4-Axis High-Precision CNC Drilling Machine for Round Tubes

Overview & High-Precision Machining Capabilities

The DNC-2003D(R1) CNC Precision Drilling Machine for Round Tubes by DUOMI CNC is an advanced 4-axis industrial solution designed for high-accuracy hole pattern drilling, tapping, and chamfering on cylindrical and profile stock. Built with a heavy-duty stress-relieved frame and high-rigidity HIWIN linear guides, this multi-angle automatic rotating CNC round pipe drilling machine achieves superior structural stability under continuous mass production conditions.

Every machine undergoes rigorous full-stroke accuracy verification using an API Laser Interferometer (USA) prior to shipment, ensuring machine accuracy within 0.02 mm and repeatable positioning precision of ±0.02mm.

Key Engineering Features & Key Benefits

Precision Single Servo-Driven Spindle

• Speed Range: 1,500 – 24,000 RPM (selectable based on material and tool specifications)
• Spindle Power: 0.55 kW to 3.0 kW with ER20 collet interface
• Powered by a high-performance servo motor delivering constant torque, fast dynamic response, and low-vibration performance essential for micro-hole drilling and precision metal processing.

Advanced 4-Axis CNC Control System

• Supports CAD file import, computer-based CAM programming, and manual G-code input.
• Memory capacity for up to 10,000 system programs with external signal integration capability for automated loading systems.
• User-friendly interface accommodates operators across all technical skill levels.

Heavy-Duty Stress-Relieved Machine Structure

• Rigid, stress-relieved steel base absorbs cutting vibrations, preventing thermal deformation and guaranteeing long-term dimensional repeatability.
• Machine gross weight of approximately 1,500 kg provides unmatched stability during high-speed motion.

Premium HIWIN Linear Motion Components

• Equipped with premium HIWIN (Taiwan) linear guideways and ball screws across X, Y, and Z axes.
• Rapid feed rates up to 60 m/min (X-axis) and 25 m/min (Y/Z-axes) for reduced cycle times and elevated throughput.

High-Precision 360° Rotary Axis Indexing

• High-precision rotary shaft paired with a harmonic reducer allows smooth 360° continuous rotation and precise radial indexing at any angular increment.
• Handles tube clamping diameters from 10 mm to 200 mm.

Absolute Servo Motor Drive System

• Closed-loop absolute servo encoders on all transmission axes maintain position memory even after power cycles, eliminating home-homing routines and boosting operational safety.

Automatic Oil Cooling & Centralized Lubrication

• Integrated automatic lubrication delivers consistent oil metering to linear motion guides and spindle components, extending operational tool life and reducing routine maintenance.

Target Materials & Industrial Applications

This multi-axis precision round tube drilling and milling machine is engineered for versatile metal processing across diverse manufacturing sectors:

• Compatible Materials: Aluminum alloys, copper, brass, carbon steel, stainless steel, iron, zinc, titanium, and platinum.
• Workpiece Geometry: Round tubes, square tubing, oval pipes, and custom extruded profile stock (swapped quickly via modular pneumatic clamping fixtures).
• Primary Industries: Automotive exhaust/chassis components, aerospace tubing, architectural handrails, heat exchangers, fluid piping, medical equipment frames, and general industrial hardware.