤500 mm

- Workpiece outer diameter range: ≤φ30 mm

- Workpiece length range: ≤500 mm

**2. Processing Speed**

- Maximum spindle speed (drill rod box): 13000 r/min (motorized spindle, stepless speed regulation)

- Workpiece rotation speed: 0 or 145 r/min (fixed or constant speed)

- Feed speed range: 0–500 mm/min

- Rapid traverse speed: ≤2000 mm/min

**3. Machining Accuracy**

- Hole deflection:

  - Aperture < φ3: 1/1000 × drilling depth (within 75:1 length-diameter ratio)

  - Aperture ≥ φ3: 0.5/1000 × drilling depth (within 100:1 length-diameter ratio)

  - If drilling depth < 100 mm, deflection standard is 0.05 mm

- Dimensional accuracy: IT7–IT11

- Surface roughness: Ra0.4–Ra6.3