The BR Series Low Air Pressure DTH Hammer is a lightweight and cost-effective down-the-hole drilling tool designed for small diameter boreholes and low air consumption drilling applications. It is widely used in small water well drilling, geological exploration, mountain anchoring, and construction engineering projects.
The BR series is specially developed for low-pressure air systems, requiring only 0.8–1.7 MPa working pressure, making it suitable for small portable air compressors and lightweight drilling rigs. Its compact structure ensures easy handling, fast assembly, and high adaptability in narrow or complex working environments.
This series includes BR1, BR2, and BR3 models, covering a drilling range from 64 mm to 115 mm. Each model is designed with optimized internal air distribution to ensure stable impact energy output and efficient rock penetration under low air consumption conditions.
Manufactured with high-strength alloy steel and precision machining, the BR Series delivers reliable durability and stable performance even in continuous drilling operations. Its simple internal structure reduces maintenance cost and ensures long service life, making it an ideal choice for contractors seeking economical drilling solutions.
The BR Series is fully compatible with RD40, RD50, and API 2 3/8" REG connection systems depending on model selection, allowing flexible integration with different lightweight drilling rigs.
To start cooperation: send your inquiry → get a tailored technical solution & quotation → confirm order → production & testing → fast shipment → long-term spare parts & technical support. We respond quickly and support you throughout the whole project.
Not sure which DTH hammer series fits your job?Tell us your required hole diameter and depth, our engineers will recommend the best-matched hammer series and model for your rig and formation.
BR1 Parts List |
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| Ref. | Parts | Weight | Part No. |
| 1 | Top Sub | 1.92 Kg | 03-BR1-01 |
| 2 | "O" Ring | 0.01 Kg | 03-BR1-02 |
| 3 | Check Valve | 0.08 Kg | 03-BR1-03 |
| 4 | Spring | 0.01 Kg | 03-BR1-04 |
| 5 | Valve Seat | 0.46 Kg | 03-BR1-05 |
| 6 | Inner Cylinder | 0.38 Kg | 03-BR1-06 |
| 7 | Piston | 1.16 Kg | 03-BR1-07 |
| 8 | Piston Case | 3.46 Kg | 03-BR1-08 |
| 9 | Guided Sleeve | 0.29 Kg | 03-BR1-09 |
| 10 | Check Ring | 0.1 Kg | 03-BR1-10 |
| 11 | Retainer Ring | 0.08 Kg | 03-BR1-11 |
| 12 | "O" Ring | 0.01 Kg | 03-BR1-12 |
| 13 | Drive Chuckk | 0.82 Kg | 03-BR1-13 |
| 14 | Drill Bit | — | 03-BR1-14 |
Technical Parameters |
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| Item | Parameter | ||
| Length (Less bit) | 698 mm | ||
| Weight | 8.8 Kg | ||
| Outer Diameter | 56 mm | ||
| Connection Thread | RD40 BOX | ||
| Bit Shank | BR1 | ||
| Hole Range | 64–76 mm | ||
| Working Pressure | 0.8–1.5 MPa | ||
| Recommended rotation speed | 30–50 r/min | ||
| Air Consumption (1.0 MPa) | 2 m³/min | ||
| Air Consumption (1.4 MPa) | 3 m³/min |
BR2 Parts List |
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| Ref. | Parts | Weight | Part No. |
| 1 | Top Sub | 2.5 Kg | 03-BR2-01 |
| 2 | "O" Ring | 0.01 Kg | 03-BR2-02 |
| 3 | Check Valve | 0.08 Kg | 03-BR2-03 |
| 4 | Spring | 0.05 Kg | 03-BR2-04 |
| 5 | Valve Seat | 0.5 Kg | 03-BR2-05 |
| 6 | Inner Cylinder | 0.6 Kg | 03-BR2-06 |
| 7 | Piston | 2.3 Kg | 03-BR2-07 |
| 8 | Piston Case | 4.5 Kg | 03-BR2-08 |
| 9 | Guided Sleeve | 0.52 Kg | 03-BR2-09 |
| 10 | Retainer Ring | 0.1 Kg | 03-BR2-10 |
| 11 | "O" Ring | 0.01 Kg | 03-BR2-11 |
| 12 | Drive Chuckk | 1.2 Kg | 03-BR2-12 |
| 13 | Drill Bit | — | 03-BR2-13 |
Technical Parameters |
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| Item | Parameter | ||
| Length (Less bit) | 810 mm | ||
| Weight | 12.5 Kg | ||
| Outer Diameter | 64 mm | ||
