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Rc Series Reverse Circulation Dth Drill Bits For Deep Exploration Drilling

Rc Series Reverse Circulation Dth Drill Bits For Deep Exploration Drilling

    • Rc Series Reverse Circulation Dth Drill Bits For Deep Exploration Drilling
    • Rc Series Reverse Circulation Dth Drill Bits For Deep Exploration Drilling
    • Rc Series Reverse Circulation Dth Drill Bits For Deep Exploration Drilling
    • Rc Series Reverse Circulation Dth Drill Bits For Deep Exploration Drilling
  • Rc Series Reverse Circulation Dth Drill Bits For Deep Exploration Drilling

    Product Details:

    Place of Origin: China
    Brand Name: MIROC down the hole hammer drill tool
    Certification: SGS certified, ISO
    Model Number: DTH Button Bit

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 Pieces DTH Button Drill Bit
    Price: Negotiation
    Packaging Details: Carton Box or Wooden Box
    Delivery Time: 25 days
    Supply Ability: 20000 pieces per month
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    Detailed Product Description
    Application: Water Well Drilling, Quarry Drilling, Construction Rock Drilling Hammer Type: RE345
    Bit Diameter: 133mm 140mm 146mm 152mm 165mm Name: DTH Button Bit
    Drill Method: DTH (Down The Hole) Drilling Button Dia: 10x14mm,9x16mm

    RC series reverse circulation DTH Hammer and Bit
    RC series reverse circulation DTH Hammer is the latest developed product of our company. It is mainly used for deep exploration drilling and ore grade control.

    It has the following characteristics:
    1. Based on previous experience of ordinary hammers, combined with the features of recerse circulation hammer, optimized internal structure and ideal energy transfer, thus ensuring the series of hammers deilling with fast smooth and continuous sampling.
    2. The internal structure is very simple with components of high rigidity, thus ensuring long life and easy maintenance of the hammer.
    3. The collection tube adopts an intergrative design and can be replaced without disassembling the hammer. With carburizing treatment, it has good abrasive resistance.
    4. Equipped with bits designed with patent. Simply by replacing the drill bit, the same hammer can drill holes of different sizes ensuring that the sample is not contaminated.
    5. In difficult condition such as loose soil, hard rock and plenty of water exists, sampling can be done well.

     

    Working principle
    1. With the piston resting on the percussion bit and the hammer closed up in the drilling position, high pressure air is directed into the bottom chamber of the Hammer and the piston lifts. This commences the piston cycle.

    2. As the piston travels upwards it forms the top chamber by forming a seal with the inner tube and the ID the piston. Further movement seals the port that feeds the bottom chamber and also simultaneously releases the seal on the bottom chamber allowing the air to expand and exhaust down the splines of the percussion bit. At the same time the Top chamber port is opened which feeds the high pressure air into the previously formed top chamber thus increasing the pressure above the piston and forcing it back down.

    3.During the down cycle or power stroke the piston reseals the bottom chamber on the piston bearing bush thus stopping the exhaust air and creating a chamber of high pressure air below the piston which forces the piston back up the hammer.

    4. Lifting the hammer of the bottom of the hole allows the percussion bit to slide down the drive sub also allowing the piston to slide down the hammer and rest on the piston bearing bush. The piston strike face and the strike face of the percussion bit can now not come into contact thus allowing the free flow of high pressure air directly through the hammer without the hammer cycling.

     

    DTH Hammer Type HRC45 HRC55 HRC65 HRC52 RC542 RC543 RC545 RC547
    Length (less bit) mm 1020 1111 1250 1208 1191 1191 1261 1270
    Weight (excluding bit) kg 94 66.5 110 70 57 62 65 71
    External diameter mm 99 126 146 126 109.5 116 117.5 124.5
    Bit shank   HRC45 HRC55 HRC65 PR52 RE542 RE542 RE545 RE547
    Hole range mm 114-127 133-152 155-190 133-146 113-130 120-135 122-135 130-146
    Connection thread   upon the thread of the drill tube 3.5"-4" remet
    4" metzke
    4"-4.5" remet
    4"-4.5" metzke
    4.5" remet
    4.5" metzke
    working pressure Mpa 1.0-3.0 1.5-3.5 1.5-3.5 1.5-3.5 1.5-3.5 1.5-3.5 1.5-3.5 1.5-3.5
    Impact rate at 1.7 Mpa HZ 30 35 28 35 35 35 35 35
    Recommended Rotation Speed r/min 25-40 25-40 25-40 25-40 25-40 25-40 25-40 25-40
    Air consumption (m3/min 1.0 Mpa 8 16 20 16 12 12 16 16
    1.8Mpa 12 22 26 22 18 18 22 22
    2.4Mpa 16 28 35 28 26 26 28 28

     

    Rc Series Reverse Circulation Dth Drill Bits For Deep Exploration Drilling

     

    Contact Details
    KSQ Technologies (Beijing) Co. Ltd

    Contact Person: katy.zhang@ksq-tech.com

    Send your inquiry directly to us (0 / 3000)

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