Product Introduction
The 4-axis CNC router is an advanced machining tool equipped with X, Y, Z, and a fourth axis that allows the spindle to swing ±90°, enabling complex angle cuts and multi-sided machining. This swing capability allows the machine to process surfaces from multiple angles without repositioning the material, making it ideal for intricate 3D carving, undercutting, and deep surface engraving. AccTek Group’s 4-axis CNC routers are built for precision, flexibility, and high-performance operation across various materials, including wood, MDF, foam, plastic, and soft metals. The swinging spindle design supports advanced applications such as mold making, sculpting, and precision part production. These machines are widely used in industries like furniture, decoration, art, and aerospace prototyping. CNC routers feature robust frames, powerful spindles, and user-friendly control systems for reliable performance and efficient workflow. Perfect for businesses seeking to expand their production capabilities, the 4-axis CNC router delivers exceptional versatility and high-quality results.
Types of 4 Axis CNC Routers
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AKM-4A1 CNC Router
$10,800.00 – $12,400.00 This product has multiple variants. The options may be chosen on the product page -
AKM-4A2 CNC Router
$14,000.00 – $15,600.00 This product has multiple variants. The options may be chosen on the product page -
AKM-4A3 CNC Router
$19,000.00 – $20,600.00 This product has multiple variants. The options may be chosen on the product page -
AKM1325-4A CNC Router
$10,800.00 – $19,000.00 This product has multiple variants. The options may be chosen on the product page -
AKM1530-4A CNC Router
$11,400.00 – $19,600.00 This product has multiple variants. The options may be chosen on the product page -
AKM2030-4A CNC Router
$12,000.00 – $20,200.00 This product has multiple variants. The options may be chosen on the product page -
AKM2040-4A CNC Router
$12,400.00 – $20,600.00 This product has multiple variants. The options may be chosen on the product page -
AKM1325C-4A CNC Router
$14,000.00 – $19,000.00 This product has multiple variants. The options may be chosen on the product page
Application of 4 Axis CNC Routers
4-axis CNC routers with a ±90° swinging main axis are used in industries that require complex angle machining, multi-surface cutting, and 3D contouring. In woodworking, they are ideal for creating furniture parts such as curved legs, armrests, and decorative trims that require precision from multiple angles. In mold making, they process intricate cavities and core shapes with undercuts and angled surfaces. In the sculpture and art industry, they carve statues, reliefs, and custom 3D artwork with detailed, dynamic forms. In aerospace and automotive prototyping, they are used to shape lightweight parts, patterns, and composite structures. In signage, they create dimensional letters and artistic engravings with depth and angled cuts. AccTek Group’s 4-axis CNC routers enhance productivity by reducing repositioning and manual adjustment. They support a wide range of materials, including wood, foam, plastic, and soft metal. These machines are ideal for businesses seeking greater design freedom, surface complexity, and processing efficiency.
Customer Testimonials
4 Axis CNC Routers VS Other Engraving Machines
Comparison Item | 4 Axis CNC Router | Laser Engraving Machine | CNC Milling Center | CNC Lathe |
Axis Configuration | X, Y, Z + A (±180° spindle swing) | Typically X, Y (Z for focus) | X, Y, Z (3 to 5 axis options) | X, Z (rotating workpiece) |
Spindle Movement | Tilts and rotates for angled cutting | Fixed focus head | Linear toolpath | Stationary tool, rotating part |
Ideal For | Complex 3D carving, angled surfaces | Flat surface engraving | Precision 3D part machining | Cylindrical part shaping |
Material Compatibility | Wood, plastic, foam, soft metals | Wood, acrylic, coated metals | Metals, plastics, and composites | Metals and plastics |
Undercutting Capability | Yes (swinging spindle) | No | Yes (multi-axis only) | No |
Part Repositioning Needed | No (multi-angle in one setup) | Yes (for multi-side marks) | Often required for angles | Yes |
Machining Depth | Medium to deep | Shallow marking only | Deep with precision | Deep for round parts |
Complexity of Shapes | High (3D and multi-angled) | Low to medium (2D/flat) | High (complex geometry) | Low (rotationally symmetrical) |
Production Flexibility | High (sculpture, mold, furniture) | Medium (limited to surface marks) | High (prototypes, high tolerance) | Medium |
Cutting Precision | High (±0.1 mm) | Very high (±0.01 mm) | Very high (±0.01 mm) | High (rotational parts) |
Speed | Fast for soft materials | Very fast on thin materials | Moderate | Fast for round parts |
Tool Wear | Moderate (depends on material) | None | High (especially for metals) | Medium |
Automation Compatibility | High (CNC control) | High | High | High |
Setup Complexity | Moderate | Low | High | Medium |
Ideal Applications | Sculptures, mold making, 3D carving | Signage, tags, surface etching | Aerospace parts, molds, and tooling | Shafts, bushings, cylindrical items |
Why Choose Us
AccTek Group is a professional manufacturer of CNC routers, delivering high-precision cutting, engraving, and milling solutions for wood, metal, plastic, and other materials. Our machines are engineered for stability, accuracy, and long-term performance, making them suitable for a wide range of industries, including furniture making, signage, prototyping, and metal fabrication. With advanced motion systems, powerful spindles, and intelligent control software, we help manufacturers enhance productivity and reduce labor costs. Backed by years of expertise in CNC technology, AccTek Group is committed to offering reliable machines, expert technical support, and tailored solutions that meet the evolving demands of modern production environments.
