A 4 Axis CNC Wood Router is a powerful and versatile machine designed for advanced woodworking applications. Compared with traditional 3-axis CNC routers, this machine includes an additional rotary axis (A-axis), allowing it to process cylindrical and curved surfaces with high precision.
This makes it ideal for producing complex 3D designs such as table legs, chair legs, wooden columns, sculptures, and decorative furniture components.
The 4 Axis CNC Router is widely used across woodworking, metalworking, and composite fabrication industries:
• Furniture & Cabinet Making: Wooden doors, panels, office furniture, stair balusters, table legs, solid wood cabinets, and decorative cuttings. • Woodworking & Carpentry: Relief sculpture, Pierced work, musical instruments, gaming cabinets, computer desks, and custom wood projects. • Signage & Advertising: Acrylic and PVC cutting, logo production, signage boards, lightbox molds, and plastic decorative panels. • Metal & Composite Fabrication: Aluminum sheets, aluminum plastic panels, honeycomb panels, copper, stainless steel, and other metal parts. • 3D Cutting & Prototyping: Sculptures, statues, 3D architectural models, automotive and aerospace components, specialty molds, and industrial prototypes. • Panel Processing & Specialty Materials: MDF, plywood, epoxy resin, ABS, PP, PE, artificial stone, foam, and composite sheets.
| Specification | Details |
|---|---|
| Brand | iGOLDENCNC, customizable OEM options |
| Table Sizes | 2′ x 3′, 2′ x 4′, 4′ x 4′, 4′ x 6′, 4′ x 8′, 5′ x 10′, 6′ x 12′ (customizable for industrial applications) |
| Axes | 4 Axis CNC Router |
| Capabilities | 3D Sculpture, Relief Sculpture, Cylindrical & Multi-Surface Machining |
| Materials | Wood, MDF, Plywood, Acrylic, Plastic, Aluminum, Copper, Brass, Stainless Steel, Foam, Stone, Composites |
| Types | Hobbyist CNC Routers for home use, Industrial CNC Routers for commercial/manufacturing use |
| Compatible Software | ArtCAM, Type3, Cabinet Vision, CorelDraw, UG, SolidWorks, MeshCAM, AlphaCAM, UcanCAM, MasterCAM, CASmate, PowerMILL, Fusion360, Aspire, AutoCAD, Autodesk Inventor, Alibre, Rhinoceros 3D |
| Controllers | Mach3, Mach4, Ncstudio, OSAI, Siemens, Syntec, LNC, FANUC (customizable for industrial automation) |
| Price Range | $2,580 – $38,000 (depends on table size, spindle power, and optional features) |
| OEM & Custom Services | Customized X/Y/Z axis working area, spindle power, rotary axis configuration |
| Optional Parts & Accessories | Dust Collector, Vacuum Pump, Cooling System, Servo Motors, Colombo Spindle, Automatic Tool Changer |
Rotary Fourth Axis (A Axis — Workpiece Rotation)
The rotary fourth axis is a servo-driven chuck and tailstock assembly mounted on the machine table, aligned parallel to the X axis. It grips a cylindrical or near-cylindrical workpiece — a turning blank, a solid wood dowel, a prepared square stock piece — and rotates it around its long axis under CNC control while the router bit moves in X, Y, and Z simultaneously. The combination of workpiece rotation (A axis) and linear tool motion (X, Y, Z) allows the router bit to carve profiles, flutes, spirals, and decorative patterns around the full circumference of the rotating workpiece — producing chair legs, table pedestals, decorative balusters, twisted columns, newel posts, and any other furniture or architectural component with a round or complex cross-section that requires routing on multiple faces.
Swing Head Fourth Axis (A Axis — Spindle Tilt)
The swing head fourth axis tilts the spindle itself — rotating the cutting head from vertical to angled positions across a defined range, typically 0° to 90° or beyond. Rather than rotating the workpiece, the swing head changes the angular approach of the cutting tool relative to a flat workpiece that remains stationary on the table. This configuration is the right tool for beveled edge cutting, angled profile routing, compound miter face machining, V-groove work at compound angles, and any operation where the cut must approach the workpiece at an angle other than straight down — without the complex fixturing that tilting the workpiece manually would require.
The IGOLDENCNC 4 Axis CNC Wood Router is available in both configurations — and in combined configurations where both rotary workpiece capability and swing head tilting are available on the same machine — allowing you to specify the fourth axis type that matches your specific production requirements.
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Understanding precisely what each axis contributes to the IGOLDENCNC 4 Axis system's capability grounds the specification in the practical reality of woodworking production.