| Connection Thread | RD50 BOX | ||
| Bit Shank | BR2 | ||
| Hole Range | 70–90 mm | ||
| Work Pressure | 0.8–1.5 MPa | ||
| Recommended rotation speed | 30–50 r/min | ||
| Air Consumption (1.0 MPa) | 3 m³/min | ||
| Air Consumption (1.4 MPa) | 4.5 m³/min |
BR3 Parts List |
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| Ref. | Parts | Weight | Part No. |
| 1 | Top Sub | 4.4 Kg | 01-BR3-01 |
| 2 | "O" Ring | 0.01 Kg | 01-BR3-02 |
| 3 | Check Valve | 0.13 Kg | 01-BR3-03 |
| 4 | Spring | 0.02 Kg | 01-BR3-04 |
| 5 | Valve Seat | 0.76 Kg | 01-BR3-05 |
| 6 | Inner Cylinder | 1.45 Kg | 01-BR3-06 |
| 7 | Piston | 4.7 Kg | 01-BR3-07 |
| 8 | Piston Case | 6 Kg | 01-BR3-08 |
| 9 | Guided Sleeve | 0.9 Kg | 01-BR3-09 |
| 10 | Check Ring | 0.15 Kg | 01-BR3-10 |
| 11 | Retainer Ring | 0.25 Kg | 01-BR3-11 |
| 12 | "O" Ring | 0.01 Kg | 01-BR3-12 |
| 13 | Drive Chuckk | 2 Kg | 01-BR3-13 |
| 14 | Drill Bit | — | 01-BR3-14 |
Technical Parameters |
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| Item | Parameter | ||
| Length (Less bit) | 871 mm | ||
| Weight | 21 Kg | ||
| Outer Diameter | 82 mm | ||
| Connection Thread | API 2 3/8" REG | ||
| Bit Shank | BR3 | ||
| Hole Range | 90–115 mm | ||
| Work Pressure | 1.0–1.7 MPa | ||
| Recommended rotation speed | 30–50 r/min | ||
| Air Consumption (1.0 MPa) | 4 m³/min | ||
| Air Consumption (1.5 MPa) | 7 m³/min |
1. Small Water Well Drilling
The BR Series is suitable for shallow water wells and small-scale agricultural water supply projects. It performs efficiently in soft to medium-hard rock formations with low air consumption requirements.
2. Geological Exploration
Ideal for core sampling and exploration drilling in mineral survey projects. The lightweight design allows easy operation in remote or mountainous areas.
3. Construction Anchoring
Used in slope stabilization, rock anchoring, and foundation support drilling. Its compact structure is suitable for confined working spaces.
4. Mountain and Remote Area Drilling
Designed for portable drilling rigs used in remote or difficult terrain. It offers stable performance even with small compressors.
5. Light Mining and Quarrying
Suitable for small quarry blasting holes and light mining operations requiring small diameter drilling with low operational cost.
Low air consumption design for cost-saving operation
Lightweight structure for easy transportation and handling
Stable performance under low-pressure air systems
Simple internal structure for easy maintenance
High adaptability for portable drilling rigs
Heat-treated alloy steel for improved durability
Suitable for remote and mountain drilling conditions
Flexible compatibility with multiple connection standards
Q1: What is the BR Series DTH Hammer used for?
The BR Series is designed for small diameter drilling applications such as water wells, geological exploration, anchoring, and light construction drilling. It is ideal for portable and low-pressure drilling systems.
Q2: What type of air compressor is required?
The BR Series operates under low air pressure conditions (0.8–1.7 MPa), making it suitable for small and medium portable screw air compressors commonly used in light drilling projects.
Q3: Can you provide OEM or private label service?
Yes, we support full OEM and private label services including logo engraving, nameplate customization, color options, packaging design, and model branding.
Q4: What is the delivery time?
Standard models are usually shipped within 7–15 days. Customized orders may take 20–30 days depending on quantity and requirements.
Q5: How is the product shipped internationally?
We ship by sea freight, air freight (for urgent orders), or land transport. Products are securely packed in export-grade wooden cases to ensure safe delivery.
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