Specifications
| Specimen Specifications | Outer Diameter 63.5 mm, Inner Diameter 12.7 mm, Thickness 12.7 mm, Length 220 mm, Hardness 60~70 |
| Probe shaft speed | 76 ± 2 rpm (GB standard); 250 ± 5 rpm (BS standard) |
| Specimen inclination angle range | 0°~45° |
| Load | 26.7±0.2 N |
| Grinding wheel size | Diameter 150 mm, Film thickness 25 mm, Central hole diameter 32 mm, particle size 36 #, abrasive aluminum oxidation |
| Grinding wheel shaft return speed | 34±1 rpm |
| Counter | 0~999，999 |
| Tongming external Dimensions | 58×52×46 cm（L×W×H） |
| Weight | 60 kg |
| Power | AC 220V，50 Hz |
Packing list
complete-built unit X1, manual X1, certificate of conformity X1, warranty card X1
After-sales instructions
Warranty days: 365 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/35915/Specification.html , which is only used by users who purchase commodities from the NBCHAO.