方圆给DEEPACK的回复:Upto 30 kg/m3 expander there is a tolerance of +/- 3% up to 30 kg/m3 and for 40 kg/m3 tolerance is +/- 6% during production.
Up to 30 kg/m3 preexpander if you want to take production of 40 kg/m3 then you have to cut off censor and run preexpander on timer. But then tolerance will be 6%.
If you go for high density expander that is from 40 kg/ m3 to 90 kg m3 then tolerance is only 2% during production. The cost of this preexpander will be more $ 12000 USD then up to 30 kg/m3
This information is provided by Fangyan