Hardness is rated from A-Z with ‘A’ being the weakest bond and ‘Z’ being the strongest. A weak bond is preferred for grinding harder materials while a stronger bond is desired for softer materials. A typical weak bond for steel would be in the ‘F, G or H’ range. A medium hardness would be in the ‘I, J or K’ range. And stronger bonds in the ‘L, M, or O’ range. Hardness is dependant on the grit type, the material being ground, the amount of stock removed, and a number of other factors.
What’s lead time for bulk order?
1)for 5~25 tons, it takes around 10~15days. 2)For 26~200 tons,20-40days We will try to deliver it with the promise of quality guarantee as soon as possible