Mira J9 5-Axis CNC Mill
The Mira J9 is a desktop 5-axis simultaneous CNC mill designed for machining plastic, hard wood, and metal. The system includes an automatic tool changer, enhanced carriages, a high-performance spindle, and a hermetically sealed work area.
Rotary Head & Kinematics
The rotary head utilizes a dual-bearing support structure, a harmonic reducer, and a servo motor.
Supported on both sides.
The dual-bearing support structure carries the rotary head at both ends, with rotation driven through a harmonic reducer by a servo motor.
The A-axis is mechanically aligned with the linear axes to maintain kinematic accuracy.
True simultaneous 5-axis
Three linear axes (X, Y, Z) plus two rotary axes (A, B) turning 360° continuously - the workpiece presents to the cutter from any angle in one setup.
15-tool automatic changer
Triggered via the M6 command, the software interface, or a button in the work area, behind an automated chip-resistant cover. The Tool Height Sensor measures tool height after every change.
60,000 RPM Nakanishi spindle
The NSK Nakanishi E3000 3060 AQC - 350 W, ceramic bearings, pneumatic tool clamping, runout (spindle accuracy) under 1 micron (0.001 mm). 60,000 RPM with air, 30,000 without.
1-micron pallet positioning
The Quick-Release System mini pallet repositions within 1 micron - a workpiece can leave the machine and return to the same position. Vice or direct screw mounting.
Resolution of 0.3 microns
The smallest commanded move is 0.0003 mm, with positioning of 0.008 mm and repeatability of 0.010 mm - verified before every machine ships.
Sealed, on standard power
A hermetically sealed work area for plastic, hard wood, and metal - drawing roughly 2.0 kW from single-phase 110 or 220 VAC. 660 lb (300 kg) on a 36.6 × 28.7″ footprint.
Workpiece Holding
The machine supports traditional mounting methods and a Quick-Release System (QRS) utilizing a mini pallet.
Off, on, and back within a micron.
The QRS pallet positioning accuracy is within 1 micron - a workpiece can leave the machine and return to the same position.
Workpieces can be secured using a standard vice or mounted directly to the pallet with screws.
Standard vice
Square and irregular stock clamps in a vice fixed to the pallet - the traditional mounting method, unchanged.
Direct screw mounting
Plates and fixtures bolt straight to the pallet - no vice in the way of the cutter. Custom pallets are available on request.
Automatic Tool Changer
The ATC features a 15-tool capacity and is protected by an automated, chip-resistant cover. Tool clamping is pneumatic and operates using an air-powered system.
Fifteen tools, three triggers.
Tool changes can be triggered automatically via the M6 command, manually through the software interface, or via a physical button in the work area.
A Tool Height Sensor (THS) equipped with an LED contact indicator automatically measures tool height after every change.
Spindle Specifications
The machine is equipped with the NSK Nakanishi NR3060-AQC spindle (E3000 series).
60,000 RPM with air. 30,000 without.
Maximum speed is 60,000 RPM with air and 30,000 RPM without - at 350 watts, with runout (spindle accuracy) under 1 micron (0.001 mm).
Tools mount in conical holders and clamp pneumatically with compressed air - the same architecture as industrial-scale CNC equipment.
Coolant System
Two modes, independently configurable, both aimed at the cutting zone.
Mist or flow.
Mist mode delivers a user-adjustable mixture of pressurized air and coolant to clear chips from the cutting zone.
Coolant mode delivers low-pressure liquid coolant directly to the tool. Flow is controlled by an electromagnetic valve that creates customizable pulsing intervals.
Applications
The machine is designed for a wide range of scientific and manufacturing applications requiring 5-axis micro-milling of metals and other hard materials.
Everything on one bench.
Motion, tool changer, coolant, and the dual-bearing rotary head in a 36.6 × 28.7 × 42″ footprint. The numbers reference the photograph.
The spindle
NSK Nakanishi E3000 3060 AQC - 60,000 RPM with air, 350 W, runout (spindle accuracy) under 0.001 mm. Tools mount in conical holders and clamp pneumatically. Coolant nozzles flank the collet.
Tool magazine
15 stations behind an automated, chip-resistant cover that shields the magazine during machining and opens on change.
Dual-bearing rotary head
Supported at both ends, driven through a harmonic reducer by a servo motor. The A-axis is mechanically aligned with the linear axes to maintain kinematic accuracy.
Tool Height Sensor
An LED contact indicator confirms the touch - tool height is measured automatically after every change.
NS-Motion control
The 5-axis control program. Tool changes trigger from the M6 command, the software interface, or the physical button in the work area.
