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Alloys
A broad range of ferrous and non-ferrous metals are used. We produce all kinds of stainless steels, carbon steels, alloy steels and non-ferrous materials products in ASTM, DIN, AISI, JIS... standards according to the customer's requirements.
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Weight
From 2 grams up to 30kg (65 lbs), depending upon part configuration.
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Size
Up to 0.63 m x 0.63 m (25" x 25"), max length 0.95 m (37.5"), min thickness 1.5mm (0.06"), depending upon part configuration.
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Linear tolerances

The general standard for linear tolerance of investment castings is ¡Ó.005 per inch of length. Tighter tolerances can be made available for a few selected design characteristics. However, please note that tighter tolerances usually require special procedures and/or secondary operations which can increase the cost and the production time.

General parameters for linear investment casting tolerances are shown below:

Inches Millimeters
Dimension Normal Premium Dimension Normal Premium
up to 1/2" ¡Ó.007 ¡Ó.003 up to 12.7 ¡Ó.18 ¡Ó.08
1/2" to 1" ¡Ó.010 ¡Ó.005 12.7 to 25.4 ¡Ó.25 ¡Ó.13
1" to 2" ¡Ó.015 ¡Ó.010 25.4 to 50.8 ¡Ó.38 ¡Ó.25
2" to 3" ¡Ó.020 ¡Ó.015 50.8 to 76.2 ¡Ó.51 ¡Ó.38
3" to 4" ¡Ó.025 ¡Ó.018 76.2 to 101.6 ¡Ó.64 ¡Ó.46
4" to 5" ¡Ó.030 ¡Ó.020 101.6 to 127.0
¡Ó.76 ¡Ó.51
5" to 6" ¡Ó.032 ¡Ó.022 127.0 to 152.4 ¡Ó.81 ¡Ó.56
6" to 7" ¡Ó.035 ¡Ó.025 152.4 to 177.8 ¡Ó.89 ¡Ó.64
7" to 8" ¡Ó.038 ¡Ó.028 177.8 to 203.2 ¡Ó.96 ¡Ó.71
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Angularity
Angular tolerance on investment castings should not be less than ¡Ó1/2¢X.
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Concentricity
Concentricity tolerance varies according to straightness at about ¡Ó.005" per linear inch of difference between points of measure.
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Roundness
Out of round is the radial difference between a true circle and the cast surface diameter. The standard tolerance is ¡Ó.005 per inch for axial straightness, roundness (bar or tube shapes) and positioning of holes or bosses.
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Flatness
Flatness is measured as the distance between two parallel planes, within which the entire surface of the part must lie. Flatness deviation is a function of shrinkage in the wax and metal in solidification. It is directly related to the thickness of the cross-section and although each casting will vary individually, a rough tolerance guide would be .003" T.I.R. (Total Indicator Reading), for each 1/4" thick section. This variation will be apparent in surfaces of 1" or more linear dimension.
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