5-Axis CNC Machine Buying Guide: Everything You Need to Know
By Meadoworks | April 2026 | 14 min read
Key Takeaways
- 3+2 vs simultaneous: Most shops use 3+2 positional machining for 80-90% of work — start there before adding simultaneous capability
- Configuration matters: Trunnion table for small/medium parts and rigidity; swivel head for large, heavy aerospace components
- Used pricing: $75,000 (Haas UMC-500) to $500,000+ (premium Hermle, Makino, multi-pallet Matsuura)
- Critical inspection: RTCP/pivot point calibration is the #1 check — failures here produce inaccurate parts even when individual axes test fine
- Total cost: Budget for CAM software (Mastercam, NX, hyperMILL) and programmer training — software/training can rival machine cost
5-axis CNC machines represent the pinnacle of subtractive manufacturing capability. They produce complex parts in a single setup that would require multiple operations on 3-axis machines — reducing cycle time, improving accuracy, and enabling geometries that are otherwise impossible. But 5-axis machines are also the most expensive and complex CNC equipment you can buy. This guide helps you navigate configurations, brands, pricing, and pitfalls of the used 5-axis market.
3+2 Axis vs. Simultaneous 5-Axis
Before shopping, understand the two fundamentally different ways 5-axis machines operate. The distinction affects machine selection, programming, cost, and what parts you can produce.
3+2 Axis (Positional)
Rotary axes lock the workpiece at a compound angle, then cutting is performed with only three linear axes — like a 3-axis machine that can tilt the part. Simpler programming, less demanding on machine accuracy.
Best for: Multi-side prismatic parts, angled holes, undercut access, setup reduction.
Simultaneous 5-Axis
All five axes move continuously and coordinated during cutting. The tool tip maintains optimal contact with complex curved surfaces, enabling impossible-to-machine geometries.
Best for: Turbine blades, impellers, blisks, propellers, mold surfaces, medical implants.
Which Do You Actually Need?
Honestly, most shops buying their first 5-axis machine will use 3+2 positioning for 80-90% of their work. Multi-side machining in one setup, undercut access, and shorter tools provide enormous value even without simultaneous capability. Virtually all modern 5-axis machines are mechanically capable of simultaneous motion — the difference often comes down to control system options and CAM software, which can be added later.
Machine Configurations
Trunnion Table (Workpiece Tilts)
Two rotary axes (A/C or B/C) below the workpiece. The spindle moves only in linear X, Y, Z. Most common configuration for small to mid-size 5-axis machines.
Pros: Compact, excellent rigidity, large work envelope relative to size, lower cost.
Cons: Workpiece weight limited by trunnion load capacity (typically 200–800 kg).
Swivel Head (Spindle Tilts)
The spindle head carries one or both rotary axes. The workpiece sits flat on a fixed or rotating table — no tilting required.
Pros: Ideal for large, heavy parts. Tables can support thousands of pounds of aerospace components.
Cons: Heavier head can affect dynamic performance. Typically more expensive.
Hybrid (B-Head + C-Table)
Combines a B-axis swivel head with a C-axis rotary table — for example, the Makino a500Z. Excellent versatility for mid-size parts.
Pros: Compact spindle head with rotary-table flexibility.
Cons: Premium pricing typical of high-end production 5-axis.
Key Specifications to Evaluate
Work Envelope
X/Y/Z travel and rotary swing diameter. The effective envelope at full tilt is often smaller than at 0°.
Rotary Axis Specs
Tilt range (often +30°/-120°), positioning accuracy (3-10 arc-sec), clamping torque, and table load capacity.
Spindle
12,000-15,000 RPM standard; 20,000-40,000+ for HSM. BT40/CAT40 typical, HSK-A63 for high-speed work.
RTCP / TCPC
Tool Center Point Control maintains tool tip position as rotary axes move. Accurate calibration is essential.
Top 5-Axis CNC Machine Brands
Each major builder targets a different segment of the 5-axis market. Used pricing varies significantly by model, age, and configuration.
DMG Mori
Models: DMU 50, 65, 80, 100, 125 (monoBLOCK series)
One of the most popular 5-axis platforms worldwide. Available in trunnion-table and swivel-head configurations with Siemens or Heidenhain controls. Solid build quality and a wide range of sizes.
Makino
Models: D500 (trunnion), a500Z (B-head + C-table)
Renowned for precision and surface finish quality. Production 5-axis workhorses favored in aerospace and medical. Premium prices, exceptional accuracy and reliability.
Mazak
Models: Variaxis i-300, i-500, i-600, i-700, i-800
Trunnion and trunnion/tilt-head configurations with Mazatrol SmoothAi control. Versatile and proven platform with strong service support.
Hermle
Models: C 22, C 32, C 42, C 52
German manufacturer known for exceptional 5-axis machines. Modified gantry design with trunnion table delivers outstanding rigidity and accuracy. Especially popular in mold/die and aerospace.
Matsuura
Models: MX-330, MX-520, MX-850 (MAM with multi-pallet)
Japanese manufacturer offering production-oriented 5-axis machines. Reliable, accurate, and available with multi-pallet systems for automated production.
Okuma
Models: MU-4000V, MU-5000V, MU-6300V
Trunnion-table 5-axis machining centers featuring Okuma's vertically integrated control/motor/spindle and Thermo-Friendly Concept for thermal stability.
Haas
Models: UMC-500, UMC-750
Most affordable entry point into 5-axis CNC. Capable for 3+2 work and lighter simultaneous applications. Excellent for job shops adding 5-axis on a budget.