High Precision & Efficiency
AccTek CNC routers deliver fast, accurate results with minimal errors, supporting intricate designs and mass production across the woodworking, plastic, and metal industries.
Robust and Durable Design
Our machines are built with high-quality frames and components, ensuring long service life, high load-bearing capacity, and stability during high-speed operations.
Intelligent Control Systems
Equipped with user-friendly interfaces and smart controllers, our routers offer smooth motion control, automatic toolpath optimization, and easy integration with various CAD/CAM software.
Flexible Customization
From machine size to spindle power and motor type, we offer flexible configurations to suit different production needs, budgets, and material requirements.
Related Resources
What Is CNC Routing?
2025-03-10
Discover the fundamentals of CNC routing, its applications, advantages, challenges, and how advanced CNC technology enhances precision and efficiency across industries.
Frequently Asked Questions
What Can 4-Axis CNC Routers Do?
In 4-axis CNC routers, the 4th axis is oscillating, typically allowing the spindle to tilt or pivot ±90°. Unlike rotary-axis CNC routers that spin the workpiece, this type rotates the spindle itself, offering more tool movement flexibility. Here’s what this configuration can do:
- Angled Surface Cutting: The oscillating spindle can tilt to cut bevels, chamfers, or angled edges without needing a special fixture. Useful in mold making, edge profiling, and decorative work.
- Deep 3D Carving: Tilting the tool allows for smoother surface finishing on complex 3D shapes by maintaining a better cutting angle, improving detail, and reducing tool marks.
- Improved Tool Contact: By tilting the spindle to match the part’s geometry, the machine can keep the tool in optimal contact, extending bit life and improving cut quality.
- Sloped Drilling or Routing: Drill or route holes and channels at an angle without repositioning the part—helpful in furniture making, cabinetry, and aerospace panels.
- More Efficient Multi-Axis Machining: While not as versatile as full 5-axis machines, a 4-axis CNC router with oscillating capability bridges the gap, allowing semi-complex geometries with fewer setups and more precision.
How To Choose 4-Axis CNC Routers?
If you’re looking at a 4-axis CNC router with an oscillating spindle—meaning the spindle can tilt ±90°—you’re stepping into more advanced machining. These machines are ideal for angled cuts, undercuts, and complex 3D surfaces. Here’s how to choose the right one:
- Understand Your Application:
- Angled drilling or routing
- Undercuts and compound curves
- 3D mold making and surface detailing
- Furniture, cabinetry, or aerospace panels with angled features
- If your work involves these, an oscillating 4-axis CNC is a smart choice.
- Spindle Power (Match to Material):
- 0kW–4.5kW: Sufficient for wood, plastics, MDF, and light composite jobs.
- 5kW–7.5kW: Better for hardwoods, heavy-duty machining, or deeper cuts at high speeds.
- Tilting the spindle adds mechanical stress, so power matters.
- Strong, Rigid Frame:
- Look for a steel or industrial aluminum frame—essential for accuracy during angled cuts.
- The machine must stay rigid even when the spindle tilts at extreme angles.
- Axis Travel and Z-Clearance:
- Confirm enough Z-axis clearance to allow for the spindle to tilt without hitting the workpiece or table.
- Larger parts or deep carvings need more vertical space.
- Controller and Software:
- Choose a controller that handles 4-axis simultaneous motion, like Syntec, RichAuto A11, or Mach4.
- Ensure compatibility with software that supports 4-axis toolpaths, such as Fusion 360, PowerMill, or ArtCAM.
