2025 Reverse Circulation Drill Rod/RC Dual-Wall Drill Pipe

• Customization: Available
• Standard: RoHS, BS, DIN, JIS, AISI, API
• Length: 1.5-6m
• Model NO.: RC Drill Pipe
• Usage: Oil Mining, Coal Mining, Well Drilling, Ore Mining
• Material: High Strength Alloy Steel
• Transport Package: Standard Package
• Specification: 3-12m
• Trademark: BDM
• Origin: Linyi, Shandong

Product Description

 

Reverse Circulation Drilling Rods (RC Drilling Rods) are essential components designed for reverse circulation drilling systems. They are widely used in mineral exploration, water well drilling, geological surveys, and many other fields. Their primary function is to connect the drilling machine, drill bit, and other drilling tools, facilitating efficient air circulation and removing cuttings from the borehole. Compared to traditional rotary drilling methods, reverse circulation drilling allows for faster removal of cuttings and improves drilling efficiency, making it particularly suitable for deep hole drilling or hard rock drilling applications.

Product Features

1. High Strength and Durability:

   • RC drilling rods are made from high-strength alloy steel (e.g., AISI 4145H, AISI 4130), offering excellent tensile strength and wear resistance, ensuring stable performance under high-pressure and harsh drilling environments.
   • The rods are surface-hardened, chrome-plated, or nitrided to improve wear resistance, corrosion resistance, and fatigue strength, thereby extending service life and reducing maintenance costs.

2. Efficient Airflow System:

   • The RC rods are designed with optimal inner and outer diameters to ensure efficient airflow, which effectively removes cuttings from the borehole, reducing the risk of blockages and improving drilling speed.
   • Suitable for various pneumatic drilling systems, especially for deep hole drilling, where maintaining efficient airflow is crucial.

3. Superior Drilling Performance:

   • RC rods can withstand high working pressures, commonly up to 35 bar (500 psi), making them ideal for deep wells, hard rock, and complex drilling environments.
   • The design minimizes vibration, reducing drill rig fatigue and improving stability, ensuring higher drilling precision.

4. Compatibility with Various Drilling Machines and Bits:

   • The rods support multiple connection types, such as API 2 7/8" NC, API 3 1/2" NC, RC threads, Q threads, S threads, and others, ensuring compatibility with different drilling machines and bits.
   • Whether for mineral exploration, environmental testing, or water well drilling, RC drilling rods provide reliable solutions for a wide range of drilling applications.

5. Customizable Options:

   • RC rods can be customized in terms of outer diameter, inner diameter, length, and connection type to meet specific drilling needs. This ensures optimal performance for different depths, geological conditions, and drilling equipment.

6. Cost-Effective:

   • While the initial investment in RC rods may be higher, their durability, reduced maintenance costs, and increased drilling efficiency provide higher long-term returns.
   • Their fast drilling speed and efficient cuttings removal system significantly reduce project timelines and operational costs.
   •  
   • Reverse Circulation Drilling Rods offer superior durability, advanced design, efficient airflow, and a wide range of customizable options, making them the ideal choice for mineral exploration, water well drilling, and deep hole drilling applications. They deliver exceptional performance in challenging drilling environments, enhance drilling efficiency, and reduce maintenance costs, providing a reliable solution for efficient drilling operations.

7. • Material

     High-strength alloy steel (e.g., AISI 4145H, AISI 4130)

     Hardness

     HB 170-250 (Brinell hardness)

     Outer Diameter (OD)

     3 ½" (89mm), 4 ½" (114mm), 5" (127mm), 5 ½" (140mm), 6" (152mm)

     Inner Diameter (ID)

     2 ½" (64mm), 3" (76mm), 3 ½" (89mm)

     Length

     3m (10 ft), 6m (20 ft), customizable

     Length Tolerance

     ±5mm

     Tensile Strength

     100,000 psi (690 MPa)

     Compressive Strength

     150,000 psi (1034 MPa)

     Thread Type

     API NC, RC, Q, S, T, V (varies by design)

     Thread Size

     API 2 7/8" NC, API 3 1/2" NC, customizable

     Weight per Rod

     50-70 kg (110-154 lbs), varies with size

     Surface Treatment

     Hardening, Chrome Plating, Nitriding for improved wear and corrosion resistance

     Working Pressure

     Up to 35 bar (500 psi), depending on system design

     Airflow Capacity

     High-efficiency airflow for rapid cuttings removal

     Corrosion Resistance

     High corrosion resistance, suitable for harsh environments

     Vibration Dampening

     Reduced vibration design for enhanced stability and drilling efficiency

     Applications

     Mineral exploration, water well drilling, geological surveys, deep hole drilling

     API Certification

     API Spec 5D or API Spec 7 (depending on model)

     ISO Certification

     ISO 9001 (Quality Management System Certification)

     

     Company Profile

      

  Shandong better drilling machinery Co..Ltd. is located in Linyi city Shandong province. our company main designing and manufacturing the drilling rigs which widely used in water well drilling,sampling, geological testing, mine ex- ploration, foundation drilling, geothermal drilling,etc.
  Shandong beter drilling machinery Co. Ltd has 19 years experience manufac- turing machinery rigs and machinery tools. Our products are sold to over 43 countries including Asia,Africa. European,South America.
  Our factory has been SO9001 quality system and national CE,TUV certification approved. We are dedicat in requirement,but also get their job done more easily, efficiently and economically. Considering the application condition in developing country especially for that remote area better drilling machin- ery warmly welcome customers and fiends from all over of the countries to visit my company and get more and long business cooperation.

FAQ

1. Are you a trading company or a manufacturer?
We are a professional manufacturer. Our factory mainly produces water well drilling rigs, core drilling rigs,air Compressor, down-the-hole drilling rigs, pile drivers, etc. The products have been exported to hundreds of countries around the world and enjoy a high reputation all over the world.

2:Where is our factory?
Our factory is located in Linyi City,Shandong Province, China.

 

3: Do you have after-sales service?
Yes.We provide 18 months free warranty and free technical support for the whole life of any machine. During warranty period, if parts still broken, we can send the new ones freely.

4.How is the quality of your machine?
Our products pass strict quality inspections before they leave the factory to ensure that they are qualified before they are shipped.

5. How to inspect the goods?
1) Support customers to come to the factory for on-site inspection.
2) Support customers to designate third-party companies to inspect goods.
3) Support video inspection.

6. How about quality assurance?
We provide a one-year quality guarantee for the main machine of the machine.

7. How long is your delivery cycle?
1) In the case of stock, we can deliver the machine within 7 days.
2) Under standard production, we can deliver the machine within 15-20 days.
3) In the case of customization, we can deliver the machine within 20-25 days.