Full technical
specifications
Machine Overview
- Model
- 912 Mira J9, 5-Axis
- Type
- Desktop Simultaneous CNC Mill
- Materials
- Plastic, Hardwood, Metal
- Linear Axes
- X, Y, Z
- Rotary Axes
- A, B
- Codes
- Universal G & M
Accuracy
- Resolution
- 0.00001″ (0.0003 mm)
- Positional Accuracy
- 0.0003″ (0.008 mm)
- Repeatability
- 0.0004″ (0.010 mm)
- Rotary A/B Resolution
- 0.10 Arc-Sec
Motion
- Linear Drive
- Ball Screws · Precision LM Guide
- Max Feed Rate
- 200 in/min (5,000 mm/min)
- Max Rotary Speed
- 300°/sec (A & B)
- A Turntable
- 6″ (150 mm)
- B Turntable
- 4″ (100 mm)
- Backlash
- Zero
- Motors
- AC Servo, 200W
- Encoders
- 16-bit Absolute
Spindle
- Brand
- NSK Nakanishi, Japan
- Model
- E3000 3060 AQC
- Speed (with air)
- 60,000 RPM
- Speed (without air)
- 30,000 RPM
- Power
- 350W
- Runout
- < 0.001 mm
- Bearings
- Ceramic
Tool Changer
- Capacity
- 15 tools
- System
- Nakanishi QC3-K
- Method
- Pneumatic
- Standard Collet
- 1/8″ (3.175 mm)
- Collet Range
- 1.00–6.35 mm (0.1 mm steps)
Air
- Filter
- Built-in, 0.3 micron
- Spindle Pressure
- 40 psi
- ATC Pressure
- 87 psi
Coolant
- Type
- Liquid, self-filtered
- Circulation
- Continuous
- Capacity
- 6 gal (23 L)
Working Envelope
- X
- 4.0″ (102 mm)
- Y
- 4.0″ (102 mm)
- Z
- 5.0″ (140 mm)
- A & B
- 360° continuous
Machine
- Width
- 36.6″ (920 mm)
- Depth
- 28.7″ (730 mm)
- Height
- 42.0″ (1,050 mm)
- Weight
- 660 lb (300 kg)
Power
- Supply
- 110 or 220 VAC, 50/60 Hz
- Draw
- 10.0 A @ 110V
- Consumption
- ~2.0 kW
Environment
- Temperature
- 41–113°F (5–45°C)
- Humidity
- 30–80%
- Idle Noise
- ≤70 dB(A)
Common questions.
What materials does it machine?
Plastic, hard wood, and metal. Applications include rapid prototyping, watch production, microscopic sensors, biomedical components, and micro-scale structures.
How do tool changes work?
The ATC holds 15 tools behind an automated, chip-resistant cover. Changes trigger via the M6 command, through the software interface, or via a physical button in the work area. After every change, the Tool Height Sensor - an LED contact indicator that registers the touch - measures tool height.
What spindle does it use?
The NSK Nakanishi NR3060-AQC (E3000 series): 60,000 RPM with air, 30,000 RPM without, 350 watts, with runout (spindle accuracy) under 1 micron (0.001 mm). Tool clamping is pneumatic.
Does it need compressed air?
For full capability, yes. The spindle reaches 60,000 RPM with air (30,000 RPM without), tool clamping is air-powered (40 psi at the spindle, 87 psi for the ATC), and a 0.3-micron filter is built in.
How big a part can it machine?
The working volume is 4.0″ (102 mm) in X, 4.0″ (102 mm) in Y, and 5.0″ (140 mm) in Z, with both rotary axes turning 360° continuously.
How does the Quick-Release System work?
Workpieces mount to a mini pallet - in a standard vice or directly with screws - and the pallet seats on its chuck with positioning accuracy within 1 micron, so work can leave the machine and return to the same position. Custom pallets are available on request.
How does the coolant system work?
Two modes. Mist mode delivers a user-adjustable mixture of pressurized air and coolant to clear chips from the cutting zone. Coolant mode delivers low-pressure liquid coolant directly to the tool, with flow controlled by an electromagnetic valve that creates customizable pulsing intervals.
What power and space does it need?
Single-phase 110 or 220 VAC, drawing approximately 2.0 kW. The machine measures 36.6″ W × 28.7″ D × 42″ H (920 × 730 × 1,050 mm) and weighs 660 pounds (300 kg).
One more look, a quote, or a purchase.
See it cut
Machining demonstrations across NS CNC machines - including the Mira J9 milling metal on camera.
Request a quote
Send a part drawing - material, dimensions, tolerances. We’ll tell you whether it’s a Mira J9 job, how we’d run it, and what the machine costs.
Buy it outright or finance it
The Mira J9 is sold direct through NS CNC; equipment financing is available through our financing partner.