- Toolpath and Simulation Capabilities:
- You’ll need an accurate 4-axis simulation to prevent tool crashes and verify motion before running a job.
- CAM software should allow you to define spindle angles per operation.
- Cooling and Dust Collection:
- Air- or water-cooled spindle to handle longer jobs with more complex motion.
- A flexible dust shoe that moves with the oscillating spindle helps maintain visibility and cleanliness.
- Service and Support:
- Look for vendors who offer tech support, spare parts, and training, especially for machines with advanced axis movement.
- Good support matters more with 4-axis CNC routers due to the added complexity.
How Much Do 4-Axis CNC Routers Cost?
4-axis CNC routers with an oscillating spindle (±90° tilt) offer greater flexibility for angled cuts, undercuts, and complex 3D surface machining. Their cost reflects the added mechanical complexity, stronger build, and more advanced control systems. Here’s a breakdown:
- Standard 4-Axis CNC Router ($12,000–$15,000): These machines include a tilting spindle but no automatic tool changer. Ideal for workshops doing detailed woodwork, cabinetry, mold making, or angled drilling. They provide solid performance for medium-duty tasks where multiple tool changes aren’t needed frequently.
- ATC 4-Axis CNC Router ($15,000–$25,000): Includes an Automatic Tool Changer, allowing the spindle to switch tools mid-job without manual intervention. Great for high-efficiency workflows, production runs, or jobs requiring multiple tool types (e.g., roughing, finishing, engraving). This version is faster, more flexible, and suited for professional and industrial users.
What Materials Can 4-Axis CNC Routers Process?
4-axis CNC routers with an oscillating spindle (±90° tilt) can process a wide range of materials. The added tilt axis allows the machine to cut at angles, reach undercuts, and follow complex contours that 3-axis CNC routers can’t handle, making them more versatile across industries. Here’s what they can work with:
- Wood
- Softwoods: Pine, cedar, fir
- Hardwoods: Oak, walnut, maple, cherry
- Engineered wood: Plywood, MDF, particle board
- Plastics
- Acrylic (PMMA)
- Polycarbonate
- PVC
- HDPE
- Foam
- Rigid foam
- Polyurethane foam
- EVA foam
- Composites
- Carbon fiber
- Fiberglass
- Phenolic
- Aluminum (Light-duty)
- Soft aluminum
- Cast aluminum plates
- Solid Surface Materials
- Corian
- Acrylic stone
- Similar synthetic surfaces
What Are The Disadvantages Of 4-Axis CNC Routers?
While 4-axis CNC routers with an oscillating spindle offer more flexibility than standard 3-axis CNC routers, they also come with added complexity, cost, and limitations. Here are the key disadvantages:
- Higher Cost: Machines with tilting spindles are more expensive than standard 3-axis CNC routers due to added mechanics, motors, and control systems. This includes both purchase price and maintenance costs.
- Increased Complexity: Programming angled toolpaths requires more advanced CAD/CAM software and greater operator experience. Mistakes in angle setup can lead to part errors or tool crashes.
- Larger Size and Heavier Build: To support spindle tilting, the machine frame often needs to be stronger and larger, which takes up more floor space and may require a reinforced foundation.
- Slower Machining Speed: Oscillating motion can reduce cutting speed, especially on complex contours. Tilting also increases toolpath length, which may extend cycle times.
- More Maintenance Points: The oscillating spindle assembly has more moving parts—bearings, motors, pivot mechanisms—that require regular maintenance and are more prone to wear.
- Limited Metal Cutting Capability: Even with spindle tilt, these machines are not built for hard metals like steel or titanium. They are best suited for wood, plastics, foam, and soft metals like aluminum.
- Software Compatibility Requirements: Not all CAM software supports 4-axis tilting motion natively. You may need to upgrade to more advanced (and more expensive) software to take full advantage of the machine.
What Spindle Power Options Are Available for 4-Axis CNC Routers?
4-axis CNC routers with an oscillating spindle require higher spindle power than standard 3-axis machines. The tilting motion adds extra mechanical load and requires more torque for stable, accurate cutting, especially at angles. Here are the common spindle power options:
- 6.0kW Spindle
- Ideal for medium-duty use in woodworking, plastics, and composites.
- Provides enough power for most 3D carving, angled drilling, and light aluminum cutting.
- Best for shops doing moderate production with occasional complex surface work.
- 7.5kW Spindle
- A strong choice for continuous use and more demanding materials like hardwoods, solid surface, and dense composites.
- Handles deeper cuts, faster feed rates, and longer tool life under heavier loads.
