General Casting Limits

Linear Up to 13mm ± 0.08mm (up to ½" ± 0.003) Up to 25mm ± 0.13mm (up to 1" ± 0.005) Over 25mm ± 13mm per 25mm (over 1" ± 0.005 per inch) Angular Angles should not be toleranced closer than ± ½º Holes Up to 6mm ± 0.08mm (up to ¼" ± 0.003) Up to 25mm ± 0.13mm (up to 1" ± 0.005) Over 25mm ± 0.10 per 25mm (over 1" ± 0.004 per inch) Concentricity Outside diameter 18mm 25mm 38mm 51mm Inside diameter 6mm 13mm 19mm 25mm T.I.R Eccentricity 0.2mm 0.25mm 0.3mm 0.38mm Ovality Diameter up to 13mm 13mm to 25mm 25mm to 38mm Ovality T.I.R 0.25mm 0.3mm 0.4mm Flatness / Straightness Generally held to ± 0.1mm per 25mm depending on configuration. Draft Angles Not required Ingate Witness A witness of approximately 0.25mm will be left in the position shown on the marked up drawing sent with our Form Of Supply. Size Capacity 400mm x 400mm x 300mm Weight Capacity 25 Kilograms: Ferrous 5 Kilograms: Aluminium

N.B. All of the above tolerances are achievable with the correctly designed casting and are dependant on alloy selection.