High-performance Mining 8 1/2 Inch IADC 535 Rock Roller Tricone Drill Bit Three Cone Roller Bit for Hard Formation

Product Description

⚒️ Product Description

Mining tricone bits are one of the main tools for rock drilling and well drilling, and it is usually powered by electric, diesel or hydraulic functions. The length of its life and whether its performance is suitable for the drill formation have a significant impact on the quality, speed and cost of the drilling project.

The mining tricone bit mainly suitable for large-scale open-pit mining, such as: open-pit coal mine, iron ore, copper, molybdenum ore and other non-ferrous metal mines, non-metallic mining operations, and the characteristic is high drilling efficiency and low cost.

📏 Available Sizes:
6 1/4(159mm), 6 3/4(171mm), 7 7/8(200mm), 8 1/2(216mm), 9(229mm), 9 7/8(251mm), 10 5/8(270mm), 11(279mm), 12 1/4(311mm), 13 3/4(349mm), etc.
Bearing Structure
  • Open Bearing: Main roller--ball bearing--minor roller--thrust block, open bearing structure without seal ring.
  • Sealed Bearing: O-Ring Seal--main roller--ball bearing--minor roller--thrust block, sealed bearing.
  • Composite Sealed Bearing: Composite seal ring--main roller--ball bearing--minor roller--thrust block, sealed bearing.
📸 Detailed Images
📊 Drilling Parameter Selection Chart
IADC WOB(lb/in) RPM(r/min) Cutting Structure Applications
412 415 1000-2000 90-120 Conical on gauge and inner rows Designed for very soft formations with low compressive strength and high friability such as shale, soft limestone, sandstone, gravel clay, soft dolomite coal.
432 435 1000-4000 90-120 Conical/Chisal on gauge, Conical inner rows Designed for very soft formations with low compressive strength and high friability such as shale, soft limestone sandstone, gravel clay, soft dolomite coal.
532 535 2000-5000 80-110 Conical/Chisal on gauge, Conical inner rows Designed for very soft formations with low compressive strength, such as shale, soft limestone, interbedded dolomite, coal.
612 615 3000-5000 60-100 Conical/Spherical on gague, Conical inner rows Designed for high compressive strength, medium hard and abrasive formations, such as limestone, sandstone, interbed-ded dolomite.
632 635 3000-6000 60-100 Conical/Spherical on gague, Conical inner rows Designed for high compressive strength, medium hard and abrasive formations, such as limestone, sandstone, interbed-ded dolomite.
732 735 4000-7000 60-90 Spherical on gague, Conical/Double spherical on inner rows Designed for high compressive strength, hard and abrasive formations, such as granite limestone, sandstone, dolomite.
832 835 5000-8000 50-80 Spherical on gague, Double spherical on inner rows Designed for high compressive strength, hard and abrasive formations, such as magnetite quartize, granite.
📜 Certificate
🏢 About Us

Founded in June 2010, we are an international manufacturing service provider integrating R&D, manufacturing, sales and service, specializing in mining tools and comprehensive mining services. Relying on years of accumulation of military technology, we have formed a unique core technology competitiveness in the field of mining tools and pile foundation drilling tools.

Our company uses the advantages of system integration services of mining products to serve the fields of mining infrastructure construction and mining exploration services. Main products include mining three-cone drill bits, rotary bits, rotary drill cones, rotary cutting teeth, drill rods, drill tools, etc.

🤝 Exhibition
📦 Packing & Shipping
❓ FAQ
What's the nature of your company, manufacturer or trading company?
We are Manufacturer. All products are produced by ourselves, so we have competitive prices while ensuring product quality.
How do you ship the products?
Our goods can be transported by air and sea depending on the urgency and weight of the order.
Does this product support customization?
Yes, due to the fact that we have our own factories, we can customize the product according to customer's specific technical requirements.
How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is according to quantity.
Do you provide samples for testing?
Yes, we can provide samples for quality evaluation and field testing to ensure they meet your drilling requirements.
What quality standards do your products follow?
Our tricone bits are manufactured according to strict industrial standards and undergo rigorous quality control before shipping.

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