zuanlongbits@gmail.com

+86-029-82612068

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Email: zuanlongbits@gmail.com

Tel: +86-029-82612068

Fax: +86-029-82612068

Address:No 66, Changming Road, Xi'an, Shaanxi Province, China

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coal mine roof bolting bit

  • PDC Pillar Gear Drill Bit Size/Gear Drill Bit Factory

    Contact NowPDC Pillar Gear Drill Bit Size/Gear Drill Bit FactoryZuanlong PDC Pillar Drill Bit has been wildly used to coring-drilling for geological exploratory of coal measure stratum. The normal type is suitable for the f<=10, the reinforced type is suitable for f<=16. Note: Customization are availableRead More

  • PDC 2 Wings Full Tips Bit,dust Hog Coal Mining Roof Bit Manufacturer

    Contact NowPDC 2 Wings Full Tips Bit,dust Hog Coal Mining Roof Bit ManufacturerGeneral Introduction PDC coal mining roof bit are mainly used to drill the roof and side supporting hole, the gas drainage, water infusion, geological exploration hole and grouting hole and so on for the coal mine seam, water conservancy and hydro-power, dam and roadway construction of bolt-mesh...Read More

  • Factory Direct Rock Drilling Bit PDC Hole Reamer/ PDC Reamer Drill Bit Seller

    Contact NowFactory Direct Rock Drilling Bit PDC Hole Reamer/ PDC Reamer Drill Bit SellerZuanLong PDC hole opener was originally developed for coal mining and it has been proved to be exceptionally cost effective for geotechnical drilling. PDC core bits have extremely fast penetration rates and a very long working life. The cutters are extremely tough and can core formations such as hard...Read More

  • PDC Concave Drilling Bit/ PDC Cutter Bit For Hard Formation Oil Drilling

    Contact NowPDC Concave Drilling Bit/ PDC Cutter Bit For Hard Formation Oil DrillingZLONG Company professionally produces PDC drill bits,diamond drill bit,drill pipes and also R&D new products as per customers'request.All the products under control of ISO9001:2000 quality system and passed the inspection of Beijing Rock-drilling Machine Inspect Center and some of them obtained National patent.After several years' develop,ZLONG products have been widely used in cola mine field,petroleum field,and geological exploration field.We sincerely welcome our friend both home and abroad to come for business talks.Read More

  • Drilling Pdc Drag Bit/Step Drilling Bit From ZuanLong

    Contact NowDrilling Pdc Drag Bit/Step Drilling Bit From ZuanLongZuanlong supplies a variety of drag bits for many types of projects drilling needs, including 3 wings type bits for soft and medium formations, 4 wings, especially 4 wings chevron type for harder formations. Each of our bits is machined from a forging to exacting standards and then tipped with tungsten carbide. Mining grade tungsten carbide tips are brazed to the bits wing face for heavy duty bits. Then pin threads are CNC manufactured and wings surfaced hardening subsequently.Read More

  • Matrix Body Non Coring Drilling Pillar Head Bit Non Coring Bit

    Contact NowMatrix Body Non Coring Drilling Pillar Head Bit Non Coring BitZuanlong PDC Pillar Drill Bit has been wildly used to coring-drilling for geological exploratory of coal measure stratum. The normal type is suitable for the f<=10, the reinforced type is suitable for f<=16. Note: Customization are availableRead More

  • Factory Direct Coal Mining Cutting Machine Tool Best Price

    Contact NowFactory Direct Coal Mining Cutting Machine Tool Best Price1). Our prodcut has been approved by ISO9001:2000; 2). Our company has been awarded various certificates and honors by goverment, such as observe contact and keep promise enterprise, reliable quality enterprise, civilized unit, high and new tech enterprises, advanced qualtiy management enterprise,etc. ; 3). Specific researching and developing laboratory; 4). More than 15 years manufacturing experience;Read More

  • China PDC Roof Bolt 25-42mm Coal Mine Drill Bit Manufacturer

    Contact NowChina PDC Roof Bolt 25-42mm Coal Mine Drill Bit Manufacturer1. The wings are higher wear resistance and impact toughness. 2. To repeat repair and grind are not necessary. 3. Long life drill. 4. Drilling efficiency could be promoted sharply in penetration of high –medium hard rock formation and labor intensity could be reduced.Read More

  • PDC Four Wings Drag Bit, Scarp Drill Bits Supplier

    Contact NowPDC Four Wings Drag Bit, Scarp Drill Bits SupplierDrag bits are the perfect solutions for soil, sand, sticky clay, and grouting drilling. And Customization are available.Read More

  • Best Price Core Bit Set Core Drill Bit For Sale

    Contact NowBest Price Core Bit Set Core Drill Bit For Sale1). Our prodcut has been approved by ISO9001; 2). Our company has been awarded various certificates and honors by goverment, such as observe contact and keep promise enterprise, reliable quality enterprise, civilized unit, high and new tech enterprises, advanced qualtiy management enterprise,ect. ; 3). Specific researching and developing laboratory; 4). More than 15 years manufacturing experience;Read More