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Enterprise Profile
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Product Introduction
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2026
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Sandvik RD525 Top-Hammer Hydraulic Rock Drill
The product adopts a modular split structure with three independent detachable units for impact, rotation and flushing. This drastically reduces the number of high-pressure sealed connections and significantly lowers the risk of leakage failures.
The RD525 is a high-power top-hammer hydraulic rock drill manufactured by Sandvik. Its core technical specifications are as follows: impact power 25 kW, impact frequency 93 Hz, operating impact oil pressure range 100–235 bar, maximum pressure 235 bar. Three types of rotation motors (OMS80/125/160) are available, delivering a maximum output torque of 700 N·m with a rotational speed range of 0–400 rpm. For regular drifting, the drill covers hole diameters of 43–64 mm, while reaming ranges from 76–127 mm. It is compatible with T35, T38, T45 shank adapters as well as R39 and H35 drill rods. Weighing 225 kg with an overall length of 1010 mm, the compact low-profile body enables unobstructed operation in narrow crosscuts and edge support areas. The maximum flushing water pressure is 20 bar, and both water and air dual-channel slag removal are supported.
The drill adopts a split modular design, with three independent modules for impact, rotation and flushing. The number of high-pressure sealing joints is greatly reduced, which significantly lowers the risk of fluid leakage. Visual wear inspection windows are pre-installed on the body, allowing operators to check the wear of bushings and pistons without complete disassembly. This facilitates preventive maintenance and drastically cuts underground downtime. An integrated hydraulic stabilising buffer at the front head counteracts recoil impact force during drilling to reduce wear on drill rods and shank adapters.
Equipped with intelligent adaptive anti-jamming functions, the rock drill can interconnect with the SICA on-board control system of DD422i rigs and the AutoMine autonomous mining system. It collects real-time data including rock hardness and drilling torque to dynamically adjust impact energy, feed force and rotation speed automatically. When encountering fractured rock, alternating soft and hard strata or clay interlayers, the drill retracts automatically to prevent rod jamming and sharply reduce related faults. It delivers outstanding hole straightness and precise control of roadway overbreak and underbreak.
It boasts remarkable digital and maintenance advantages. Built-in data acquisition ports transmit real-time data such as impact pressure and component wear to the surface control centre to support remote unmanned drilling operations. Faulty modular units can be replaced separately underground. Official upgrade kits are available for on-site optimisation of hydraulic logic, extending the overall service life of the rock drill.
RELATED INFORMATION
2024-02-10
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Address: Lianhua Mountain, Yangjiazhangzi Economic and Technological Development Zone, Huludao City, Liaoning Province, China
Telephone:0086-429-4428053 0086-429-4428052
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