Home / Rock Drill Parts / 64 Bar R25 Drill Rod 3660mm

64 Bar R25 Drill Rod 3660mm

Engineered for Extreme Conditions: 64 Bar Pressure-Rated R25 Drill Rod, 3660mm

High-strength R25 drill rod (3660mm) rated for 64 bar operating pressure, precision-forged from ISO9001-certified alloy steel. Designed specifically for demanding hard rock drilling in tunnel boring, underground mining, and quarrying. Features a robust hexagonal body profile, optional T38 / R32 / R38 threaded connections, and friction-welded MF heads with internal threading to prevent thread damage and maximize service life.

Each rod undergoes advanced heat treatment and strict dimensional control per industry tolerances — ensuring optimal energy transfer, wear resistance, and reliable coupling integrity under high-torque, high-impact conditions.

Key Advantages

  • 64 bar pressure rating for high-intensity rock drilling applications
  • Hexagonal body design enhances torque transmission and reduces slippage
  • Friction-welded MF heads with protected internal threads extend service life
  • Forged from ISO9001-certified alloy steel with proprietary heat treatment
  • Multiple thread options: R25, R32, R38, T38, T45, T51, GT60
  • Precision-machined to tight tolerances for seamless coupling and reliability

Applications

  • Tunnel boring machine (TBM) extension and face drilling
  • Underground hard rock mining (stoping, development, raise boring)
  • Quarrying and open-pit blast hole drilling
  • Foundation and geotechnical drilling in abrasive formations
  • Drill-and-blast operations requiring high-pressure air delivery
  • Custom drilling tool assemblies for OEM equipment integration

Technical Specifications

Pressure Rating64 bar
Length3660 mm
Body TypeHexagonal
MaterialISO9001-certified alloy steel
Thread OptionsR25, R32, R38, T38, T45, T51, GT60
Weight (R25 3660mm)21.30 kg
Manufacturing ProcessCNC machining + friction welding + advanced heat treatment
CertificationISO 9001

FAQ

Is this R25 drill rod compatible with Atlas Copco and Sandvik rock drills?
Yes — the R25 thread standard complies with ISO 7241-1 and is fully compatible with major OEMs including Atlas Copco (Boomer, Simba), Sandvik (ROC, DR), and Epiroc systems.
What is the lead time for custom thread configurations or non-standard lengths?
Standard R25 3660mm rods ship in 20 workdays. Custom threads (e.g., T38–R25 adapters) or lengths outside 600–6400mm require +5–10 days — confirmed upon order.
How does the friction-welded MF head improve durability vs. conventional threading?
Friction welding creates a metallurgical bond stronger than the base material, eliminating weak points from cut threads. Combined with hardened internal threads, it prevents galling and extends service life by 30–50% in hard-rock conditions.
Do you provide test reports or material certificates?
Yes — every batch includes mill test reports (MTRs), hardness verification (HRC 38–42), tensile strength data (≥1200 MPa), and ISO 9001 traceability documentation.

Detailed Description

MOQ:1PCS
Price:Price negotiations
Standard Packaging:wooden box package
Delivery Period:20 workday
Payment Method:T/T
Supply Capacity:1+PCS+20 workday

China high quality T38 Rock Drilling Tools rock drill rod for hard drilling

 

1 product feature of Rock Drilling Tools

 

High-quality steel:

Our high quality structural steel drill pipe, through a special heat treatment process to meet the requirements of excavation of hard rock, longer life.

 

Advanced manufacturing technology surface treatment:

A threaded rod advanced manufacturing technology and advanced surface treatment technologies, manufactured according to close tolerances. They have close connections, energy transfer effect, wear resistance, easy accessibility and so on.

 

Strict quality control:

All drill pipe have been strictly controlled to ensure that they have satisfactory quality.

 

MF and 64 bar using drill made of the same steel, by CNC machine tools and production of advanced heat treatment process. Further, in order to ensure a long service life of the drill MF, we use a friction welding head and connected to an internal thread, the internal thread can be ensured easily damaged.

 

We can provide different lengths, various thread drill, as shown below full range.

Thread Size: R25, R32, R38, T38, T45, T51 GT60 like.

 

 

HZJX mainly for the production of mining, shrink, tunnel boring, drilling tools quarrying and related industries. We can designed and manufactured according to customer requirements.

 

2 Model is introduced of Rock Drilling Tools

Quality drill
Standard: ISO9001


Material: high quality alloy steel, with 64bar
Body type: Hexagonal
Threaded connection: R25, R32, R38, T38, T45, T51 and so on.
Length: 600 mm - 6400 mm
Delivery time: 7-15 days


Material: high quality alloy steel, with 64bar
Body type: round
Threaded connection: R25, R32, R38, T38, T45, T51, GT60 like.
Length: 600 mm - 6400 mm
Delivery time: 7-15 days 

 

 

   Drill rod models LengthWeight*kg
Extension rod, R32-Round32-R32915mm5.50
1220mm7.32
1525mm9.18
1830mm10.95
2435mm14.20
3050mm17.80
3660mm21.30
MF rod, R32-Round32-R32915mm5.50
1220mm7.32
1525mm9.18
1830mm10.95
3050mm17.90
3660mm21.45
4270mm25.10
Extension rod, T38-Round39-T38  1220mm 9.20
 1525mm10.25
 1830mm 15.30
3050mm25.50
3660mm30.60
4270mm35.40
MF rod, T38-Round39-T38 1220mm9.50
 1525mm 11.25
 1830mm 16.30
3050mm26.50
3660mm31.60
4270mm36.40
MF rod, T45-Round46-T45   1525mm 18.50
 1830mm 22.20
3050mm36.40
3660mm43.70
4270mm36.40
Extension rod, T45-Round46-T45  3050mm35.80
3660mm43.00
4270mm50.10
MF rod, T51-Round52-T51 1525mm 17.85
 1830mm 28.10
3660mm55.70
4270mm64.80
Extension rod, T51-Round52-T513660mm54.20
4270mm63.50

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