Drag type CPT Machine (TPC-15T, TPC-20T)
                
It has two axles each of which assembles two tyres under the chassis. At each corner of the chassis, there is one mechanical support leg, namely total four legs, to lift the chassis.

Drag type CPT Machine is developed on the basis of the current domestic commonly used bulk hydraulic twocylinder static penetration testing machine, it absorbs the advantages of the structure of the bulk hydraulic static testing machine, light and flexible, easy to operate. With the advantage of large-scale static probe vehicles that can be easily transported over long distances, a trailermounted chassis is set up, and the dispersed components are arranged in an orderly manner, thereby reducing labor intensity and improving work efficiency. In addition to the conventional static penetrating test, it can also be subjected to tests such as flat scoop swell test, field cross-plate shear test, wave velocity test, hole pressure multi-function static probe and so on. test.