YDJ Hydraulic pipe jacking machineDetailed product description：

The YDJ hydraulic pipe jacking machine adopts pre jacking, reverse pulling, and hole enlargement to complete the pipe laying process in one go. The double cylinder and double piston rod can top the pipe with a length of 50m and a hole enlargement diameter of 500mm. The specifications are complete, and the cylinder diameter is:

ф140 ф160
ф180 ф200

YDJ hydraulic pipe jacking machine is generally not suitable for excavating underground cables, optical cables, water pipes, etc. that need to cross highways, railways, rivers, or other obstacles in the city, so specialized equipment is required. The pipe jacking machine is most suitable for the above situations. Using the straight top method, the pipe jacking machine is placed in the roadside working pit, and with a certain pressure, the required pipeline can be directly pushed horizontally under the roadbed to the opposite side. The depth of soil in the pipeline is 1.0 meter depending on the diameter of the pipe. The diameter of the top pipe is 800-200mm, and the length of the top pipe is 500 meters. There are specifications ranging from 35-500 available for selection.

model	Thrust (T)	Travel distance (mm)	Work pressure (mm)	Cylinder diameter (mm)	Rod diameter (mm)
YDJ-3/16	fifty	100~1000	sixty-three	ф100	ф70
YDJ-3/16	one hundred	200~1500	eighty	ф125	ф70
YDJ-4/16	one hundred and fifty	200~1500	eighty	ф160	ф100
YDJ-8.9	two hundred	150~2000	forty-five	ф240	ф160
YDJ-12.53	three hundred	200~2000	fifty	ф280	ф200
YDJ-12.53	five hundred	200~2000	fifty	ф360	ф250

Top pipe schematic diagram