BR3 Quarry Mining High Air Pressure DTH Hammer
Series DTH Hammers: BR1 / BR2 / BR3
DESIGN HIGHLIGHTS
Operating air pressures between 0.8Mpa and 1.5Mpa.
Valveless hammer design for optimized airflow.
Simple structure: easy to assemble, disassemble, and maintain.
Higher impact frequency and significantly faster drilling speed.
Efficient performance with lower air and oil consumption.
Engineered specifically for demanding quarrying environments.
APPLICATIONS
These high-performance hammers are widely utilized across various industries including:
Mining
Quarrying
Road Construction
Drilling & Blasting
Water Well Drilling
Slope Protection
Anchoring
DTH HAMMER SERIES SUPPLIED
- High Pressure Series
- Medium Pressure Series
- Low Pressure Series
- High Efficiency High Pressure Series
- Reverse Circulation Series
| Type |
Model |
Length |
Weight |
External Dia. (mm) |
Hole Range |
| (mm) |
(kg) |
(mm) |
| 3.5 inch |
DHD3.5 |
930 |
25 |
Φ82 |
Φ90-110 |
| 4 inch |
DHD340 |
1030 |
39 |
Φ99 |
Φ110-135 |
| SD4 |
1084 |
40.5 |
Φ99 |
| QL4 |
1097 |
41 |
Φ99 |
| Mission40 |
1005 |
40 |
Φ99 |
| 5 inch |
DHD350 |
1214 |
76.5 |
Φ125 |
Φ135-155 |
| SD5 |
1175 |
72.5 |
Φ125 |
| QL5 |
1147 |
73 |
Φ125 |
| Mission50 |
1110 |
68.5 |
Φ125 |
| 6 inch |
DHD360 |
1248 |
100 |
Φ142 |
Φ155-190 |
| SD6 |
1261 |
100 |
Φ142 |
| QL6 |
1212 |
95 |
Φ146 |
| Mission60 |
1161 |
90 |
Φ146 |
| 8 inch |
D85 |
1492 |
188 |
Φ180 |
Φ195-254 |
| SD8 |
1463 |
192 |
Φ180 |
| QL8 |
1465 |
182 |
Φ180 |
| Mission80 |
1338 |
176 |
Φ180 |
| 10 inch |
SD10 |
1502 |
290 |
Φ226 |
Φ254-311 |
| NUMA100 |
1510 |
288 |
Φ226 |
BR3 DTH Hammer Detailed Specifications
| Hammer Length without bit: |
871 (mm) |
| Top sub thread: |
API 2 3/8"REG PIN |
| Outside diameter: |
82(mm) |
| Weight: |
21(KG) |
| Bit diameter: |
90-115(mm) |
| Working Pressure: |
1.0-1.7MPa |
| Air consumption: |
4-7(M3/min) |
| Bit shank: |
BR3 |
Frequently Asked Questions
What is a BR3 DTH Hammer?
The BR3 is a high air pressure Down-the-Hole (DTH) hammer designed for 3.5 to 4-inch drilling applications, specifically optimized for quarrying and mining operations.
What are the benefits of a valveless hammer design?
Valveless hammers offer a simpler internal structure, which leads to easier maintenance, longer service life, and more efficient air consumption during drilling.
What air pressure is required for these hammers?
The BR series hammers typically operate within an air pressure range of 0.8Mpa to 1.5Mpa, with the BR3 specifically rated for 1.0-1.7MPa for optimal performance.
Can these hammers be used for water well drilling?
Yes, DTH hammers are highly versatile and are widely used for water well drilling, as well as road construction, anchoring, and slope protection.
How does the impact frequency affect drilling?
A higher impact frequency allows the hammer to strike the rock more often per minute, which directly results in a faster penetration rate and higher overall drilling speed.
What bit shank is compatible with the BR3 hammer?
The BR3 hammer is designed to be used with a standard BR3 bit shank, ensuring a secure and efficient connection for transferring energy to the drill bit.
KAT DRILLING
