Tolerances

Our lasers have a typical cutting accuracy of within 0.5mm.

Edge Squareness

Plate Thickness (mm) Edge Squareness Tolerance (mm)
3-50mm 1mm
60-150mm 2mm
160-200mm 3mm
225-300mm 5mm

Length and Width

Tolerance up to 1500mm (add 1mm for every 1500mm)

Plate Thickness (mm) Length and Width Tolerance up to 1500mm Length and Width Tolerance extra per 1500mm
3-50mm +-2mm 1mm
60-150mm +-3mm 1mm
160-200mm +-5mm 1mm
225-300mm +-5mm 1mm

Rectangle Squareness Tolerance

Measured from corner to corner

Plate Thickness (mm) Length < 1000mm Length 1000mm to 2500mm Length 2510mm to 3500mm Length 3510mm and over
3-50mm 2mm 3mm 4mm 5mm
60-150mm 3mm 4mm 5mm 6mm
160-200mm 5mm 6mm 7mm 8mm
160-200mm 5mm 6mm 7mm 8mm

Cut Hole Tolerance

Measured from corner to corner

Hole Diameter Tolerance (top) Tolerance (bottom)
3-50mm +-2mm +-2mm
60-150mm +-3mm +-2mm
160-200mm +-5mm +-2mm
225-300mm +-5mm +-2mm

Other Technical Information

Plasma Cut Holes vs Drilling

Plasma cut holes are significantly cheaper than drilled holes, however there are considerations that must be made to decide which option is best for you:

  1. Cut Hole diameters should always be 2mm larger than the plate thickness, otherwise hole shape can be out of round with a ragged finish.
  2. Cut holes can vary in diameter by some 4mm overall. OK for bolt holes as long as hole accuracy is not critical.  Should request holes to be 2mm larger than required.
  3. If the hole tolerance is critical then drilled holes should be requested.

Heat Affected Area on Quench and Temper Plate

Although a lot of care is taken when cutting Q&T there will always be a minimal heat affected zone that will have significantly lower hardness than the rest of the plate.  Jobs should not be tested after cutting or welding due to the heat used.

Bending

Different strength materials have limitations on how tight the part can be bent.  This needs to be taken into account when designing the part.