CNC Machining & Cutting of 44mm Solid Rubberwood Stair Treads: High-Density Nesting & Fast Turnaround

In high-end architectural fit-out and custom staircase manufacturing, machining precision and managing thick solid wood panels are critical. On behalf of Artelix (artelix.fr), a bespoke staircase specialist and manufacturer, the ALCYDE workshop delivered the CNC milling of complex winding stair treads in 44 mm thick solid glued-laminated Rubberwood, combining ultra-optimized nesting layout with industrial agility.

This project showcases our CNC subcontracting expertise for woodworking professionals and manufacturers handling custom geometries and heavy hardwood thicknesses.

1. Technical Challenge: High-Precision CNC Milling on Heavy Thickness (44 mm)

Machining solid or glued-laminated wood in 44 mm thickness requires specific tooling strategies on a CNC router. Mechanical and thermal constraints are significantly higher than standard 18 mm panels:

1.1 Cutting Force Management & Chip Evacuation

At a depth of 44 mm, the volume of removed material is substantial. ALCYDE applies a rigorous machining strategy:

• Stepped depth-of-cut strategy: Multi-pass CNC milling with calibrated cut depth to eliminate tool deflection and ensure pristine edge finish.
• High-performance solid carbide tooling: High-flow helical carbide end mills ensuring continuous chip evacuation without overheating or burning the timber.

1.2 Sharp Edges & Tear-Out-Free Finish

Stair treads are prominent, heavy-traffic architectural elements where edge quality must be impeccable:

• Clean cuts on both top and bottom faces without chipping.
• Smooth, perfectly square edges immediately ready for final sanding, varnishing, and sealing.

1.3 Integrated Drilling & Fastening Pockets

All mounting holes, positioning bores, and hardware pockets were completed in a single setup, guaranteeing micrometric center-to-center accuracy for quick on-site assembly.

2. High-Density Nesting: Maximizing Material Yield

44mm glued-laminated Rubberwood is a premium, dense material with significant raw material cost. Nesting optimization was paramount to project profitability.

2.1 Millimetric Nesting of Winding Geometry

Using our advanced Nesting algorithms, the trapezoidal and angled winding treads were nested tightly on the raw slab:

• Drastic waste reduction: Smart geometric layout maximizing parts per panel.
• Grain orientation respect: Strict alignment with wood grain to preserve structural integrity and aesthetics.

2.2 High-Power Vacuum Hold-Down

Milling narrow, heavy solid wood pieces under high cutting loads demands uncompromising clamping:

• Powered by our industrial 11 kW vacuum system, each tread remained rigidly secured until the final profile pass.
• Zero vibration, zero micro-shifting, holding dimensional tolerances at ± 0.1 mm.

3. Speed and Agility for Staircase Manufacturers

1. Seamless CAD/CAM Integration: Direct processing of 2D/3D CAD files (DXF, DWG, STEP) provided by Artelix.
2. Fast CAM Toolpathing: Rapid toolpath generation and G-code simulation.
3. 48-Hour Rapid Production: Machine scheduling and machining completed within 48h to meet client installation deadlines.
4. Protective Packaging: Labeled, inspected, and palletized parts ready for safe pickup or transit.

4. Project Summary

Need CNC Machining for Staircases or Solid Wood Parts?

Whether you are a staircase maker, joiner, or interior fitter, ALCYDE provides CNC routing capabilities from thin sheet goods to solid timber up to 60 mm thick.

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