Buying a used RA-1X can be a smart, cost-efficient move — but experienced manufacturers evaluate far more than just price. Here’s what serious buyers look at before closing a deal.

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1️⃣ Machine Geometry & Structural Integrity (Most Critical)

The RA-1X is known for Japanese rigidity and precision. However, after decades of use:

• Check spindle taper runout (micron-level inspection)
• Ball screw backlash measurement
• Linear guide or box way wear condition
• Machine level and twist condition
• Inspect casting for stress cracks (especially around column & base)

Successful buyers always request:

• Ballbar test results
• Laser calibration report
• Recent accuracy inspection data

If unavailable, budget for re-calibration.

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2️⃣ Spindle Condition & Maintenance History

Spindle replacement is one of the highest costs.

Check:

• Bearing noise during warm-up
• Temperature stability after 30–60 minutes
• Surface finish quality on test cut
• Toolholder seating condition
• Spindle hours (if recorded)

If original spindle → factor in possible rebuild cost.

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3️⃣ Control System & Electronics

Most RA-1X units use older generation CNC controls (often Fanuc-based).

Ask:

• Is the control fully functional?
• Any alarm history?
• CRT monitor replaced?
• Battery backup status?
• Parameter backup available?

No parameter backup = major risk.

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4️⃣ Tool Changer & ATC Reliability

The RA-1X tool changer is durable but must be tested.

Inspect:

• Tool arm alignment
• Magazine indexing accuracy
• Tool pocket wear
• ATC cycle time consistency

Run at least 20 consecutive tool changes during inspection.

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5️⃣ Parts Availability & Support

Although Matsuura Machinery Corporation has strong global support, RA-1X is an older model.

Before buying:

• Confirm local distributor support
• Check availability of:
  • Spindle parts
  • Control boards
  • Servo drives
• Verify whether retrofit options exist

Sometimes retrofit to modern Fanuc/Siemens is more economical long-term.

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6️⃣ Application Fit (Not Just Price Fit)

Successful manufacturers ask:

• What tolerance is required?
• Is this machine for roughing or finishing?
• What material will be cut?
• Required spindle speed vs original spec?

If production requires:

• High-speed machining
• Heavy titanium cutting
• 24/7 unmanned operation

RA-1X may require upgrades.

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7️⃣ Electrical Compatibility

Japanese-built machines may require:

• Voltage conversion
• Transformer installation
• Phase compatibility check
• Frequency (50/60 Hz) adjustment

Confirm:

• Power requirements
• Control cabinet condition
• Cooling system compatibility

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8️⃣ Provenance & Usage History

Serious buyers investigate:

• Original owner type (toolroom vs heavy production)
• Operating environment (clean aerospace shop vs harsh casting facility)
• Maintenance logs
• Storage conditions (humidity damage risk)

Toolroom machines generally have less structural fatigue.

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9️⃣ Total Cost of Ownership (TCO)

Never focus only on purchase price.

Calculate:

• Purchase cost
• Transportation
• Rigging
• Installation
• Calibration
• Tooling investment
• Possible retrofit
• 12-month maintenance reserve

Sometimes a “cheap” machine becomes expensive.

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🔟 Test Cut Requirement (Non-Negotiable)

Before final payment:

• Perform actual machining test
• Measure dimensional accuracy
• Check circularity
• Inspect surface finish
• Evaluate repeatability

No test cut = high risk.

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Final Insider Perspective

Successful manufacturers don’t buy used CNC machines based on brand name alone — even a respected Japanese machine like the RA-1X must be evaluated technically, financially, and strategically.

A well-maintained RA-1X can deliver:

• Excellent rigidity
• Reliable precision
• Long service life

But only if verified properly.

1. Machine Type & General Configuration

• Machine Type: 3-Axis CNC Vertical Machining Center
• Manufacturer: Matsuura Machinery Corporation (Japan)
• Control System (Typical): Yasnac J300 CNC
• Spindle Taper: BT40 / ISO 40
• Number of Axes: 3 (X, Y, Z)
• Automatic Tool Changer (ATC): Standard configuration

The RA-1X is known for its rigid Japanese casting structure, compact footprint, and reliable medium-duty machining performance.

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2. Axis Travels & Work Envelope

Axis	Travel (Metric)	Travel (Inch Approx.)
X-Axis	~550 mm	~21.6 in
Y-Axis	~400–410 mm	~15.7–16.1 in
Z-Axis	~460 mm	~18.1 in
Table Size	~600 × 380 mm	~23.6″ × 14.9″

These travels make the RA-1X suitable for small to medium precision components.

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3. Spindle Specifications

• Maximum Spindle Speed: Up to 15,000 RPM (depending on version)
• Spindle Power: Approx. 5.5 – 7.5 kW (≈ 7.5 – 10 HP)
• Spindle Taper: BT40
• Drive Type: Belt-driven or direct (varies by build year)

Higher spindle speed versions are especially suitable for aluminum and light alloy machining.

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4. Tool Changer (ATC)

• Tool Capacity: Typically 30 tools
• Tool Type: BT40
• ATC Type: Arm-type automatic tool changer
• Tool Change Time: Varies (usually fast for its class)

Inspection of ATC alignment and indexing accuracy is critical when buying used.

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5. Table & Workpiece Capacity

• Maximum Table Load: Approx. 250–300 kg
• T-Slot Configuration: Standard T-slot table
• Workpiece Size Capability: Medium-sized components within 3-axis envelope

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6. Feed Rates & Motion

• Rapid Traverse Rate: Typically robust for its class (exact values vary)
• Cutting Feed Rate: Programmable via control
• Axis Drive System: Ball screws with servo motors

Backlash condition should always be checked in used units.

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7. Machine Dimensions & Weight

• Approximate Footprint: ~2.7 m × 2.8 m × 2.8 m
• Machine Weight: Approximately 4,000 – 4,600 kg

Compact size makes it suitable for smaller workshops or toolrooms.

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8. Electrical Requirements

• Japanese voltage configuration (often 200V 3-Phase)
• May require transformer depending on installation country
• Frequency compatibility (50 / 60 Hz) must be verified

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9. Common Optional Features (Depending on Seller)

• Chip conveyor
• Coolant system
• Touch probe
• Tool presetter
• Work light & enclosure upgrades
• Possible control retrofit

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10. Typical Applications

The RA-1X is commonly used for:

• Precision toolroom machining
• General metal cutting
• Aluminum and mild steel components
• Small batch production
• Prototype manufacturing

It is not typically designed for heavy high-torque roughing or large mold machining.

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Important Note for Buyers

Since most RA-1X machines are older generation models:

• Confirm control functionality
• Check spindle condition and noise
• Verify parameter backup
• Measure ball screw backlash
• Perform a real test cut before final payment