Aluminum Miter Saw – MECAL SW 451

The Mecal “SW 451” is a back cut aluminum miter saw to cut  straight and miter aluminum profiles. The blade is activated by means of an hydro-pneumatic cylinder. The operator holds the two push buttons until the cut is completed. As soon as one or both buttons are released, the blade retract in its own housing.
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The Mecal “SW 451” is a back-cut aluminum mitre saw ideal for applications such as residential and commercial windows, railings as well as industrial aluminum profile cutting requiring mitre cutting. The saw can cut straight or mitre both on vinyl or aluminum extrusions.

An hydro-pneumatic cylinder ensures the precise and uniform feed speed of the blade. Two pneumatic horizontal cylinders hold the extrusion firm in place for the maximum precision of the cut. The “SW 451” features a tilting head capable to cut mitre angles ± 45° both right and left. Intermediate angles are also possible by adjusting intermediate mechanical stops.


To perform the cut, the operator must hold simultaneously two pushbuttons with both hands. As soon as the cut is performed and one button is released, the blade retract in its own housing.


The Mecal “SW 451” back-cut aluminum mitre saw is provided with a lifting cover as part of the standard safety features to provide full protection to the operator.


  • Blade ∅ 450mm or 500mm
  • cutting fluid reservoir
  • Venturi misting system
  • automatic lifting of the protection hood
  • adjustable feed speed
  • dust and chips outlet connection

  • Hydro-pneumatic blade feed
  • Infinitely adjustable saw blade feed speed
  • Two-hand controlled safe operation
  • Tilting range 45° left, 90° and 135° right
  • Possibility to set mechanical stops for intermediate angles
  • Automatic lifting of the protection cover
  • Dust and chips suction port
  • Single piece casted aluminum alloy machine base engineered for better chip/scrap evacuation

  • Motor: 2.2kW (3HP), 230V, 50Hz
  • Blade speed: 2800 RPM
  • Blade diameter: 450mm (17¾") or 500mm (19.7")
  • Blade hub diameter: 30mm (1.18")
  • Operating air pressure: 7 Bar (101 psi)
  • Ability to perform cuts at 45°, 90°, 135

  • 1 x Saw blade Ø 450mm (17¾")
  • 2 x Pneumatic horizontal clamps
  • 1 x Spray mist blade lubrication system (Venturi)
  • prepared for dust and chip suction

  • Spare Ø 450mm (17¾") saw blade
  • 20 litres (5.3 gal) pail of cutting fluid
  • MKN 300 roller conveyor - 3m (10')
  • 2 x Pneumatic vertical clamps
  • Custom made counter blocks