Horizontal Metal CNC Drilling, Tapping & Milling Compound Machine DNC-2020N4
High-Precision 3-Axis Multi-Functional Horizontal CNC Machine with Automatic Tool Changer for Industrial Metal Fabrication
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Features
Horizontal End-Face & Side Machining: Horizontal spindle layout eliminates awkward vertical fixturing for long shafts and bars.
Natural Gravity Chip Evacuation: Metal swarf and coolant drop freely away from the hole, preventing tool recutting and tap breakage.
End-Face Compound Drilling & Milling: Single clamping completes end-face centering, deep-hole drilling, and precision tapping.
Ultra-Rigid Low Center of Gravity: Robust horizontal casting bed resists axial drilling thrust and maintains long-term alignment.
High-Efficiency Automatic Clamping: Hydraulic/pneumatic self-centering vices speed up repetitive parts changeover.
In-Depth Engineering Description & Technical Overview
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Executive Overview
The DUOMI DNC-2020N4 Horizontal Metal CNC Drilling, Tapping & Milling Compound Machine is a heavy-duty, high-efficiency 3-axis automated machining solution designed for multi-process metal processing. Built to integrate side-face drilling, rigid tapping, milling, and chamfering in a single setup, the DNC-2020N4 eliminates manual repositioning errors and drastically reduces cycle times across medium-to-large structural components, extrusions, and castings.
Featuring an expansive 2000 mm × 200 mm × 200 mm (X/Y/Z) working envelope, a high-rigidity BT30 spindle operating up to 6,000 RPM, and a 4-position row-type automatic tool changer (ATC), this compound machine delivers industrial-grade throughput for non-ferrous and ferrous metals including aluminum, copper, steel, and alloy castings.
Key Technical Advantages & Engineering Features
1. High-Speed BT30 Spindle & Dynamic Drive System
- Spindle Power & Torque: Equipped with a 5.5 kW servo spindle drive delivering reliable torque across 1,000 to 6,000 RPM, optimized for high-speed drilling (dia. 1–20 mm) and tapping (M2–M16).
- Rapid Axis Dynamics: Absolute servo motors mated to precision HIWIN ball screws and linear guideways enable rapid feed rates up to 60 m/min along the X-axis and 25 m/min along Y/Z axes.
2. High-Precision Verification & Rigidity
- API Laser Calibration: Every unit undergoes strict laser interferometer verification using US-imported API laser calibration systems, ensuring machine positional accuracy controlled within 0.02 mm and repeatable positioning precision of ±0.02mm.
- Heavy-Duty Cast Iron Frame: Heavy structural damping mitigates chatter during deep hole drilling and heavy side milling, maintaining surface finishes and extended cutter life.
3. Integrated Clamping & Automatic Tool Magazine
- Guideway Sliding Double-Output Workholder: Features specialized hydraulic/pneumatic downward pressure clamps to prevent workpiece vibration during high-speed operations. Adjustable clamping distances accommodate long profile processing with high flexibility.
- 4-Station Row Automatic Tool Changer: Integrated linear tool rack speeds up tool changes for multi-diameter drilling, chamfering, and thread tapping without operator intervention.
4. CAD/CAM Automated Control System & Intuitive Interface
- Direct CAD File Import: The intuitive dual-language (English/Chinese) color LCD control panel enables direct DXF/CAD vector import with automatic G-code generation, removing the bottleneck of specialized manual programming.
- Massive Storage: Internal memory stores up to 10,000 individual processing programs, with external I/O integration for automated loading cells or robotic arm integration.
5. Automated Maintenance & Chip Management
- Metered Automatic Lubrication: Timed, metered lubrication automatically supplies oil to linear motion guides and ball screws on all axes, extending mechanical lifespan and lowering preventive maintenance overhead.
- Advanced Filtration System: High-volume coolant pump with chip recovery filtration ensures continuous chip evacuation, maintaining workpiece cooling and dynamic thermal stability during continuous 24/7 operation.
Targeted Industrial Applications
- Aluminum Extrusions & Structural Frameworks: Automated side hole drilling, counterboring, and tapping on architectural and structural profiles.
- Automotive & Transportation Components: Machining battery trays, chassis crossmembers, bumper beams, and engine side covers.
- Industrial Automation & Valve Bodies: Precision multi-hole drilling and thread tapping on fluid manifolds, pump housings, and linear actuator bases.
- Custom Hardware & Heat Sinks: Rapid multi-specification hole processing on brass, copper, zinc, and alloy heatsink assemblies.
Performance Specifications Summary
| Feature Parameter | Technical Specification |
|---|---|
| Worktable Travel (X / Y / Z) | 2000 mm × 200 mm × 200 mm |
| Positioning Repeatability | ±0.02mm |
| Overall Precision Standard | ≤ 0.02 mm (API Laser Verified) |
| Spindle Interface / Speed | BT30 / 1,000–6,000 RPM (5.5 kW) |
| Drilling / Tapping Capacity | Ø1–20 mm / M2–M16 |
| Rapid Traverse (X / Y / Z) | 30–60 m/min (X) / 25 m/min (Y/Z) |
| Control System Capability | CAD Direct Import, 10,000 Program Memory |
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-2020N4 Horizontal Metal cnc drilling machine |
| XYZ three-axis travel | X2000mm, Y200mm, Z200mm |
| Spindle speed | 1000~6000rpm (Can be selected according to demand) |
| Spindle taper hole | BT30 |
| Spindle power | 5.5 KW |
| X axis moving speed | 30m/min~60m/min |
| Y axis moving speed | 25m/min |
| Z axis moving speed | 25m/min |
| Borehole diameter range | 1~20mm |
| Tapping diameter range | M2~M16 |
| Chamfer | 1~20mm |
| Tool magazine | Automatic tool change (4 knives) |
| Repeated positioning accuracy | ±0.02mm |
| Table size | 2000 x 500mm |
| Programming mode | CAD file import / computer programming / manual programming |
| System program storage capacity | About 10,000 |
| System external signal control | Support |
| Operating voltage | AC 380V/50HZ |
| Machine weight | Approx. 2000KG |
| Floor space | 3800mm x 1700mm x 1500mm |
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 core machining functions does the DNC-2020N4 handle in a single setup?
What accuracy and tolerance standards does this horizontal CNC machine achieve?
Do I need G-code programming skills to operate the DUOMI CNC control system?
What workpiece materials can be processed on the DNC-2020N4?
How does the specialized fixture prevent workpiece vibration during drilling and tapping?
Can DUOMI provide custom axis lengths, colors, or OEM machine configurations?
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