BFT-B28 hydraulic rock drill Bft-B28 hydraulic rock drill (internal rotation \ external rotation) hydraulic drilling machine is a high-pressure oil as a powerful drilling equipment working medium, it has a small, light weight, drilling speed, small vibration, low noise, low energy consumption, easy operation, low failure rate, long life and other advantages. Its efficiency is 5 to 10 times the pneumatic drill, the energy consumption is only one-third of a pneumatic drill. At 7.6 degrees on Platts granite drilling φ40 mm, drilling speed of 0.8 to 1.2 meters per minute. QL hydraulic rock drill rig to replace the wind the best equipment. Uses various rocks, reinforced concrete, plain concrete blast hole drilling. Applications I. Project areas: earthwork, demolition, road and bridge engineering, tunneling works, (non) excavation works and water conservancy. Second, the mining sector: stone mining (marble, granite, sandstone, limestone, etc.), mining, coal mining, sand and gravel mining and so on. 1. Low energy consumption, a full set of installed power 15KW, the same rock drilling boreholes wind energy is only 1/3 2. Small, but ≥85 joule impact energy, the impact of frequency ≤46HZ. High frequency, that tip up to 3000 times per minute impact, rotated to 120kg of force powerful drilling. In drilling hardness of granite Platts 7.6 blasthole when φ40mm, drilling speed up to 800mm per minute or more, that continuous to work, up to 50 meters per hour around the diamond. 3. Drilling stand fully guarantee the parallelism of drilling verticality vertical borehole. 4. easy to install, easy to carry, suitable for field work. 5. The hydraulic rock drill noise than pneumatic rock drill low 10dBA, use the rack drilling has greatly improved the workers' working environment. 6. Long service life, the impact of key parts pneumatic piston life of more than three times. 7. The hydraulic rock drill torque, reduced fiber card phenomenon, the impact of stress wave approaching a rectangular wave, improve the solder life. 8. Low price, only one-tenth of similar foreign products. Basic parameters No. Parameter name Units Values ??B28 hydraulic rock drill 1 Shock Operating hydraulic parameters impact Mpa 12 ~ 16 2 Shock Operating flow L / min 30 ~ 60 3 Impact Frequency Hz ≥43 4 impact energy J 50 ~ 80 5 rotation parameters of the swivel Working oil pressure Mpa 8 ~ 16 6 swing work flow L / min 20 ~ 40 8 maximum torque N? m 40 ~ 60 11 Weight kg ≤30 13 drill diameter mm 32 ~ 45 14 Drilling depth m 8