Double Spindle Gantry-Type CNC Drilling and Tapping Machine (DNC-1226N20)
High-Efficiency Dual Spindle Automated Drilling, Tapping & Milling with 20-Tool Automatic Tool Changer
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Features
Heavy-Duty Dual-Drive Gantry: High-rigidity bridge frame spanning large working envelopes without deflection.
Dual-Spindle Synchronous Machining: Twin spindles double drilling and tapping productivity per setup.
High-Thrust Drilling Power: Powerful spindle motor easily drives large-diameter drills and taps up to M24/M30 in steel.
Precision Rack & Pinion / Ball Screw Drives: Heavy-duty linear guideways ensure ultra-smooth motion and ±0.02mm repeatability.
In-Depth Engineering Description & Technical Overview
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High-Efficiency Dual Spindle CNC Machining
The DUOMI DNC-1226N20 Double Spindle Gantry-Type CNC Drilling and Tapping Machine delivers automated, high-precision machining for large-scale and complex metal fabrication. Featuring dual high-speed BT30 spindles (5.5kW power, 500–6000 RPM) and a robust gantry structure, this machine integrates drilling, tapping, chamfering, and light milling into a single setup—slashing cycle times by up to 50% compared to traditional single-spindle operations.
Key Performance Advantages
- Dual-Spindle Efficiency: Simultaneous twin-spindle operation drastically boosts throughput for multi-hole array components and high-volume structural production.
- 20-Tool Linear ATC System: Integrated automatic tool magazine enables uninterrupted multi-process workflows without manual intervention.
- High-Speed Axis Dynamics: Rapid movement rates up to 60 m/min on X/Y axes and 30 m/min on Z axis minimize non-cutting idle time.
- Ultra-Precise Tolerances: Dual-drive X/Y axis servo systems achieve ±0.02mm repeat positioning accuracy, maintaining defect rates as low as 0.2%.
- Flexible Machining Envelope: Generous working stroke of X1600mm x Y2600mm x Z200mm handles oversized plate, structural steel, and irregular components.
Solved Industry Pain Points
| Production Challenge | Traditional Equipment | DUOMI DNC-1226N20 Solution | Impact & ROI |
|---|---|---|---|
| Multi-Process Bottlenecks | Frequent machine swapping between drilling, tapping & milling | Multi-process integration with 20-tool ATC in one setup | 40%+ reduction in total processing cycle time |
| High Scrap Rates | Manual hole layout causing high operator variance (approx. 5–8% scrap) | Automated CAD/CAM import with ±0.02mm repeat accuracy | Defect rate dropped to 0.2%, saving up to $500K annually |
| Skilled Labor Shortages | Requires multiple dedicated machinists per shift | Single operator controls multiple CNC machines; automated loading support | Up to 60% savings in direct labor expenditure |
Advanced Technical Features & Automation
- Rigid Gantry Architecture: Heavy-duty cast frame weighing approximately 3600kg dampens machining vibrations, extending tool life and preserving tight geometric tolerances under heavy loads.
- Seamless CAD/CAM Integration: Supports direct CAD file import, computer program transfer, and manual program entry with storage for up to 10,000 programs.
- Industrial Compliance & Safety: Manufactured in accordance with ISO 9001 quality standards and CE machinery safety directives.
- Automation Ready: Supports external signal control interfaces for integration with robotic loading/unloading arms, enabling 24/7 unmanned production lines.
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-1226N20 |
| XYZ three-axis machining stroke | X1600mm, Y2600mm, Z200mm |
| Spindle speed | 500~6000rpm (Can be selected according to demand) |
| Spindle taper hole | BT30 |
| Spindle power | 5.5KW |
| X axis moving speed | 30m/min~60m/min |
| Y axis moving speed | 30m/min~60m/min |
| Z axis moving speed | 15m/min~30m/min |
| Drilling diameter range | 1~16mm |
| Tapping diameter range | M3~M16 |
| Chamfer diameter range | 1~20mm |
| Tool magazine | Automatic tool change for row of knives (20 knives) |
| Repeated positioning accuracy | ±0.02mm |
| Transmission servo motor power | X-axis dual drive 1.5(kw)*2 sets, Y-axis 1.5(kw)*2 sets, Z-axis 1.2(kw) with brake*2 sets |
| 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. 3600KG |
| Floor space | 2000mm x 3800mm x 2800mm |
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 precision can the DUOMI DNC-1226N20 double spindle gantry machine achieve?
What size holes can be drilled and tapped on this CNC machine?
How does the double spindle configuration improve efficiency?
What tool capacity and tool change mechanism does this machine utilize?
Which engineering materials are compatible with the DNC-1226N20?
Does DUOMI offer OEM branding or custom machine configurations?
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