X Axis — Gantry Travel
The X axis drives the gantry along the length of the machine table — the primary linear axis for long cuts and the axis that drives the router bit along the length of a rotating workpiece in rotary carving applications. In rotary axis operation, X axis motion advance combined with A axis rotation produces the helical toolpath geometry that creates spiral fluting, twisted column profiles, and wrapped decorative patterns. X axis travel range determines the maximum workpiece or panel length the machine can process — on the IGOLDENCNC standard 4'×8' configuration, X axis travel covers 2,440mm with working clearance at both ends.
Y Axis — Spindle Traverse
The Y axis moves the spindle assembly across the gantry beam — traversing the router bit laterally across the workpiece. In rotary axis applications, Y axis positioning determines the lateral offset of the router bit from the rotary axis centerline — controlling the effective diameter of the carved feature at any given A axis and X axis position. For profiles that transition from a larger to smaller diameter along the workpiece length, the CAM program coordinates Y axis motion with X and A axis motion simultaneously to produce the programmed diameter transition.
Z Axis — Spindle Height
The Z axis controls the vertical position of the router bit — setting cut depth for all operations and providing the clearance height for rapid moves between cut paths. In rotary axis operation, Z axis position combined with Y axis position determines the effective depth of cut into the rotating workpiece at each point in the program. The Z axis also manages the transition between operations on a combined 4 axis machine — raising to clear height between a rotary carving pass and a subsequent flat-surface drilling operation without manual intervention.
A Axis — The Fourth Axis (Rotary or Swing Head)
The A axis is the defining additional capability of the 4 axis configuration — and its practical contribution depends on whether the fourth axis is a rotary workpiece unit or a swing head spindle tilt.
As a rotary axis, the A axis rotates the workpiece continuously under servo control while the X, Y, and Z axes move simultaneously — enabling the router bit to carve any profile around the full 360° circumference of the rotating workpiece. Spiral flutes require coordinated X advance and A rotation. Faceted profiles require A-axis indexing to each face position. Eccentric cams require Y-axis offsetting synchronized with A-axis rotation. The full range of classical and contemporary turned furniture profiles is accessible through different combinations of coordinated X, Y, Z, and A motion.
As a swing head axis, the A axis tilts the spindle from vertical to the programmed cut angle — enabling beveled edge cuts, angled profile routing, compound miter faces, and V-groove work at any angle within the swing range without workpiece repositioning. Fixed-angle operations lock the A axis at the programmed tilt before cutting begins. Continuously changing angle operations — curved beveled profiles and compound angle transitions — interpolate all four axes simultaneously for smooth angular transitions along the cut path.
A 3 axis CNC wood router moves its cutting tool in three linear directions — X (length), Y (width), and Z (height) — while the spindle always points vertically downward. This is entirely sufficient for flat panel cutting, pocketing, profiling, and engraving. A 4 axis router adds a fourth independent axis — either a rotary unit that rotates cylindrical workpieces to expose all faces to the cutter, or a swing head that tilts the spindle to angled positions for bevel and miter cutting. The fourth axis enables woodworking operations that a 3 axis machine geometrically cannot perform: carving chair legs and balusters, producing spiral fluted columns, routing beveled edges without tilting the workpiece, and machining angled joinery faces — all in a single CNC platform.
For production turning of consistent profiles — chair legs, table pedestals, and standard architectural balusters — the IGOLDENCNC 4 axis rotary configuration replaces the wood lathe with superior dimensional consistency, faster cycle time on production runs, and the ability to machine non-round profiles (faceted columns, fluted pilasters, and carved panel sections) that a lathe cannot produce. For freeform artistic turning where the craftsperson develops the profile interactively while the workpiece is spinning — a skill-based creative process — the lathe remains the appropriate tool. Most production furniture operations find that the IGOLDENCNC 4 axis system handles 80–90% of their cylindrical component requirements more productively than lathe turning, while retaining lathe capability for the remaining artistic and irregular work.
The 4 axis rotary configuration is most suited to: chair legs, table pedestals and bases, decorative balusters and newel posts, twisted and spiral columns, furniture knobs and pulls, carved architectural elements, and any component with a round or near-round cross-section requiring decoration or profiling on multiple faces. The 4 axis swing head configuration is most suited to: beveled cabinet door edges, angled furniture joint preparation, chamfered architectural panel edges, V-groove lettering and signage at compound angles, miter face preparation for frame and panel assemblies, and sloped surface routing on ergonomic furniture forms.
