High-Speed Small Vertical Machining Center & CNC Drilling Tapping Center
Engineered with HT300 rigid box column structure, 24,000 RPM spindle, and 21-tool umbrella ATC for precision B2B manufacturing.
💡 Our CNC drilling and tapping machines support custom non-standard designs, machine color customization, and OEM branding. Start now to purchase and customize your own equipment, please contact us.
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Features
Triangular Box Column Rigidity: Heavy-duty cast iron box column structure provides maximum cutting rigidity and vibration dampening.
High-Torque BT40/BT50 Spindle: High-power direct/belt drive spindle delivers strong milling, drilling, and tapping torque.
High-Speed Umbrella/Arm ATC: 16–24 tool magazine completes tool changes in under 2 seconds to optimize multi-process jobs.
Pre-Tensioned C3 Ball Screws: High-grade ball screws on all axes ensure long-term thermal stability and ±0.02mm accuracy.
In-Depth Engineering Description & Technical Overview
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Executive Summary: High-Speed Precision CNC Machining
The DUOMI DNC-T6 is a premium Small Vertical Machining Center and high-speed CNC Drilling and Tapping Center designed for medical, automotive, aerospace, and high-precision electronics manufacturing. Built on a heavy-duty HT300 high-tensile cast iron foundation, this machine delivers high-rigidity performance with a 24,000 RPM spindle, rapid traverse speeds up to 48 m/min, and positioning accuracy within ±0.02mm per 300 mm.
Equipped with a 21-tool umbrella ATC (Automatic Tool Changer) and high-efficiency rear chip disposal, the DNC-T6 optimizes cycle times and operational productivity for both high-volume component production and intricate mold making.
Core Engineering & Structural Highlights
1. Premium HT300 Cast Iron Box Column Design
- Material Hardness: Treated to ≥ HB250 with high-temperature annealing and natural stress-relief aging for lifetime dimensional stability.
- Vibration Suppression: Features a 3-layer base rib layout and 2-layer cross-ribbed column architecture to eliminate resonance micro-vibrations during heavy cuts.
- 1:1:1 Golden Ratio Head Interface: Symmetrical spindle-to-column contact geometry maximizes cutting rigidity and ensures uniform thermal expansion.
2. High-Speed Motion & Hybrid Guideway System
- Linear & Box Guideways: Heavy-duty linear roller guides on X/Y axes (30mm size) for rapid 48 m/min positioning, combined with a heavy-duty hard box column guideway on the Z-axis for maximum damping capacity during heavy roughing.
- Precision Ball Screws: Premium 2816 (X/Y) and 3216 (Z) pre-tensioned ball screws deliver backlash-free accuracy.
- High-Efficiency Chip Disposal: Rear chip disposal architecture enables rapid chip evacuation, protecting workpiece finish and tool longevity.
3. Rapid Automatic Tool Changer (Umbrella ATC)
- Capacity: 21-tool umbrella magazine for BT30-φ100 spindle tooling.
- Spindle Power: 5.5 kW main motor generating up to 24,000 RPM for ultra-fast drilling, tapping, and micro-milling.
6-Stage Casting Process for Structural Stability
- Lost Foam Mold Milling: High-precision CNC milling of foam patterns guarantees complex internal 3-layer base and 2-layer column rib geometries.
- Vanishing Line Molding: Automated molding line ensures uniform sand density to prevent casting porosity.
- Resin Sand Reinforcement: High-strength resin sand structures withstand molten iron pressure for accurate wall thickness.
- Electric Induction Furnace Melting: Precise alloy composition controls carbon-silicon ratios to maintain ≥ HB250 hardness.
- Monolithic Casting: Continuous pour vaporizes foam instantly to create a seamless single-piece machine bed.
- Thermal Annealing & Aging: Complete stress relief prevents deformation across decades of continuous shop-floor operation.
Applications & Target Industries
- Automotive Components: Valve bodies, pump housings, brackets, aluminum engine accessories.
- 3C & Electronics: Smartphone frames, tablet chassis, heat sinks, connector blocks.
- Medical Equipment: Precision surgical instruments, titanium implants, device housings.
- Precision Molds: Small injection mold inserts, die casting cores, stamping dies.
Learn more about our full lineup including the DUOMI VMC T600 Machining Center for expanded workspace needs.
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-T6 |
| X-axis Travel | 600 mm |
| Y-axis Travel | 400 mm |
| Z-axis Travel | 350 mm |
| Table Size | 420 * 700 mm |
| Max. Table Load Capacity | 400 Kg |
| T-Slots (No. – Width × Spacing) | 3-14*120 mm |
| Spindle Speed | 24000 Rpm |
| Spindle Taper | BT30-φ100 |
| Main Motor Power | 5.5 Kw |
| Axis Servo Motor Power (X/Y/Z) | 1.5/1.5/3 Kw |
| Rapid Traverse Speed (X/Y/Z Axis) | 48/48/48 m/Min |
| Ball Screw (X/Y/Z Axis) | 2816/2816/3216 |
| Linear Guideway Size (X/Y/Z Axis) | 30/30/30 |
| Positioning Accuracy | ±0.02mm/300 mm |
| Repeatability | ±0.02mm/300 mm |
| Tool Magazine | 21 Tools |
| Machine Weight | 3500 Kg |
| Overall Dimensions (L × W × H) | 2500*2300*1900 mm |
| CNC Controller | Mitsubishi System (High-Speed & Precision) |
| Structure Material | Premium HT300 High-Tensile Cast Iron |
| Surface Hardness | HB250 (Annealed & Aged) |
| Structural Features | 3-Layer Base / 2-Layer Column Ribs |
| Application Target | High-Precision Molds & Heavy Parts Processing |
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 positioning and repeatability tolerances does the DNC-T6 CNC drilling and tapping center achieve?
What materials can be processed on this small vertical machining center?
How does the HT300 box column design improve cutting stability?
What spindle speed and rapid traverse rates are provided?
What tool capacity and change system does the DNC-T6 offer?
What CNC control system powers the machine?
Can DUOMI CNC supply custom colors, OEM branding, or non-standard machine modifications?
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