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254mm - 381mm DTH Drill Bits High Penetration DTH Hard Stone Drilling Bits

254mm - 381mm DTH Drill Bits High Penetration DTH Hard Stone Drilling Bits

    • 254mm - 381mm DTH Drill Bits High Penetration DTH Hard Stone Drilling Bits
    • 254mm - 381mm DTH Drill Bits High Penetration DTH Hard Stone Drilling Bits
  • 254mm - 381mm DTH Drill Bits High Penetration DTH Hard Stone Drilling Bits

    Product Details:

    Place of Origin: China
    Brand Name: MIROC DTH Rock Drilling Tools
    Certification: API
    Model Number: NUMA 100 Series DTH Button Bit

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 Pieces DTH Button Bit
    Packaging Details: Plywood Case
    Delivery Time: 20-25 days
    Payment Terms: L/C, T/T
    Supply Ability: 20000 pieces per month
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    Detailed Product Description
    Product Name: DTH Button Bit Series: Numa DTH Button Bit
    Type: NUMA100 Size: 254mm - 381mm
    Use: Tunneling, Mining,Quarrying,Water Well Color: Black

    New Design DTH Drill Bits For NUMA Series High Air Pressure DTH Hammer

     

    Our tools are widelyused in different drilling applications including mining,quarrying, water well drilling, geotechnical industries and etc.
    In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length.

    Competitive Advantage:
    • High grade tungsten carbide inserts
    • Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment

     

    We can design and manufacture the personalized products to meet your specical apllication, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes.

     

    Bit Face Shape Selection:

    Center Drop Face

    For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressure.

    Maximum hole deviation control.

    Concave Face

    The all-around application bit face specifically for medium hard and homogenerous rock formations.

    Good hole deviation control and good flushing capacity.

    Convex Face

    For high penetration rates in soft to medium-hard with low to medium air pressure. It is the most resistance to steel wash, any may reduce the load and wear on gauge buttons, but poor hole deviation control.

    Double Gauge Face

    This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressure and good resistance to steel wash step gauge bit.

    Flat Face Bit

    This kind of face shape is suitable for hard to very hard and abrasive rock formation is applications with high air pressure. Good penetration rates and resistance to steel wash.

     

    NUMA Series DTH Bit Specification:

    NUMA Series DTH Button Bit
    DTH Button Bit Diameter Buttons and Size (mm) Flushing hole Weight
    mm inch Front Gauge kg
    Numa100 254 10 21x16 12x18 2 90.0
    305 12 36x16 12x18 4 102.0
    311 12 1/4 36x16 12x18 4 104.0
    318 12 1/2 38x16 12x18 4 106.0
    330 13 42x16 14x18 4 112.0
    NUMA120 305 12 12x18 36x16 4 152.0
    311 12 1/4 12x18 36x16 4 158.0
    330 13 16x18 42x16 4 165.0
    346 13 5/8 16x19 48x16 4 178.0
    381 15 16x19 48x16 4 195.0
    NUMA125 305 12 12x18 36x16 4 170.0
    311 12 1/4 12x18 36x16 4 173.0
    330 13 16x18 42x16 4 182.0
    346 13 5/8 16x19 48x16 4 191.0
    381 15 16x19 48x16 4 200.0

     

    Pictures

    254mm - 381mm DTH Drill Bits High Penetration DTH Hard Stone Drilling Bits

     

    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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