Standard Square Block
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The cast iron square block made of HT200 material is in compliance with the manufacturing standard of JB/T3411.56-99. The chief use of this cast iron measuring block is not only to inspect the verticality, depth of parallelism of parts, but also to support the workpiece for scribing. Generally, our precision cast iron block is a cube or cuboid in appearance. As well, it can be customized. One of its working surfaces has a V-shaped groove.
Environment Condition for Inspection: normal temperature and humidity
Parameters| Size(mm) | Working Surface Parallelism | Flatness of Working Surface | Verticality of Working Surface | |||
| Precision(μm) | ||||||
| 1 | 2 | 1 | 2 | 1 | 2 | |
| 100 × 100 × 100 | 2 | 4 | 2 | 4 | 2 | 4 |
| 150 × 150 × 150 | 3 | 6 | 3 | 6 | 3 | 6 |
| 200 × 200 × 200 | 4 | 8 | 2.5 | 4 | 4 | 8 |
| 300 × 300 × 300 | 6 | 12 | 2.5 | 4 | 6 | 12 |
| 400 × 400 × 400 | 8 | 16 | 4 | 8 | 8 | 16 |
| 500 × 500 × 500 | 20 | 40 | 5 | 12 | 20 | 40 |
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