Home ProductsDTH Drill Bits

Forging 140mm QL50 DTH Drill Bits Ore Mining Hole Drill Bit For Mining

Forging 140mm QL50 DTH Drill Bits Ore Mining Hole Drill Bit For Mining

    • Forging 140mm QL50 DTH Drill Bits Ore Mining Hole Drill Bit For Mining
    • Forging 140mm QL50 DTH Drill Bits Ore Mining Hole Drill Bit For Mining
  • Forging 140mm QL50 DTH Drill Bits Ore Mining Hole Drill Bit For Mining

    Product Details:

    Place of Origin: China
    Brand Name: MIROC
    Certification: SGS certified, ISO
    Model Number: DTH Bits

    Payment & Shipping Terms:

    Minimum Order Quantity: negotiation
    Price: negotiation
    Packaging Details: wooden box
    Delivery Time: 15-20days
    Payment Terms: T/T, L/C, D/A, D/P, Western Union
    Supply Ability: 20000pcs per month
    Contact Now
    Detailed Product Description
    Product Name: 140mm QL50 DTH Drill Bits Diameter: 140mm
    Shank Type: QL50 Material: Carbide
    Processing Type: Forging Usage: Drifting Tunneling Bench Drilling

    140mm QL50 DTH hammer Drill bit ore mining hole drill bit for mining


    DTH Button Bits

    DTH drilling is a percussion system driving a piston inside hammer body with up and down motion by compressed air and transmitting an intensive percussion energy to the bit to enable the drilling by crushing the rock. Drilling method by DTH hammer exerts high drilling performance especially for drilling hard rock and contributes for shortening work schedule. Hence, this method is widely utilized for foundation work, landslide prevention work, quarrying services, marine civil work, etc. 


    KSQ makes and supplies the finest and most efficient Down-the-Hole (DTH) hammers and bits for the mining, construction and water well industries. Sansung DTH hammers transmit intensive impact energy with low energy loss. This results in good rock breakage, high penetration rates and high productivity. The equipment is designed to give optimal hole quality, reliability, and long service life, as well as the best blasting results and low total operation cost.


    ​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.





    • Underground mining

    • Down the hole rock drilling


    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



    QL50 High Air Pressure DTH Bit Specification:

    QL50 Spherical button/Concave face
    130 5 1/8 4×14,3×14 8×16 2 14 4148301331
    133 5 1/4 4×14,3×14 8×16 2 14 4148301332
    140 5 1/2 4×14,4×14 8×16 2 15 4148301333
    146 5 3/4 4×14,4×14 8×16 2 15.8 4148301334
    152 6 4×16,4×16 8×18 2 18 4148301335
    QL50 Ballistic button/Convex face
    130 4 3/8 3×14,4×14 9×16 3 14 4148301336
    133 4 1/2 3×14,4×14 9×16 3 14 4148301337
    140 4 3/4 3×16,4×16 9×16 3 15 4148301338
    146 5 3×16,4×16 9×16 3 15.8 4148301339
    152 5 1/8 3×16,5×16 9×18 3 18 4148301340
    QL50 Spherical button/Flat face
    130 4 3/8 7×14 8×16 2 14 4148301341
    133 4 1/2 7×14 8×16 2 14 4148301342
    140 4 3/4 7×14 7×18 2 15 4148301343
    140 5 8×14 9×16 3 15 4148301344
    146 5 1/8 8×14 9×16 3 15.8 4148301345
    152 5 1/4 8×16 9×18 3 18 4148301346


    Different face style makes DTH bits suitable for various rock conditions.

    Flat face: This is an universal design, especially for hard and abrasive rock formation. So typically, flat face with hemi-spherical buttons design is the most popular choice.


    Convex face: A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.


    Concave face: Medium hard to hard rock formations which is less abrasive and fractured. Especially for deep hole drilling, excellent control over hole deviation.


    DGR face: A special design for hard or very hard rock conditions, double gauge row buttons provide very excellent ware-resistance and very longer life time. It is usually used for some bigger diameter DTH bits.
    Besides, we are manufacturing the DTH bits with various shanks so they can be compatible with different DTH hammers.



    About US


    KSQ Technologies (Beijing) Co. Ltd. is a diversified enterprise based in Beijing, China, offering a portfolio of products that help contribute to a better bottom line and increase workplace safety for the construction and mining industries.


    KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capital expansion, as well as to firms who require support with consumable products, maintenance, and repair operations. Our operations are based on the unique expertise of our people and knowledge with customer processes.


    MIROC® Rock Drilling and Ground Support Tools include:

    Integral Rods
    Plug Hole Rods
    Tapered Drilling Tools
    Extension Drilling Tools
    Drifting and Tunneling Tools
    Reaming Tools
    Shank Rods
    Shank Adapters (Striking Bars)
    Down-the-hole (DTH) Bits
    Down-the-hole (DTH) Hammers


    Forging 140mm QL50 DTH Drill Bits Ore Mining Hole Drill Bit For Mining

    Contact Details
    KSQ Technologies (Beijing) Co. Ltd

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

    Tel: +8618210972182

    Send your inquiry directly to us (0 / 3000)

    Best Products
    Other Products