JLCSD250 series dredgers can apply to all kinds of geologic structures and can be widely used in mineral digging ,port(channel)dredging and reclamation works.By absorbing advantaged technology of Dutch and American related products, this series of dredgers show their characteristics of rational design ,all hydraulic control,, simple operation, little maintenance and strong power. The capacity of JLCSD dredgers ranges from 100m3/hr to 1000m3/hr, dredging depth from 1m to 25m and discharge distance from 500m to 3000m,which can satisfy different work demands .