FK20-1BCDL Single-Boom Face Drill Rig Unveiled

Jinan Focor's FK20-1BCDL is a new single-boom drilling jumbo built for fast, accurate face drilling in narrow underground workings. The rig's design focuses on versatility and efficiency: it can operate in tunnels up to 6.0 m × 6.1 m cross-section with a 15° gradient. Its single hydraulic boom rotates a full 360°, enabling blast holes and roof/side bolt holes to be drilled in any direction. The boom's automatic anti-jamming system and hydraulic feed keep holes aligned without manual calibration. In operation, the rig offers a compact footprint and strong climb capability – it runs on four-wheel drive with 15° gradeability, and can support operations on mine faces, roofs, side walls and floor panels ranging 8–45 m²

Drilling Capacity and Mechanics: The FK20-1BCDL drills holes 32–76 mm in diameter, using a high-frequency Focor/HYG550 hydraulic rock drill. This drill produces 24 kW impact power at 60–75 Hz, which is higher than typical competitors' drills. A 5-cylinder Deutz diesel engine (~58 kW at 2300 rpm) powers the rig, supplemented by a 55 kW ABB electric motor for auxiliary systems. The hydraulic system (max 130 bar pressure) drives the boom and feed: the boom extends to 5.85 m and can drill up to about 3.5 m deep in one go. The chassis (11,200 mm long, 1910 mm wide) weighs roughly 11,500 kg and includes Dana axles for traction. It can travel at 10 km/h and steer ±41° for easy maneuvering.

Performance and Applications:In practice, the FK20-1BCDL drills efficiently through hard rock. Operators report drilling speeds on the order of 0.8–2.0 meters per minute (depending on rock hardness), though exact cycle time varies. With a maximum rotation torque of 980 Nm and 15 kN feed force, it handles demanding drilling jobs. Its 2.7–3.5 m effective drilling depth (standard boom; optional double-layer boom extends reach) covers most face drilling needs. The rig's robust construction supports continuous blasting and bolting work. Typical applications include underground metal and coal mining, tunnel excavation, road and railway tunnel construction, and other projects requiring precise face drilling. Focor notes that this single-boom design is especially suited to confined spaces where twin booms would not fit.

The FK20-1BCDL is CE- and ISO-certified and comes with a standard one-year warranty. Focor offers spare parts and worldwide after-sales support via its China factories. In summary, the FK20-1BCDL combines high drilling power with smart controls and safety for modern underground drilling. Mining contractors seeking a versatile, efficient face drill rig can inquire with Focor – the jumbo is OEM-customizable and ready for immediate delivery.