The sand surface Hardness Tester is used to measure the surface hardness of the wet mold sand mold/core, and provide Specifications for formulating the molding process.
The sand surface Hardness Tester is divided into three types: A, B, and C, and the commonly used type is B type. in:
Type A: Suitable for surface hardness testing of fine sand molds/cores for manual or mechanical low and medium pressure molding.
Type B: suitable for surface hardness testing of fine and coarse sand molds/cores for manual or mechanical low and medium pressure molding.
Type C: suitable for testing the surface hardness of sand molds for high-pressure molding.
The unit of type B of the sand surface Hardness Tester is (g/mm), but it is customary to use the hardness H (A/B/C) instead of the unit. Because their values are related and consistent, if the unit value is large (g/mm), the corresponding hardness value is also large.
Average value calculation, maximum value latch, underVoltage alarm indication function.
Use USB cable, bluetooth data output to communicate with PC.

|
model | HT-6510S-A | HT-6510S-B | HT-6510S-C |
| Compression stroke | 2.50mm | 2.50mm | 2.50mm |
| load | 237g | 980g | 1500g |
| Preload | 90g | 50g | 180g |
| Indenter shape and size | Ball R2.50 | Ball R12.70 | Ball R1.20 |
| Units of measurement | HA | HB | HC |
| display parameters | Hardness value/average value/** value | ||
| monitor | 4 digits 10mm LCD | ||
| display range | 0HA(HB/HC)~100HA(HB/HC) | ||
| Measuring range | 10HA(HB/HC)~90HA(HB/HC) | ||
| Accuracy | ≤±1HA(HB/HC) | ||
| resolution | 0.1HA(HB/HC) | ||