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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 °”.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" °”.007 °”.003 up to 12.7 °”.18 °”.08
1/2" to 1" °”.010 °”.005 12.7 to 25.4 °”.25 °”.13
1" to 2" °”.015 °”.010 25.4 to 50.8 °”.38 °”.25
2" to 3" °”.020 °”.015 50.8 to 76.2 °”.51 °”.38
3" to 4" °”.025 °”.018 76.2 to 101.6 °”.64 °”.46
4" to 5" °”.030 °”.020 101.6 to 127.0
°”.76 °”.51
5" to 6" °”.032 °”.022 127.0 to 152.4 °”.81 °”.56
6" to 7" °”.035 °”.025 152.4 to 177.8 °”.89 °”.64
7" to 8" °”.038 °”.028 177.8 to 203.2 °”.96 °”.71
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Angularity
Angular tolerance on investment castings should not be less than °”1/2ĘX.
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Concentricity
Concentricity tolerance varies according to straightness at about °”.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 °”.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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