Hydraulic Drilling Rigs

Rotary drilling rig is a construction machine suitable for forming holes in building foundation engineering. It is mainly suitable for soil layer construction such as sand, cohesive soil and silty soil. It is widely used in various foundation construction such as cast-in-place pile, continuous wall and foundation reinforcement. The rated power of rotary drilling rig is generally 125-450kW. The output torque is 120-400kN·m, the maximum hole diameter can reach 1.5~4m, and the maximum hole depth is 60-90m, which can meet the requirements of various large-scale foundation construction.

Hydraulic rotary drilling rig generally adopts hydraulic crawler-type telescopic chassis, self-lifting foldable mast, telescopic drill pipe, automatic verticality detection and adjustment, digital hole depth display, etc. The operation of the whole rig generally adopts hydraulic pilot control and load sensing, which has the characteristics of easy operation and comfort. The main and auxiliary hoists can be applied to various situations in the construction site. This kind of drilling rig, with different drilling tools, is suitable for dry (short spiral) or wet (rotary bucket) and rock (core drill) drilling operations. It can also be equipped with long spiral drill, underground diaphragm wall grab, vibration pile hammer and so on. It can achieve a variety of functions, mainly for municipal construction, highway bridges, industrial and civil buildings, diaphragm wall, water conservancy, anti-seepage slope protection and other foundation construction.

Highlights
It introduces the back-inclination large triangle structure with stationary luffing support, which is suitable for working conditions of low-tonnage drilling rig, improving the rigidity of working mechanism and enhancing the stability of whole drilling rig while achieving easy transportation;

Equipped with Isuzu engine with high-efficiency hydraulic transmission system.

The compact machine has a large-torque power head and boasts high speed. This ensures high construction efficiency.

Hydraulic system has been developed in joint efforts with a world first-class element manufacture to improve the hydraulic energy conversion rate of the element and reduce the transmission loss of pipelines of the system.

The box type square shaft casing structure is used for the mast deflection seat. The force of mast is directly transferred onto the trolley traveling mechanism, thus eliminating the stress of rotary frilling force on weak links of the deflection seat and improving the structure stability and reliability.

The high strength anti-deform design is used for the drilling system. The rectangular mast section is even wider on the guide rail direction. This can effectively reduce the structural stress of the mast and make it more suitable for the in-rock construction conditions with high-strength variable and constant load.