Limits of dimensional tolerances for waxing castings

	Dimension size	Normal General requirements	Premium Special requirements
General Dimension	< 25mm 25 ~ 50mm 50 ~ 75mm 75 ~ 100mm 100 ~ 150mm > 150mm	± 0.25 ± 0.4 ± 0.5 ± 0.7 ± 0.8% ± 1.0%	± 0.15 ± 0.30 ± 0.40 ± 0.50 ± 0.65 ± 0.8%
Straightness	< 50mm 50 ~ 100mm 100 ~ 150mm > 150mm	± 0.25 ± 0.38 ± 0.5 ± 0.76	± 0.13 ± 0.25 ± 0.30 ± 0.37
Flatness	< 25mm 25 ~ 50mm 50 ~ 100mm 100 ~ 150mm	± 0.2 ± 0.4 ± 0.64 ± 0.76	± 0.1 ± 0.15 ± 0.25 ± 0.38
Concentricity	(Wall Thickness 6mm) 壁厚 6mm (Wall Thickness 12mm) 壁厚12mm	± 0.2 ± 0.3	± 0.1 ± 0.2
Radius	< 50mm > 50mm	± 0.4 ± 0.8%	± 0.13 ± 0.6%
Roundness	13 mm 25 mm 38 mm 50 mm	± 0.13 ± 0.25 ± 0.3 ± 0.38	± 0.1 ± 0.15 ± 0.20 ± 0.25
Roughness	Carbon Steel 碳钢 (300 Series S. S.) 300 系不锈钢 (400 Series S. S.) 400 系不锈钢	90 ~ 125RMS 90 ~ 125RMS 100 ~ 125RMS	60 ~ 90RMS 60 ~ 90RMS 60 ~ 100RMS
Minimum Wall Thickness	Carbon Steel 碳钢 Stainless Steel 不锈钢	1.5mm	1.0mm
Weight Limit		5g ~ 25kg	5g ~ 35kg
Dimension Limit		(below 300 * 300 * 300mm) 300 * 300* 300以内	(below 350 * 350 * 350mm) 350 * 350* 350mm以内

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Suitable material
  Carbon steel
  Low alloy steel
  Stainless steel
  Tool steel
  Special alloys

 

The casting trough tolerance

　(mm)

W	>= 2.5	4	6	8	10	16	20	24
L, D	<=5	8	20	32	46	80	120	150

 

 

 

 

Casting aperture and depth

 　(mm)

D	Tmax	T,max
3-5	5-10	5
> 5-10	> 10-30	> 5-15
> 10-20	> 30-60	> 15-25
> 20-40	> 60-120	> 25-50
> 40-60	> 120-200	> 50-80
> 60-100	> 200-300	> 80-100
> 100	> 300-350	> 100-120