SZG series gravel pump is a single-stage single-suction cantilever horizontal centrifugal pump withadvantages of light weight,good cavitation performance, good wear-resistant, wide flowchannel, convenient for installation. It adopts single-body structure which connects with cassette, It canfeed big granule resistant dredge, perfectly suited for the dredge on the whole construction. The pumpmainly consists of pump head, seal assembly, bearing assembly and support, The fashion of lubrication isgrease lubrication. The materials of flow parts, such as impeller, pump body, front plate liner, rear plateliner, uses wear-resistant iron alloy or steel alloy, The rigidity ofthe flow parts is not less than HRC58.