RD8 Drifter is a core New Original Hydraulic Rock Drill designed for jumbo drill rigs, serving as the backbone of large-scale drilling operations in mining and construction. With a weight of 160 kg, a drill diameter range of 38-115 mm, and a rated power of 28 kW, it excels in both underground tunnel/coal mine scenarios and open-pit quarry/metal mine blasting drilling, meeting the rigorous demands of high-intensity work.
| Dimensions and Weight |
| Weight |
136 Kg (300 Ib) |
| Length |
902 mm (2 ft 11.5 inch) |
| Height |
154 mm (6 inch) |
| Width |
372 mm (14.6 inch) |
| Rotation Ratings |
| Motor size |
80 cc |
| Rotation torque, max |
270 Nm (199 Ibf-ft) |
| Rotation speed |
0 – 425 rpm |
| Rotation pressure, max |
210 bar (3,045 psi) |
| Oil consumption, max |
60 I/min (2.12 cfm) |
| Impact Ratings |
| Impact power, max |
8 kW (11 hp) |
| Impact frequency |
54 Hz |
| Input power to rock drill, max |
17 kW (22.8 hp) |
| Drill pressure |
137 bar (1958 psi) |
| Drill oil flow |
75 I/min (2.6 cfm) |
| Flushing Flow and Pressure |
| Flushing water pressure, max |
10 bar (145 psi) |
| Lubricating air consumption |
11 I/s – 5 bar (23.3 cfm – 72.5 psi) |
| Flushing water consumption |
40 – 120 I/min (1.4 – 4.3 cfm) |
| Drilling Parameters |
| Rod size |
T38 |
| Hole range |
43 – 76 mm (11/16 – 3 inch) |
| Accumulator Charge Pressure |
| Intake |
55 bar (800 psi) |
| Return |
4 bar (58 psi) |
| Hose Sizes |
| Percussion hose |
3/4 inch |
| Drain hose |
3/8 inch |
| Rotation hoses |
3/4 inch |
| Flushing hose |
3/4 inch |
| Lubrication hose |
3/8 inch |
| Percussion return hose |
3/8 inch |
| Shank Adapter |
| T38 |
90029729 / 435-21401.10 |
This Hydraulic Drifter undergoes strict factory quality inspections to ensure 100% compatibility with Atlas Copco/Epiroc jumbo drill rigs. It eliminates common issues like low drilling efficiency and frequent malfunctions that plague non-original alternatives, especially in harsh underground or open-pit environments.
Its precision-engineered structure delivers powerful impact force and stable drilling performance. The 28 kW rated hydraulic power converts into high-frequency mechanical impact, enabling fast and accurate blasting hole drilling (38-115 mm) — critical for improving project progress in tunnel excavation and open-pit mining. At 160 kg, it balances portability and stability, fitting seamlessly with most standard jumbo rig configurations.
The RD8 Drifter features high-strength alloy components and a sealed design. It resists dust, moisture, and continuous vibration, maintaining reliable operation in extreme conditions such as underground tunnels with poor ventilation and open-pit sites with temperature fluctuations.
As a dedicated Hydraulic Rock Drill for jumbo rigs, it balances power and energy efficiency. It reduces fuel consumption while maximizing drilling output, making it ideal for long-duration mass drilling projects.
Key benefits include short delivery time and competitive pricing. This makes it a cost-effective solution for mining companies and construction teams needing timely equipment replacement or expansion.
Non-original Hydraulic Drifters often fail to withstand heavy loads or adapt to dual-scenario use, leading to costly downtime and project delays. But the RD8 Drifter maintains structural integrity and performance stability long-term, supported by original factory quality assurance.
Whether for underground tunnel excavation, coal mine drilling, or open-pit quarry blasting, this Hydraulic Rock Drill delivers consistent results. It empowers your jumbo drill rigs to operate at peak efficiency, driving productivity in large-scale drilling operations.
