Japan, Obishi Keiki
Obishi Keiki Seisakusho EA Series I-Beam Type Straight Edge
Made in Japan
Manufacturer : Obishi Keiki Seisakusho
Model: EA Series
Features
- Use for inspection of machined surfaces and as standard guide.
- I type with minimal strain.
- The precision surface is graduated excluding 20mm form both edges. (Same for Nominal Measurement).
- In order to make products 1500mm and above more portable a handling hole is provided.
Specifications
Grade A
| Nominal Measurement |
Measurement (L×H×Wmm) |
Hardened | Non Hardened | Straightness , Parallelism (μm) |
Mass (kg) |
|---|---|---|---|---|---|
| Code No. | Code No. | ||||
| 500 | 540×50×10 | EA101 | EA201 | 7 | 2.0 |
| 750 | 790×60×12 | EA102 | EA202 | 9.5 | 3.8 |
| 1000 | 1040×60×12 | EA103 | EA203 | 12 | 5.0 |
| 1500 | 1540×70×15 | EA104 | EA204 | 17 | 9.5 |
| 2000 | 2040×90×20 | EA105 | EA205 | 22 | 22.0 |
| 2500 | 2540×100×20 | EA106 | EA206 | 27 | 35.0 |
| 3000 | 3040×120×22 | EA107 | EA207 | 32 | 45.5 |
| 3500 | 3540×135×22 | EA108 | EA208 | 37 | 65.0 |
| 4000 | 4040×140×25 | EA109 | EA209 | 42 | 75.0 |
| 5000 | 5040×150×30 | EA110 | EA210 | 52 | 130.0 |
Grade B
| Nominal Measurement |
Measurement (L×H×Wmm) |
Hardened | Non Hardened | Straightness , Parallelism (μm) |
Mass (kg) |
|---|---|---|---|---|---|
| Code No. | Code No. | ||||
| 500 | 540×50×10 | EA301 | EA401 | 20 | 2.0 |
| 750 | 790×60×12 | EA302 | EA402 | 25 | 3.8 |
| 1000 | 1040×60×12 | EA303 | EA403 | 30 | 5.0 |
| 1500 | 1540×70×15 | EA304 | EA404 | 40 | 9.5 |
| 2000 | 2040×90×20 | EA305 | EA405 | 50 | 22.0 |
| 2500 | 2540×100×20 | EA306 | EA406 | 60 | 35.0 |
| 3000 | 3040×120×22 | EA307 | EA407 | 70 | 45.5 |
| 3500 | 3540×135×22 | EA308 | EA408 | 80 | 65.0 |
| 4000 | 4040×140×25 | EA309 | EA409 | 90 | 75.0 |
| 5000 | 5040×150×30 | EA310 | EA410 | 110 | 130.0 |
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