HFGA-47 DTH Hydraulic Surface Rig

HFGA-47 DTH Hydraulic Surface Rig

  • Max. Hole Depth: 30m
  • Hole Range: 138-203mm
  • Rated Power: 294 kW

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Perfect combinations of low cost and high production 
Recommended hole size range: 138 – 203 mm

Simplicity in design,direct visual control system,more reliable and more convenient for service and repair.
Higher production capabilities with 6 m drill pipe and larger hole range.
Higher efficiency and energy more savings.

Product Features

1.Feed beam
Cylinder and wire rope feed for precise feed control and precision drilling.
Suitable for various angle and horizontal bottom hole drilling.
Composite material and self lubricating bearings and maintenance free.
2.Rod ( pipe ) changer
Round table auto rod ( pipe ) changer for freestyle pipe selection to extend the work life of drill tools.
Patent designed floating hose reel for extended hose work life.
3.Dust Collection device
Two stage dry dust collection system with larger filtration area for auto continuous self cleaning dust collection.
Convenient removal of filter elements for high efficiency maintenance.
Movable dust hood for clear view of hole collaring to control collaring operation.
4.Power rotary head
Cycloid hydraulic dual motor rotary head with high torque for better reliability.
Heavy duty box type beam for better resistance to pulling, pressing, cutting, bending, and twisting force. Simple design for convenient maintenance and precision positioning.
6.Diesel Engine
Fuel saving device and auto preheating device for various tough work conditions.
Optional high altitude package. 
Screw dual stage high pressure compressor for excellent energy efficiency ratio and high air pressure drilling.
Track type heavy duty chassis, ±10° hydraulic oscillation on heavy duty track frame.
Powerful traction force and high ground clearance for strong off road capabilities.

Standard Equipment

YuChai Engine6MK400L-K20, Power 294 kw
Dual Stage Screw Compressor 22 m3 / min, 24 bar
Cooling System up to 50℃ climate
Cylinder wire rope feed system
Automatic Rod ( Pipe ) Handling System
Movable dust hood for convenient observation and accurate hole collaring
Dust pre-filters
Dry dust collector with auto continuous cleaning of filter elements
Hydraulic rotary head
Feed beam extension and compensation
Heavy duty feed beam
Bottom hole drilling device
Pipe thread lubrication device
Floating hydraulic hose reel
Safety Cab with all weather AC, rear view mirror and multi-angle adjustable seat,Noise level ≤ 80 dB
Dual speed hydraulic tramming motor
Heavy duty track frame with 3 tooth shoes ,oscillation track frame ±10°
Hydraulic drill pipe guiding device and drill pipe handling mechanical hands
Fuel saving device ( auto unloading at percussion idle time, engine auto speed adjustment )
Back up alarm
work lights
Emergency Auto shutdown
Engine and drilling parameter color display
Filtered manual hydraulic oil pump


Auto anti-jamming system
Water mist system for dust collection
Auto remote control system
High altitude package
Extreme cold package
Electric fuel filling pump

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