Seat and opened type discoidal feeder is the auxiliary equipment for the transport machinery, as the positive displacement type feeder. Take the material to the next equipment, the quantity could be adjusted. Because its upper adjusting ring is opened, so it is suitable for the room with low level air purification. Feeding the small material with little dust. It is suitable for coal dressing, coal mining, chemical industry, cement, metallurgy, mineral dressing and so on others.

It is not suitable for feeding the sticky, immobilized and good mobility things. This machine can be divided into KR, CK, KRY types.

Item type	Diameter (mm)	Speed (rpm)	Max feeding size(mm)	Motor speed (kw)
Φ600	600	8.5	25	1.5
Φ800	800	8.5	25	1.5
Φ1000	1000	7.6	<50	3
Φ1200	1200	7.6	<50	3
Φ1500	1500	7.6	<50	7.5
Φ1600	1600	7.5	<50	11
Φ2000	2000	7.5	<50	11