Programmable Stair Stringer Router

Equipment Features

  • Fully programmable CNC (Computer Numeric Control) 4-axis servo driven machine
  • Programmable Touch Screen for simple stair characteristic input by operator
  • Downloadable with CAD parameters through a .dxf file, making it a true CNC machine
  • Two (2) high frequency routers with 5 HP/24,000 RPM fan-cooled spindles that can accommodate shanks of ½” or ?” diameter
  • Accepts one or two stringers at a time – ¾”, 1″ or 1- ½” thick for a total of 3″ maximum thickness and 7- ¾” to 15- ¾” wide
  • Extra wide ¾” guide rails for more bearing surface with a 3- ¼” high fence
  • Four (4) cylinder clamps – 2 fixed and 2 adjustable – for up to 1,700 pounds of stringer clamping force
  • Self-centering feed system on roller bearing for better support and elimination of wear on the brass parts
  • Dust collection cups on each router for clean, efficient operation
  • Accommodates staircase angles from 20 degrees to 45 degrees and riser kickback from 5 degrees to 11 degrees
  • Cuts up to ½” deep in yellow pine at the maximum rate of 20″ per second and an open stringer in a single cut
  • Programmable to cut any combination of box, contemporary, or open stairs
  • Completes the top and bottom landing cut without additional handling or manual sawing
  • Unlimited setting for wedge fit or material variances
  • Comes with manufacturer’s standard 1 year warranty


Gross weight approx. 3,500 pounds
Measures approx. 8′ x 6′ 5″ x 7′
Cycle time approx. 10 seconds per 7/11 tread in 1 or 2 stringers
Air requirements 110psi at 15cfm (minimum ¾” diameter unrestricted line)
Electrical requirements 230V 3-phase at 70 amps

Available Options

Multi-Bag Portable Vacuum/Dust Collector
Parts Kit for fast handling of user-replaceable parts