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1.The sandbox: equipped with adjustable to 150 + 5 ℃ heat conducting plate.
2. The sand height: > 5cm.
3. Sand grain size: 0.3 ~ 1.0mm.
4. The heat transfer medium: standard Ф 5 mm steel ball, the total quality of 4 kg.
5. Copper/cu ni thermocouple: welding a copper disk with a thickness of 2 + / 1mm and a diameter of 15 + / 1 mm.
6.Temperature measurement and recording device: with 5 fitting, with compensator.
7. The temperature control precision: plus or minus 2 ℃.
8. Hot plate maximum temperature: 250 ℃.
9. Heating power: 2.5kw
10.Test area: about 250 x 460mm or 400 x 400mm.
11.Volume: about 105 x 45 by 55cm
