| Model | Application | Hardness range | Workpiece size (mm) |
|---|---|---|---|
| W-20 | Aluminum profiles | 25 - 110HRE 58 - 131HV |
Thickness 0.6-6, inner diameter >10 |
| W-20A | Thickness 0.6-13, inner diameter >10 |
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| W-20B | Thickness 0.6-8, inner diameter >6 |
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| W-B75 | Brass | 63 - 105HRF | Thickness 0.6-6, inner diameter >10 |
| W-B75B | Thickness 0.6-8, inner diameter >6 |
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| W-BB75 | Red copper | 18 - 100HRE | Thickness 0.6-6, inner diameter >10 |
| W-BB75B | Thickness 0.6-8, inner diameter >6 |
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| W-B92 | Stainless steel sheets, cold-rolled steel |
50 - 92HRB | Thickness 0.4-6, inner diameter >10 |
W-20: the most popular model, used to test normal aluminum profiles.
W-20A: used to test aluminum profiles with thickness within 13 mm.
W-20B: used to test aluminum tubings with inner diameter over 6 mm.
W-B75: used to test brass tubings and brass sheets.
W-BB75: used to test copper tubings and copper sheets.
W -B92: used to test soft stainless steel sheets, cold-rolled steel, etc.