... has two advantages 1) High frequency heating, more equal, dry faster; 17times faster than wood dust burnt dryer. The ... cycle are mainly 20-30hours.2) Vacuum condition, dry faster in lowr temperature to eliminate the problem of split ... heats from inside, so the core of wood will dry first, and then gradually to the outside, then the ... on the temperature, this is a big advantage. Instant wood dryer(3CBM)