- Well-suited for industrial shops doing mold making, cabinetry, or high-volume 4-axis work.
- 9.0kW Spindle
- Heavy-duty spindle built for high-performance machining.
- Excellent for cutting large, complex parts with high spindle tilt usage.
- Recommended for shops dealing with large 3D parts, tight tolerances, or extended daily operation.
What Is The Lifespan Of 4-Axis CNC Routers?
4-axis CNC routers are built for advanced, angled machining. Their lifespan depends on machine quality, usage, and maintenance, but generally:
- Typical Lifespan
- 8–15 years with proper maintenance and responsible use. High-end industrial models may last longer, especially if used in clean, controlled environments.
- Spindle Lifespan
- Air-cooled spindles: Usually last 6,000–10,000 hours
- Water-cooled spindles: Offer better heat management and may last longer with heavy or continuous tilt operations
- Spindles are wear parts and often need replacement during the machine’s lifetime.
- Oscillating Axis Wear
- The ±90° tilt mechanism introduces extra moving parts—gears, motors, and linkages—which can wear faster than the standard X, Y, and Z axes. Regular maintenance (like checking pivot alignment and lubrication) helps extend its service life.
- Factors That Affect Lifespan
- Usage intensity: Heavy daily use wears parts faster
- Materials processed: Harder materials = more wear
- Build quality: A rigid frame, precision rails, and industrial-grade components last longer
- Maintenance: Cleanliness, lubrication, and calibration make a big difference
- Environment: Dusty, hot, or humid workshops reduce component life
What Maintenance Is Required For 4-Axis CNC Routers?
4-axis CNC routers with an oscillating spindle (±90° tilt) require all the standard maintenance of a traditional CNC router, plus additional care for the tilt mechanism. Regular upkeep keeps the machine accurate, extends its lifespan, and prevents costly breakdowns. Here’s what you need to maintain:
- Daily Maintenance
- Clean the Work Area: Remove dust, chips, and debris from the table, rails, and moving parts.
- Inspect Tools and Bits: Check for wear, cracks, or dull edges. Replace or sharpen as needed.
- Lubricate Rails and Lead Screws (if not automatic): Apply manufacturer-approved lubricant to linear guides and ball screws to reduce wear.
- Check for Air Leaks (if pneumatic): Ensure all air lines are tight and pressure is stable if your system uses pneumatics.
- Weekly Maintenance
- Check Spindle Condition: Listen for unusual noise, check for heat buildup, and inspect for vibration.
- Inspect Oscillating Axis Components: Examine the tilt mechanism—gears, motors, bearings, and pivot points—for wear, misalignment, or loose hardware.
- Verify Axis Movement: Jog each axis (including the tilt axis) to ensure smooth, accurate travel without binding.
- Clean and Inspect Cable Tracks and Connectors: Remove debris and check for wear or fraying in drag chains and wiring.
- Monthly Maintenance
- Tighten Bolts and Fasteners: Vibration can loosen frame bolts, tilt motor mounts, and spindle brackets—tighten all structural components.
- Check and Adjust Belt or Gear Tension (if applicable): Some tilt axes use belt or gear drives that can loosen over time.
- Clean and Re-lubricate Oscillating Joints or Bearings: Apply grease or oil to pivot points and check for bearing wear.
- Run Calibration Test: Confirm machine accuracy with test cuts and adjust offsets or toolpaths if needed.
- Annual or Long-Term Maintenance
- Replace Worn Bearings or Spindle (as needed): Spindles and oscillating motors eventually wear out—replace when noise, vibration, or tolerance loss occurs.
- Inspect Control System and Update Software: Ensure firmware is up to date and settings are optimized for 4-axis motion.
- Full Mechanical Inspection: Evaluate the machine’s structural and motion components, especially the tilt mechanism, for long-term wear or misalignment.
Get CNC Routing Solutions
AccTek Group is a professional CNC router manufacturer dedicated to providing high-performance, reliable, and cost-effective solutions for your cutting, engraving, and milling needs. Whether you’re in woodworking, metal fabrication, advertising, or another industry, our expert team is ready to help you find the right machine to boost your productivity and efficiency.
If you have questions about our CNC routers, need a customized solution, or want to learn more about machine specifications, pricing, or delivery, we’re here to assist you every step of the way.
Simply fill out the contact form, email us, or reach out via phone. One of our knowledgeable representatives will get back to you promptly with the information you need. Partner with AccTek Group and take your manufacturing capabilities to the next level.
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