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          HGD-300A Drilling Rig


          HGD-300A sea engineering geological exploration drilling rig is a top drive power head type drilling machine with long feeding stroke. It adopts the advanced technique of regulating rotary speed with frequency changer and equipped with 12 m high derrick and heave compensator. It can be used to work under the condition of 100 m water depth and wind scale less than 5 grade. It also used for water area geological exploration drilling and pile hole drilling on river or lake. The main set of drill can be used for drilling pile holes in land.


          Top drive power head of drill adopted frequency changer to adjust rotary speed steplessly. It features long feeding stroke,compact structure, rational arrangement and wide regulating speed range. With the result that drilling rig can meet the demand of drilling in a great variety of complicated formation
          Safety and reliable falling-resistant apparatus of top drive power head can ensure equipment and personal safety.
          Feed micro-adjusting mechanism of drilling rig can accomplish balanced drilling holes.
          Mechanization of breaking out drill rods with hydraulic break out apparatus reduces labor strength and increase drilling efficiency.
          Removing top drive power head rearward integrally ensures large floor space and convenient for frequently hoisting and lowering the drilling rod.
          Equipped with the advanced bottom sampling device, it can meet sampling demand in complicated formation.

          Main Technical Specifications

          drilling depth 350-60m
          Drilling diameter ¢ 110- ¢ 600mm
          drill diameter ¢ 50- ¢ 127mm
          Power head speed low speed (positive and negative) 7-233r / min high speed (positive and negative) 16-540r / min
          power head to make way 3500mm
          Power head motor power 30kw
          main hoist Single rope lifting capacity of 30kN
          pay hoist Single rope lifting capacity 20Kn
          drill tower height 12m
          rigs load 180kN
          mud circulating mud circulating pump BW-250 BW-600
          Hydraulic Screw hole diameter pipe mill ¢ 450mm
          breakout drill pipe or casing diameter ¢ 50, ¢ 127, ¢ 178mm, shackle torque 2.2kN.m
          host installation outline dimensions L × W × H 2800 × 1500 × 5800mm
          Rig weight 6500kg

          Next:HGD-200 Drilling Rig
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