Drilling Rig

The hydraulic system of the drilling rig consists of a main and an auxiliary hydraulic system. The main hydraulic system is for providing hydraulic driving force for mechanisms like left and right travelling, power unit, main hoisting, auxiliary hoisting and swing while the auxiliary hydraulic system provides hydraulic driving force for mechanisms like luffing cylinder, left and right mast cylinder, pressurize cylinder, widening cylinder, folding cylinder etc.

Hengli provides a whole package of the hydraulic components like main pump, main valve, auxiliary valve, balance valve, cylinder and related pilot control components for the drilling rig application.

For small size drilling rig, saying capacity below 15Tm, Hengli provides a loading sensing main hydraulic system solution consisting of HP3V140 series pump or V90N130 series pump and the HVSM 25 series post-valve compensation load sensing control valve. The corresponding auxiliary hydraulic system consists of HP5V45 series pump, HVSP15 pre-valve compensation load sensing control valve, hydraulic cylinder and balance valves.

For drilling rig with capacity higher than 15Tm, a positive or negative flow control main hydraulic system consisting of a main pump of V90N130 series or HP3V212D series and a monoblock design control valve of HVME 270 series or HVME400 series is provided. The corresponding auxiliary hydraulic system consists of HP5V45 or HP5V76 series pump, HVSP15 pre-valve compensation load sensing control valve, hydraulic cylinder and balance valves.

 

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6Tm~48Tm drilling rig

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