YT24 Air Leg Rock Drill
●Highly adaptable: Performs well in various rock hardness levels, borehole diameters, and depths.
●Robust and durable: Simple and sturdy structure, with key components resistant to wear, ensuring a long service life.
●Strong environmental adaptability: Excellent mechanical performance suited for diverse and complex conditions.
Introduction:
YT24 Air leg Rock Drill is a classic handheld pneumatic drilling equipment independently developed and produced by our company. Powered by compressed air, it integrates impacting, rotating, and slag-removing functions, and is equipped with an independent pneumatic leg to provide propulsion and support. It is an indispensable core drilling tool for small and medium-sized mines, quarries, tunnel excavation, and various rock excavation projects, suitable for drilling horizontal and inclined blast holes in medium-hard or hard rock (with a hardness coefficient f=8–18). This machine can be used in conjunction with the FT140BD or FT140BC type pneumatic legs and the FY200B type oil injector with a transparent housing, and can also be mounted on drill rigs or drill frames for operation.
YT24 Specifications
|
Weight |
kg |
24 |
|
L ×W×H |
mm |
678×228×184 |
|
Air pressure |
MPa |
0.63 |
|
Air consumption* |
L/s |
≤ 67 |
|
Impact frequency |
Hz |
≥ 31 |
|
Air hose size |
mm |
19 |
|
Water hose size |
mm |
13 |
|
Bore dia. |
mm |
Φ 34~Φ 42 |
|
Drilling depth |
m |
5 |
|
Shank size(Hex.×L) |
mm |
22*108±1 |
Air-leg Specifications
|
Model |
|
FT140BC |
FT140BD |
|
Length |
mm |
1687 |
1400 |
|
Feed length |
mm |
1250 |
965 |
|
Weight |
kg |
15.6 |
13.9 |
FY200B Line Oiler Specifications
|
Capacity |
ml |
200 |
|
Weight |
kg |
1.02 |
Product feature and application
Features
- Fully Pneumatic Design: All operations (impact, rotation, slag removal, and leg extension/retraction) are powered by compressed air, with no electrical components. This makes it inherently safe and particularly suitable for mining environments with risks of gas or dust explosions.
- Independent Pneumatic Leg: The leg is connected to the main unit via an air hose, allowing independent adjustment of angle and thrust. Operators can flexibly control the propulsion force, reducing labor intensity and improving drilling efficiency.
-
Wet Drilling: The machine is equipped with a water supply channel for wet drilling. Pressurized water is injected into the bottom of the hole through the central hole of the drill rod or a side-mounted water needle, moistening and flushing out rock dust.
-
Powerful Blowing: A dedicated "strong blow" air channel is included. When drilling deep holes or in muddy conditions, the strong blow device can be activated to inject a large volume of high-pressure air into the hole bottom, forcefully removing debris and effectively preventing drill rod jamming.
Application：
1. Mining
• Used for drilling blastholes in underground metal and non-metallic mines, especially suitable for development, stoping, and tunneling operations.
• Provides holes for subsequent blasting and ore extraction, serving as a critical initial step in the mining process.
2. Tunnel and Drift Engineering
• Suitable for drilling operations in railway, highway, hydropower station tunnels, and other underground excavation projects.
• Enables efficient operation in confined spaces with stable air-leg support.
3. Quarrying and Open-Pit Mining
• Applied in stone quarries and open-pit mines for drilling blastholes and splitting rock.
• Excels in bench drilling and rock fragmentation.
4. Civil Construction and Hydraulic Engineering
• Used in foundation works, rock anchoring, slope reinforcement, and hydraulic structure construction.
• Performs rockwork on hard rock foundations, laying the groundwork for water conservancy facilities.
5. Road Construction and Rock Cutting
• Employed for road cutting, slope trimming, and rock breaking in infrastructure projects.
• Enhances efficiency in projects requiring controlled blasting and rock clearance.
6. Emergency Engineering
• Suitable for rapid excavation, protective structure construction, and emergency rescue operations.
Production details
It is forged from high-strength alloy steel, undergoes precision machining and special heat treatment (such as carburizing and quenching), resulting in an extremely hard and wear-resistant surface while maintaining excellent toughness in the core, enabling it to withstand high-frequency impact loads.
All operations (start/stop, leg advance/retract, strong blow, water injection) are centralized on the control lever of the handle, which complies with ergonomic principles and facilitates one-handed operation.
Comes equipped with the FY200B oiler. It features a transparent housing for easy oil level observation. As compressed air flows through the oiler, it atomizes the lubricating oil, which is then carried by the airflow to all moving parts inside the machine (such as the cylinder, piston, and spiral mechanism), achieving continuous automatic lubrication.
Why choose us
- High Efficiency and Energy Saving, Excellent Overall Performance:Fast drilling speed, outstanding energy consumption control, and flexible, labor-saving operation.
- Robust and Durable, Industry-Leading Reliability:Reinforced core components, adaptable to harsh working conditions.
- Easy Maintenance, Worry-Free After-Sales Support
- Proven Classic Brand, Long-Standing Market Recognition
YT24 Rock Drill Section Drawing
FAQ
Q: What types of rock and working conditions is the YT24 Air leg rock drill suitable for?
A: The YT24 is designed for medium-hard to hard rocks (Solidity coefficient f=8-18), such as granite, limestone, sandstone, etc. It is widely used in underground metal mining, railway and highway tunnel excavation, quarrying, water conservancy projects, and various rock excavation applications.
Q: What essential equipment must be paired with the machine for it to work?
A: The machine must be paired with the following essential equipment:
Air Source: A stable and clean supply of compressed air is required, with a rated working pressure of 0.63 MPa and an air consumption of approximately 4.8 m³/min.
Water Source: For wet drilling, clean pressurized water is needed, typically with a water pressure of 0.3-0.5 MPa.
Air Leg: It is recommended to use an FT140BD or FT140BC type air leg to provide thrust and support.
Lubricator: It is recommended to use an FY200B type automatic lubricator for continuous internal lubrication of the machine.
Q:How is the machine controlled? Is the operation complicated?
A: No, it is not complicated. All core operations (starting/stopping, advancing/retracting the air leg, strong purging, and water injection) are integrated into two control triggers on the handle. The ergonomic design allows for easy one handed operation and has a low learning curve.
Q: After starting up, the machine does not impact or has weak impact. What could be the possible reasons?
A: Please check in the following order:
Air source: Is the air pressure above 0.5 MPa? Are the air hoses kinked or leaking?
Lubrication: Is there oil in the lubricator? Is the lubrication line clear?
Control valve: Is the operating trigger fully open?
Piston and cylinder: Are they severely worn or blocked by foreign objects? (This requires inspection by qualified personnel).
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