4-Axis High-Speed CNC Drilling Machine for Round Steel Tubes
Precision 360° Rotary CNC Tube Drilling & Tapping Solution with ±0.02mm Repeatability
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Features
4th-Axis Rotary Indexing: 360° continuous rotary axis allows multi-face drilling in a single setup without reclamping.
Pneumatic Tube Clamping: Self-centering chucks and steady rests secure round and square pipes vibration-free.
High-Speed Synchronized Motion: Fast rapid-traverse rates significantly reduce non-cutting transit times.
Rigid Repeatable Positioning: Precision ball screws and servo drives achieve ±0.02mm positioning repeatability.
In-Depth Engineering Description & Technical Overview
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Overview: High-Efficiency 4-Axis CNC Drilling for Steel & Alloy Tubes
The DUOMI DNC-1003D(R1) 4-Axis CNC Drilling Machine is an industrial-grade, high-speed automated machining center engineered specifically for precision drilling, tapping, and hole processing on round steel tubes, square pipes, and special-shaped metal extrusions. Featuring a 360-degree servo-driven rotary axis (A-axis) with harmonic reducer technology, this machine enables complex multi-angle hole patterns in a single setup.
Built for demanding 24/7 industrial production environment across automotive, HVAC, structural steel construction, aerospace, and general metal fabrication, the machine delivers exceptional operational stability, fast cycle times, and sub-hundredth millimeter accuracy.
Core Engineering & Performance Features
1. High-Precision Single Servo-Driven Spindle (up to 24,000 RPM)
- Powered by a heavy-duty servo motor delivering high torque output across all speed ranges (1,500 to 24,000 RPM).
- ER20 spindle taper supporting drilling diameters from 1mm to 20mm and tapping sizes from M2 to M14.
- Engineered to eliminate chatter and thermal distortion during continuous drilling on tough materials such as carbon steel, stainless steel, and structural aluminum.
2. Advanced 4-Axis CNC Motion Control System
- Flexible multi-mode programming: Direct CAD file import (DXF/IGES), computer G-code programming, or intuitive manual interface.
- Stores up to 10,000 program files with external I/O integration for automated loading systems and robotic cells.
- Drives X, Z, and A rotary axes synchronously for precise radial and axial hole pattern distribution.
3. Stress-Relieved Heavy-Duty Frame & HIWIN Linear Motion
- Cast machine bed undergo thermal stress-relief annealing to eliminate internal stresses and prevent long-term frame deformation.
- Fitted with premium HIWIN (Taiwan) precision linear guide rails and ground ball screws to sustain rapid traverse speeds up to 60 m/min on the X-axis and 25 m/min on Y/Z axes.
4. 360° Rotary Axis with High-Precision Harmonic Reducer
- Continuous 360° A-axis indexing driven by absolute servo motor and backlash-free harmonic reducer.
- Clamping tube diameter capacity ranging from 10mm to 200mm for versatile tube processing.
- Optional guide-rail pneumatic fixtures ensure quick-change clamping and maximum production throughput.
5. API Laser Interferometer Precision Calibration
- Every DUOMI 4-axis CNC drilling machine undergoes 100% full inspection and laser calibration using an API Laser Interferometer (USA) prior to shipment.
- Guarantees true positioning accuracy within ≤ 0.02 mm and repeatability within ±0.02mm, compliant with international ISO standards.
6. Automated Lubrication & Oil-Cooling System
- Integrated automatic forced-oil cooling unit protects the high-speed spindle motor.
- Centralized automatic lubrication unit continuously cleans and oils guideways and ball screws to maximize machine lifespan and lower maintenance downtime.
Industrial Applications & Processable Materials
Processable Materials
- Steel & Alloys: Carbon Steel, Alloy Steel, Stainless Steel, Galvanized Pipe, Cast Iron
- Non-Ferrous Metals: Aluminum Extrusions, Copper, Brass, Zinc, Titanium, Platinum
Industry Applications
- Automotive & Transportation: Exhaust pipes, chassis tube frames, roll cages, driveshaft components.
- Construction & Structural: Scaffolding components, handrails, truss structures, curtain wall frames.
- Industrial Machinery: Fluid manifolds, hydraulic cylinder tubes, heat exchanger tubing.
- Furniture & Hardware: Metal display racks, office furniture frames, fitness equipment tubing.
Quality Standards & B2B Customization Options
DUOMI CNC machines are built in ISO 9001 certified manufacturing facilities and hold full CE compliance for international markets.
- Custom Engineering: Dual rotary spindle configurations, customized clamping jigs, and extended bed lengths available upon request.
- OEM & Color Customization: Tailored machine enclosure design, custom paint finishes, and OEM branding options.
- Global Service: Full technical support, technical documentation, spare parts supply, and remote engineering setup assistance.
Purchase & Delivery Guarantees
Direct Factory Assurance — Built, Tested, and Supported from Dongguan to Your Shop Floor
Runs on Your System
Standard GSK control (100% Fanuc G-code compatible) or optional Mitsubishi/Siemens. Direct CAD file import for code-free toolpath generation.
Factory Video FAT
Live drilling/tapping tests on your actual workpiece recorded before dispatch. Final 50% balance payment is paid only after your video approval.
40-Day Build & Rugged Crate
Guaranteed maximum 40-day manufacturing cycle. Sealed in anti-rust vacuum aluminum foil and bolted in fumigation-free timber crates (EXW/FOB/CIF).
Direct Engineer Care
Direct 1-on-1 WhatsApp group with your machine's build engineers, 12-month full warranty, and critical replacement parts dispatched via DHL within 24–48h.
Every DUOMI machine is built under a transparent 13-step factory production & responsibility chain.
Parameters
Download Technical Brochure| Model | DNC-1003D(R1) 4-Axis CNC Drilling Machine |
| XYZ three-axis machining stroke | X 1000mm, Z 200mm, A 360° |
| Spindle speed | 1500~24000rpm (Can be selected according to demand) |
| Spindle taper hole | ER20 |
| Spindle power | 0.55~3.0KW |
| X axis moving speed | 30m/min~60m/min |
| Y axis moving speed | 25m/min |
| Z axis moving speed | 25m/min |
| Drilling diameter range | 1~20mm |
| Tapping diameter range | M2~M14 |
| Clamping diameter of rotating shaft | 10~200mm（Selection on demand） |
| Tool magazine | Manual tool change |
| Repeated positioning accuracy | ±0.02mm |
| Programming mode | CAD file import /computer programming / manual programming |
| System program storage capacity | About 10,000 |
| System external signal control | Support |
| Operating voltage | AC 220V/50HZ |
| Machine weight | Approx. 1000KG |
| Equipment footprint | 2200 x 1500mm x 1700mm |
Machining Samples
Real parts processed by our machines
Frequently Asked Questions
We “only” do drilling & tapping. Why do customers still choose Duomi over general-purpose CNC machines?
What does “Your part defines the solution” mean in practice?
What pipe diameters and wall thicknesses can the 4-axis CNC tube drilling machine process?
What is the positioning and repeated accuracy of this machine?
Does this machine support both drilling and tapping operations?
How does the 360° rotary axis improve tube processing efficiency?
What programming formats does the CNC control system accept?
Can the machine be customized for non-standard production requirements?
What is the lead time and delivery schedule for international B2B orders?
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