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Woodworking Machines > Stair Machines > US Concepts INC. Specialist Stair Machinery

US Concepts INC. Specialist Stair Machinery

US Concepts Inc
A dedicated CNC stair router that machines both stringers simultaneously and handles the full range of common stair profiles — box step, open pan, open stringer, and horse cut — without manual jig changes between jobs. Built for joinery shops and stair manufacturers who need consistent results across repeated or varied stair sets.

Typically chosen by

  • Joinery shops producing bespoke or repetitive stair sets who need to reduce hand-routing time and improve consistency
  • Stair manufacturers running multiple stair configurations and needing quick, reliable programme changeover between jobs
  • Workshops where accuracy across tread profiles, riser angles, and stringer cuts is critical to fitting on site

Key specification considerations

Max Material Width
12"
Sets the upper limit on tread board width this machine can accept — confirm your widest tread blank against this figure before specifying.
Material Thickness Range
¾" – 3½"
Max Feed Speed
300 FPM
Machine Weight
Approx. 4,200 lbs (approx. 1,905 kg)
At nearly 1,900 kg, floor loading must be verified with your building or structural engineer before installation.
SpecificationValueNotes
CNC Control
FAGOR CNC 8055i/A, 3-axis
Router Motors
Two × 5HP high-speed router motors
Speed Controllers
Two adjustable speed drive controllers
Independent speed control on each motor allows feed and cut rates to be tuned to the timber species or profile being worked.
Standard Programmes
Standard Box Step with Round Nose; Blunt Nose with Rake or Straight Riser; Open Pan Rout with Partial or No Riser; Temporary Stair Rout; Centre Open Horse Cut
These programmes are built in as standard — the FAGOR control also retains full capability for editing existing programmes and entering new ones using standard CNC codes, so bespoke or non-standard profiles can be added; discuss requirements with us before ordering.
Open Stringer Cut
Yes — with 45° riser relief
The 45° relief cut is machined automatically as part of the stringer programme, removing a secondary hand operation.
Board Advance
Automatic — every cycle
Automatic advance removes the need for an operator to manually index material between cuts, supporting consistent output with a single operative.
Tool Shank Capacity
¾"
Max Material Width
12"
Material Thickness
¾" – 3½"
Max Feed Speed
300 FPM
Dust Extraction Outlet
8"
An 8" outlet requires a suitably sized extraction branch — confirm your existing extraction system can accommodate this diameter before installation.
Communication Ports
RS232, USB, Network
Network connectivity supports remote programme loading and supervision, which is useful if programmes are prepared off-machine by a CAD or estimating team.
Networking / Remote Supervision
Yes
Machine Dimensions
94" L × 60" D × 64" H (approx. 2,388 mm × 1,524 mm × 1,626 mm)
Allow additional clearance beyond the machine footprint for full-length stringer or board infeed and outfeed — the working envelope will extend considerably beyond the machine body.
Machine Weight
Approx. 4,200 lbs (approx. 1,905 kg)
Floor loading must be verified before installation.
Construction
Heavy-duty — cast iron arms and walls
Power Requirement
Three-phase — confirm supply requirements with IWM before installation
Phase, voltage, and amperage draw must be confirmed for your specific machine build before electrical supply is arranged — do not proceed without this information.

Is this the right
machine for you?

Choose the US Concepts INC. Specialist Stair Machinery if...

  • Your workshop produces stairs regularly enough to justify a dedicated CNC stair machine and the associated setup and programming time
  • You need to run multiple stair configurations — different tread profiles, open or closed stringers — and want quick programme changeover rather than manual jig changes
  • Consistency and repeatability across tread profiles is important to you, particularly where staircases need to fit to tight site tolerances
  • You have the floor space, electrical supply, and extraction capacity to support a machine of this size and weight

Consider an alternate model if...

  • Your stair output is lower volume or more occasional — the Pouwels DEF-50 Stair Making Machine may be a more proportionate fit and is worth discussing with us
  • You need to cramp and assemble stair components rather than machine them — the IWM 4 Piston Hydraulic Stair Cramps addresses a different part of the stair-making process and may be a complementary or standalone requirement
  • Your workshop cannot accommodate the floor loading of nearly 1,900 kg, or you are unable to confirm adequate three-phase electrical supply — these are prerequisites that need to be resolved before this machine can be specified
  • You are primarily cutting simple or single-profile treads at low frequency, where a router table or smaller machine would be sufficient
Still not sure? We're happy to help
Ready when you are

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workshop's output?

Book a specification call with one of our engineers. Thirty minutes, no obligation, plain English advice on what would actually work on your floor.