(1)沙子烘干機直流電動機可控硅調(diào)速;

(2)繞線型轉(zhuǎn)子異步電動機，沙子烘干機電阻調(diào)速及可控硅串激調(diào)速;

(3)電磁調(diào)速異步電動機(又稱滑差電動機);

(4)沙子烘干機整流子變速異步電動機;

(5)沙子烘干機鼠籠型多速異步電動機;

(6)用變更皮帶輪方法對沙子烘干機進行調(diào)速.