High G dryer (high G dryer) and vertical cutting dryer (vatex dryer) are the main equipmetn of waste management system.
Many clients cannot well tell the difference of them.
From function:
High G dryer (high G dryer) is mainly used for water base drilling cuttings. Like GNZS853 high G shaker. 
Vertical cutting dryer (vatex dryer) is mainly used for oil base mud. With water base cutting, cannot work well.
Regarding cost, vertical cutting dryer is a relative expensive equipment compared with high G shaker.
Users can shoose right equipment according to his own mud condition.