Xi'an Heaven Abundant Mining Equipment CO.,LTD
When sourcing drilling equipment from China, one of the first questions international buyers ask is: what is the FOB price for a 4 blades PDC bit? Understanding FOB (Free on Board) pricing is essential for budgeting your drilling projects, whether you are working on water well drilling, mining exploration, or geological surveys. In this article, we break down the key factors that determine the FOB price of a 4 blades PDC bit, typical price ranges you can expect, and how to get the best deal from a reliable Chinese manufacturer.
FOB, or Free on Board, is an Incoterm that defines the point at which the seller's responsibility ends and the buyer's begins. Under FOB terms, the seller covers all costs up to loading the goods onto the vessel at the port of origin — typically a Chinese port like Shanghai, Tianjin, or Qingdao. Once the goods are on board, the buyer assumes responsibility for freight, insurance, customs clearance, and inland transportation at the destination. For a 4 blades PDC bit purchase, the FOB price includes the bit's manufacturing cost, packaging (usually in steel boxes or wooden crates), domestic transportation to the port, and export documentation fees. This makes FOB pricing a transparent benchmark for comparing offers across different suppliers.
The FOB price of a 4 blades PDC bit is not a fixed number — it varies based on several technical and commercial factors. Understanding these variables helps you evaluate whether a quoted price is reasonable.
The diameter of the bit is one of the most direct cost drivers. A smaller 3-inch (75mm) 4 blades PDC bit costs significantly less than a 200mm or 8-1/2 inch model, simply because less raw material and fewer PDC cutters are required. For example, a 65mm steel body 4 blades PDC bit for shallow water well drilling sits at the lower end of the price spectrum, while a 178mm or 200mm bit for deep well applications commands a higher price.
Steel body PDC bits are generally more affordable than matrix body bits. Steel is easier to machine and repair, making it a cost-effective choice for soft to medium formations like clay, shale, and soft sandstone. Matrix body PDC bits, on the other hand, are made from a tungsten carbide composite that is highly resistant to abrasion. They are preferred for hard, abrasive formations and typically cost more due to the complex sintering process and longer service life they provide.
The PDC cutters mounted on the blades are the actual cutting elements. Higher-quality cutters with larger diamond tables and better thermal stability cost more but deliver longer bit life and faster penetration rates. A 4 blades design typically uses 4 to 8 cutters per blade, and the total cutter count directly affects the bit price. Premium-grade PDC cutters (such as 1308 or 1313 sizes) add to the unit cost but often justify the premium through improved performance.
The thread connection on the bit must match the drill string. Common thread types include API regular (REG) connections, NC (numbered connection) threads, and metric threads. Bits with API-standard connections may have slightly different pricing than those with custom or non-standard threads. The 4 blades PDC bits from TY Drill Bits are available with various connection types, including 2-3/8" API REG, 2-7/8" API REG, and female pin connections to suit different rig setups.
Like most industrial products, the unit price drops as order volume increases. A single-piece sample order carries the highest per-unit price, while bulk orders of 20, 50, or more pieces unlock significant discounts. For companies running multiple drilling rigs or managing ongoing projects, pdc drill bit wholesale ordering is a practical way to reduce the per-bit FOB cost by 10% to 20% or more, depending on the total volume.
While exact pricing depends on the factors above, here is a general reference for FOB prices from Chinese manufacturers:
| Bit Size | Body Type | Estimated FOB Price (USD/Piece) |
|---|---|---|
| 65mm - 94mm (2.5" - 3.7") | Steel Body | $100 - $350 |
| 113mm - 133mm (4.5" - 5.2") | Steel Body | $200 - $500 |
| 152mm - 178mm (6" - 7") | Steel Body | $350 - $800 |
| 190mm - 200mm (7.5" - 8") | Steel Body | $500 - $1,200 |
| 75mm - 133mm (3" - 5.2") | Matrix Body | $300 - $800 |
| 152mm - 200mm (6" - 8") | Matrix Body | $600 - $1,500 |
These price ranges are based on typical single-piece or small-quantity orders. Larger volume orders can reduce the per-piece cost significantly. It is also worth noting that payment terms — such as T/T, L/C, or PayPal — and the chosen Incoterm (FOB, CIF, CFR) can influence the final landed cost. For the most accurate and up-to-date FOB pricing, contacting the manufacturer directly with your specific bit size, body material, and quantity requirements is always recommended.
When requesting a quote, provide the manufacturer with detailed specifications: bit diameter, body material preference (steel or matrix), thread connection type, formation type you will be drilling, and your target quantity. The more precise your inquiry, the more accurate the FOB price quote you will receive.
If your project requires multiple 4 blades PDC bits, consolidating your order into a single larger shipment reduces the per-unit FOB price. Many Chinese manufacturers, including TY Drill Bits, offer tiered pricing that rewards larger quantities. Even mixing different bit sizes and types within the same order can help you reach a volume discount threshold.
Do not overpay for a matrix body PDC bit if your application only involves soft clay or shale drilling. A steel body 4 blades PDC bit will perform well in these conditions at a lower FOB price. Conversely, if you are drilling through hard sandstone, granite, or mixed formations, investing in a matrix body bit can save money in the long run by reducing bit changes and downtime.
Cutting out intermediaries typically results in a better FOB price. TY Drill Bits (Xi'an Heaven Abundant Mining Equipment CO., LTD) is a direct manufacturer of PDC drill bits with over a decade of experience. Working directly with the factory means you get manufacturer-direct pricing without the markup added by trading companies or distributors.
TY Drill Bits, established in 2010 and based in Xi'an, China, specializes in the development, production, and sales of a wide range of drilling tools — including 4 blades PDC bits, 3 blades PDC bits, tricone bits, core bits, and rock drilling tools. The company holds ISO9001 certification and exports over 90% of its products to international markets.
Key advantages of sourcing your 4 blades PDC bits from TY Drill Bits include:
The FOB price for a 4 blades PDC bit depends on bit size, body material, cutter quality, thread type, and order quantity. Typically, you can expect FOB prices ranging from $100 to $1,500 per piece, with steel body bits in smaller diameters being the most economical and large-diameter matrix body bits at the higher end. For the most competitive FOB pricing, work directly with an experienced manufacturer like TY Drill Bits, provide clear specifications, and consider bulk ordering to maximize your cost savings. To request a detailed FOB price quote for your specific 4 blades PDC bit requirements, contact the TY Drill Bits sales team today.
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