FT160A/FT160B/FT160C Rock Drill Air Leg

FT160A/FT160B/FT160C Rock Drill Air Leg
Professional Pneumatic Air Leg For Mining, Quarrying And Tunnel Construction

The FT160A/FT160B/FT160C Rock Drill Air Leg is an essential accessory for pneumatic air leg rock drills. Designed to provide stable thrust during drilling, it enables operators to achieve higher drilling efficiency with less physical effort. These air legs are widely used with YT23, YT23D, YT27, and YT29 series pneumatic rock drills in underground mining, quarrying, railway construction, hydropower engineering, and tunnel excavation.

Instead of manually applying drilling force, the pneumatic air leg uses compressed air to generate continuous feed pressure, allowing the rock drill to maintain constant contact with the rock surface. This significantly improves penetration speed, drilling accuracy, and operator comfort while reducing fatigue during extended drilling operations.

The FT160 series is available in three standard models:

FT160A – Standard Length
FT160B – Short Type
FT160C – Long Type

Each model is designed to meet different tunnel heights and working conditions.

Advanced Pneumatic Feed System

The FT160 series converts compressed air into smooth axial thrust.

Working Principle

During drilling:

Compressed air enters the air leg cylinder.
Internal pressure extends the piston.
Continuous thrust is applied to the rock drill.
The operator controls drilling direction.
Stable feed pressure maintains efficient drilling.

The pneumatic feed system provides:

Constant drilling force
Smooth operation
Reduced vibration
Improved drilling precision
Higher drilling efficiency
Three Models For Different Working Conditions
FT160A Rock Drill Air Leg

The FT160A is the standard model suitable for most underground mining and tunneling applications.

Typical Features:

Standard reach
Excellent stability
Ideal for medium-height tunnels
Compatible with YT23, YT23D, YT27 and YT29 drills

Approximate Specifications:

Weight: 17 kg
Retracted Length: 1668 mm
Extended Length: 3006 mm
Feed Stroke: 1338 mm
FT160B Rock Drill Air Leg

The FT160B is a shorter version designed for confined underground spaces.

Advantages:

Compact design
Easier handling
Suitable for narrow drifts
Excellent maneuverability

Approximate Specifications:

Weight: 16 kg
Retracted Length: 1428 mm
Extended Length: 2526 mm
Feed Stroke: 1098 mm
FT160C Rock Drill Air Leg

The FT160C provides a longer extension for higher working faces.

Advantages:

Greater drilling reach
Suitable for large tunnels
Increased feed stroke
Improved flexibility

Approximate Specifications:

Weight: 18 kg
Retracted Length: 1820 mm
Extended Length: 3310 mm
Feed Stroke: 1490 mm
Main Features
Stable Pneumatic Feed Force

The air leg maintains constant drilling pressure for consistent penetration.

Reduced Operator Fatigue

The pusher leg supports the rock drill, minimizing manual effort.

Improved Drilling Accuracy

Steady feed force produces straighter, more accurate drill holes.

Lightweight Construction

Despite their strength, FT160 series air legs are easy to transport and operate.

Durable Components

Manufactured from high-strength steel with wear-resistant seals for long service life.

Compatible Rock Drill Models

The FT160 series is commonly used with:

YT23 Rock Drill
YT23D Rock Drill
YT27 Rock Drill
YT29 Rock Drill
7655 Rock Drill
7655D Rock Drill

Some variants such as FT160BC and FT160BD are specifically designed for YT28 rock drills.

Applications
Underground Mining

Suitable for:

Blast hole drilling
Ore development
Production drilling
Mine roadway excavation
Tunnel Construction

Used in:

Railway tunnels
Highway tunnels
Metro systems
Hydropower projects
Quarry Operations

Ideal for:

Granite quarrying
Limestone mining
Marble extraction
Aggregate production
Infrastructure Construction

Applications include:

Foundation drilling
Rock excavation
Slope stabilization
Anchor hole drilling
Benefits Of Using FT160 Air Legs
Higher drilling productivity
More stable drilling performance
Reduced labor intensity
Better drilling precision
Longer drill steel life
Lower operating costs
Improved workplace safety
Maintenance Tips

Proper maintenance extends service life.

Recommended practices include:

Clean the air leg after every shift.
Lubricate moving parts regularly.
Inspect seals and O-rings.
Check air hose connections.
Replace worn piston seals promptly.
Store in a dry environment.

Routine maintenance minimizes downtime and ensures consistent performance.

Why Choose Us
Professional Rock Drilling Equipment Manufacturer

We specialize in:

Pneumatic Rock Drills
Rock Drill Air Legs
DTH Drilling Rigs
Mining Equipment
Rock Drilling Accessories
Strict Quality Control

Every FT160 air leg is tested for:

Air tightness
Feed performance
Structural strength
Durability
Factory Direct Supply

We provide:

Competitive factory pricing
Stable product quality
Fast delivery
Professional export service
OEM & ODM Services

Customized services include:

Private labeling
Color customization
Packaging design
Technical modifications
Global Export Experience

Our products are exported to mining companies, distributors, tunnel contractors, and construction firms worldwide.

Professional Technical Support

We provide:

Product selection
Installation guidance
Maintenance support
Spare parts service
FAQs
1. What is an FT160 Rock Drill Air Leg?

It is a pneumatic support device that provides continuous thrust for air leg rock drills during drilling operations.

2. What is the difference between FT160A, FT160B, and FT160C?

The primary difference is their overall length and feed stroke. FT160B is shorter for confined spaces, FT160A is the standard model, and FT160C provides a longer reach.

3. Which rock drills are compatible?

They are compatible with YT23, YT23D, YT27, YT29, 7655, and 7655D pneumatic rock drills.

4. What industries use FT160 air legs?

Mining, quarrying, tunneling, railway construction, hydropower, and infrastructure engineering.

5. How does an air leg improve drilling?

It supplies continuous feed force, reducing operator effort while increasing drilling efficiency and accuracy.

6. Is compressed air required?

Yes. The FT160 series operates entirely using compressed air.

7. Can the air leg be used underground?

Yes. It is specifically designed for underground mining and tunnel construction.

8. Is maintenance complicated?

No. Regular lubrication, cleaning, and seal inspection are generally sufficient.

9. Is OEM customization available?

Yes. OEM and ODM services are available.

10. Do you provide spare parts?

Yes. Complete spare parts and technical support are available.