Multi-Spindle Oil Stator Tubes CNC Drilling Machine
Heavy-duty 4-axis fully automatic CNC pipe drilling and tapping machine with 360° multi-angle rotary capability and dual-spindle efficiency.
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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.
Multi-Spindle Synchronous Action: Dual or multi-spindle array multiplies hole production output per cycle.
Rigid Repeatable Positioning: Precision ball screws and servo drives achieve ±0.02mm positioning repeatability.
In-Depth Engineering Description & Technical Overview
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Executive Summary & Industrial Overview
The DUOMI DNC-7003DT(R1) Multi Spindle Oil Stator Tubes CNC Drilling Machine is engineered for high-throughput, precision machining of long oil stator tubes, structural pipes, and complex cylindrical profiles. Built on a stress-relieved heavy-duty machine frame with an extended 6800 mm X-axis stroke, this 4-axis CNC drilling machine combines dual independent servo-driven spindles with a high-precision 360° rotary A-axis. Designed for continuous industrial operations, it delivers repeatable positioning accuracy within ±0.02 mm verified by USA API laser interferometer calibration.
Key Features & Technological Advantages
Dual Servo-Driven Spindle System
- Independent or Simultaneous Operation: Dual high-speed spindles (1500–24,000 RPM) allow simultaneous dual-hole processing or independent operation, effectively doubling production output.
- Adjustable Spindle Distance: Easily adjust center-to-center spindle spacing to accommodate varying hole pitch requirements across different tube specifications.
360° Precision Rotary Axis (A-Axis)
- Multi-Angle Machining: Driven by an absolute servo motor coupled with a high-precision harmonic reducer, enabling accurate angular indexing at any position around 360 degrees.
- Flexible Clamping: Accommodates tube diameters from 10 mm to 200 mm with optional guide rail pneumatic clamping for rapid part changeover.
Industrial Heavy-Duty Structure & Guidance
- Vibration-Damped Bed Frame: Stress-relieved heavy-duty structure ensures structural rigidity, suppressing chatter during deep-hole drilling in hard metals.
- HIWIN Linear Motion Components: Equips premium Taiwanese HIWIN linear guides and precision ball screws, enabling rapid X-axis traverse speeds of up to 60 m/min.
Precision Control & Calibration Standards
- ±0.02 mm Repeatability: Absolute servo drives on all motion axes ensure micro-step accuracy without homing errors.
- API Laser Interferometer Inspection: Every unit undergoes full 3D spatial accuracy compensation using American API laser measurement systems before factory acceptance testing (FAT).
Versatile Material Compatibility
The DNC-7003DT(R1) multi spindle drilling system processes round tubes, square pipes, rectangular profiles, and custom extruded shapes across diverse alloys: - Ferrous Metals: Carbon steel, alloy steel, stainless steel, cast iron. - Non-Ferrous Metals: Aluminum, copper, brass, zinc, titanium, platinum.
Applications in Energy & Heavy Engineering
- Oil & Gas Industry: Downhole oil stator tubes, drill collars, perforated casing pipes.
- Automotive & Transportation: Heavy vehicle structural cross-members, drive shafts, hydraulic cylinder tubes.
- Structural Engineering: Space frame steel tubes, architectural truss components, heat exchanger tube sheets.
For complementary equipment, explore our Multi-Angle Automatic Rotating CNC Drilling Machine or view our complete range of Four-axis CNC drilling machines.
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
Brochure| Model | DNC-7003DT(R1) |
| XZA three-axis machining stroke | X 6800mm, 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~M16 |
| Chamfer diameter range | 1~20mm |
| Rotating shaft clamping diameter | 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. 4000KG |
| Equipment Footprint | 8200mm 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 is the primary application of the DUOMI DNC-7003DT(R1) CNC drilling machine?
What drilling and tapping tolerances does this machine achieve?
How does the dual-spindle mechanism double processing efficiency?
What size pipes and tubes can be clamped on the rotary axis?
What programming formats are supported by the 4-axis control system?
Can DUOMI customize the stroke length or fixture system for non-standard tubes?
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