High-Precision Micro & Small Hole CNC Drilling Machine DNC-430D
Ultra-precise 0.05mm micro-drilling capability with ±0.02mm repeatability for high-throughput component manufacturing.
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Features
Ultra-High-Speed Micro Spindle: 24,000–60,000 RPM spindle provides optimal cutting velocity for micro drill bits down to Ø0.15mm.
Burr-Free Micro Hole Finish: Controlled micro-feed system prevents drill deflection, bit breakage, and hole entrance burrs.
High-Density Hole Array Processing: Rapid positioning and micro-peck cycles optimize thousands of holes per shift.
High-Precision Positioning Accuracy: High-resolution servo drives deliver ±0.02mm repeatable accuracy for delicate components.
In-Depth Engineering Description & Technical Overview
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Overview of DNC-430D Micro-Hole CNC Drilling Machine
The DUOMI DNC-430D CNC Drilling Machine is engineered for high-speed, high-precision machining of micro and small holes ranging from 0.05mm to 14mm. Designed to bridge the gap between traditional manual drilling operations and expensive large-scale machining centers, the DNC-430D delivers multi-process integration including drilling, tapping, chamfering, and light milling in a compact footprint (850mm x 900mm x 1700mm).
Built with full servo motor transmission control and high-speed spindles reaching up to 24,000 RPM, this compact CNC platform drastically cuts cycle times and labor overhead while guaranteeing consistent accuracy for demanding industrial applications.
Key Industrial Benefits
1. Multi-Process Efficiency & Cycle Time Reduction
- Integrated Machining: Perform drilling, tapping, chamfering, and milling in a single setup, eliminating time-consuming workpiece transfers and re-fixturing.
- Rapid Axis Speeds: Rapid traverse rates of 30–60 m/min (X-axis) and 25 m/min (Y/Z-axes) reduce non-cutting idle time by up to 40%.
- High Spindle Speeds: Variable high-speed spindle options (1,500 to 24,000 RPM) optimize surface speed for micro-tooling longevity.
2. Defect Rate Reduction down to 0.2%
- Precision Stability: Full servo closed-loop control guarantees ±0.02mm repeated positioning accuracy, reducing quality drift.
- Proven ROI: A major automotive component manufacturer cut defect rates on engine oil passage holes from 8% down to 0.2%, yielding annual material cost savings exceeding $500,000.
3. Flexible Multi-Axis Linkage & Complex Geometry
- Surface & Angled Drilling: Compatible with 3-axis, 4-axis, or 5-axis rotary indexers for multi-angle hole pattern execution on irregular workpieces.
- Programming-Free CNC Control: Native CAD/CAM file import allows fast setup for small-batch or high-mix production runs without lengthy manual coding.
4. Reduced Labor Costs & Automated Unmanned Production
- One-to-Many Operation: Simple graphical interfaces enable a single technician to oversee 3 to 5 operating units simultaneously.
- Automation Ready: Reserved external I/O signal ports support seamless integration with robotic loading systems, assembly lines, and automatic tool alarm sensors.
Machining Applications & Materials
The DNC-430D is extensively deployed in aerospace, automotive, medical device, electronics, and precision hardware sectors.
- Target Components: Spray nozzles, fuel injectors, metal mesh filters, dental tools, cooling manifolds, coolant-fed drill bodies, ceramic vacuum chucks, and micro-copper plates.
- Compatible Materials: Tool Steel, Inconel, Hastelloy, Stainless Steel, Titanium, Tungsten, Tantalum, Carbide, Copper, Brass, Bronze, Aluminum, Zinc, Iron, Platinum, and Graphene plates.
Compliance & Quality Assurance
All DUOMI CNC drilling machinery strictly adheres to ISO9001 manufacturing quality frameworks and holds CE marking certification for European and global compliance. Built with robust castings and premium guide rails, the system ensures long-term operational stability under continuous industrial usage.
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-430D CNC Drilling Machine |
| XYZ three-axis machining stroke | X400mm, Y300mm, Z120mm |
| 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~60m/min |
| Y axis moving speed | 25m/min |
| Z axis moving speed | 25m/min |
| Borehole diameter range | 1~14mm |
| Chamfer diameter range | 1~14mm |
| Tool magazine | Manual tool change |
| Repeated positioning accuracy | ±0.02mm |
| Table size | 400mm x 280mm |
| 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. 500KG |
| Minimum drilling diameter | 0.05mm |
| Common Applications | Spray Nozzles, Metal Filters, Fuel Injectors, Metal filters, Dental Tools, Coolant Fed Drills, Cooling Manifolds |
| Floor space | 850mm x 900mm 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 is the minimum hole diameter capability on the DNC-430D CNC drilling machine?
What difficult-to-machine alloys can this small CNC drilling machine process?
How does the DNC-430D integrate into automated production lines?
What programming modes are supported by the control system?
What is the standard lead time and OEM customization option for DUOMI machines?
What spindle configurations are available for the DNC-430D?
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