Tolerance Casting design reference data
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1. Tolerance (mm)
| Casting Basic Size (mm) | ≤10 | 10~25 | 25~50 | 50~75 | 75~100 | 100~150 | 150~200 | 200~250 | >250 |
| General Tolerance(mm) | ±0.15 | ±0.25 | ±0.35 | ±0.50 | ±0.65 | ±1.00 | ±1.50 | ±1.80 | ±1.00% |
| Special Tolerance (mm) | ±0.10 | ±0.15 | ±0.25 | ±0.40 | ±0.50 | ±0.75 | ±1.00 | ±1.20 | ±0.60% |
2. Flatness, straightness, roundness
| Casting Basic Size (mm) | 0~25 | 25~50 | 50~100 | 100~150 |
| Tolerance (mm) | 0.2 | 0.4 | 0.6 | 0.8 |
3. Ra/μm
| Ra6.3~3.2 |
4.The ultimate tolerance of the slot can be cast
| Items | (φmm) Diameter (φmm) | L / D |
| φ2~φ3 | L / D ≤ 1 | |
| φ4~φ7 | L / D≤ 2 | |
| ≥φ8 | L / D ≤ 2.5 | |
| φ2~φ3 | L / D ≤ 2 | |
| φ4~φ7 | L / D≤ 4 | |
| ≥φ8 | L / D ≤ 5 |
5. Size and Weight Range
| Items | Max | Min | Best |
| Profile (mm) | 1000×300×300 | 20×10×10 | <150×100×100 |
| Weight(Kg) | 40 | 0.015 | 0.2~5 |
| Thickness(mm) | ─ | 1.0 | 5~15 |
6. Structure Proposal

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