Used 5-Axis Machine Pricing Summary
These ranges represent machines in good working condition with current or near-current control systems.
| Category | Examples | Used Price Range |
|---|---|---|
| Entry-level 5-axis | Haas UMC-500/750 | $75,000 – $150,000 |
| Mid-range production | DMG Mori DMU 50/65, Mazak Variaxis i-300/i-500 | $100,000 – $250,000 |
| Premium production | Makino D500, Okuma MU-5000V, Matsuura MX-520 | $150,000 – $350,000 |
| High-precision / large | Hermle C 42, Mazak Variaxis i-800, DMG Mori DMU 100 | $200,000 – $450,000+ |
| Automated multi-pallet | Matsuura MAM72, Makino a500Z w/ pallet, Hermle w/ RS | $250,000 – $500,000+ |
Common 5-Axis Applications
5-axis machines aren't just for exotic aerospace parts. The most common applications include:
- Multi-side machining in one setup — the single biggest productivity gain
- Undercut access — reach features 3-axis VMCs cannot
- Shorter tools, better rigidity — tilt the part to use stubbier cutters
- Complex contoured surfaces — turbine blades, impellers, mold surfaces
- Aerospace structural components — wing ribs, bulkheads with compound angles
- Medical devices — hip/knee implants, surgical instruments, dental prosthetics
- Mold and die — complex core/cavity surfaces, electrode manufacturing
What to Inspect on a Used 5-Axis Machine
Beyond standard CNC inspection items (spindle, ball screws, control, tool changer), 5-axis machines require additional checks unique to their rotary axis systems.
Rotary Axis Accuracy
Test positioning accuracy of both rotary axes. Use a test indicator on a precision sphere or ring gauge to check repeatability. Deviations indicate bearing wear, encoder issues, or calibration drift.
RTCP / Pivot Point Calibration
Most critical check. Mount a precision ball in the spindle and indicate against the table. Rotate each axis through full range — tool tip should hold position within 5-15 microns. Excessive deviation requires laser calibration.
Trunnion Bearing Condition
Check for play by applying force at the table edge while indicating. Bearing replacement on a trunnion can cost $10,000-$30,000+ including parts and labor.
5-Axis Test Cut
Gold standard inspection. The NAS 979 cone frustum test reveals alignment errors, interpolation issues, and dynamic accuracy problems that static checks miss.
Thermal Stability
Errors in rotary axes compound with linear axis errors. Run a warm-up cycle and re-check accuracy at operating temperature. High-end machines have thermal compensation systems.
Is a 5-Axis Machine Right for Your Shop?
- Do you need it? If most of your work requires machining 3+ sides or you spend significant time re-fixturing, 5-axis pays for itself in setup reduction alone.
- Can your team use it? 5-axis programming requires capable CAM software (Mastercam, NX, hyperMILL, ESPRIT) and programmers who understand 5-axis toolpaths and machine kinematics.
- Start with 3+2: Get 80% of the productivity benefit with much less programming complexity. Add simultaneous capability as your team's skills grow.
- Used is smart: A 5-8 year old machine from a premium brand has decades of useful life and costs 40-60% less than new.
Frequently Asked Questions
What is the difference between 3+2 and simultaneous 5-axis machining?
In 3+2 axis machining (also called positional 5-axis), the two rotary axes lock the workpiece at a fixed angle, then the machine cuts using only three linear axes. It's like a 3-axis machine that can tilt the part to access different faces. In simultaneous 5-axis machining, all five axes move at the same time during cutting, allowing the tool to continuously reorient relative to the workpiece surface. Simultaneous 5-axis is required for complex contoured surfaces like turbine blades, impellers, and organic shapes. 3+2 handles most prismatic multi-side work and is simpler to program.
How much does a used 5-axis CNC machine cost?
Used 5-axis machine prices range from about $75,000 to $500,000+. Entry-level machines like the Haas UMC-500 start around $75,000-$150,000 used. Mid-range production 5-axis machines (Mazak Variaxis, DMG Mori DMU) run $100,000-$350,000. Premium high-precision 5-axis machines (Hermle, Makino, Matsuura MAM) can exceed $400,000+ on the used market. The specific price depends on brand, age, hours, work envelope size, and configuration.
Is a trunnion table or swivel head better for 5-axis machining?
Neither is universally better — each excels in different applications. Trunnion table machines (workpiece tilts) offer larger work envelopes relative to machine size and excellent rigidity during cutting. They're ideal for small to medium parts and production environments. Swivel head machines (spindle tilts) keep the workpiece stationary on a large table, making them better for large or heavy parts that would be impractical to tilt. Many aerospace shops prefer swivel heads for large structural components.
What should I inspect when buying a used 5-axis machine?
Beyond standard CNC inspection items (spindle, ball screws, control), 5-axis machines require additional checks: rotary axis accuracy and repeatability (both A/B or B/C axes), pivot point calibration (RTCP/TCPC accuracy), thermal stability during operation, rotary axis backlash, trunnion bearing condition, and any kinematic calibration data. Run a 5-axis test piece (like the NAS 979 cone) if possible — this reveals alignment and interpolation errors across all axes simultaneously.
Browse Used 5-Axis CNC Machines at Meadoworks
Meadoworks stocks used 5-axis machining centers from DMG Mori, Makino, Mazak, Hermle, Matsuura, Okuma, Haas, and other leading builders. Need help choosing the right machine? Our equipment specialists can guide you.
