Air Leg Rock Drill Supplier & Exporter

Heavy-Duty Pneumatic Solutions for Modern Underground Mining & Tunnelling Infrastructure

Industrial Pneumatic Leg Drills: Elite Engineering & Global Distribution

As a premier global Air leg rock drill supplier and exporter, Shandong E-Way Machine Co., Ltd. delivers high-performance pneumatic systems engineered for demanding environments. We serve underground mining, heavy tunneling, civil construction, and quarrying operations. Our product line ranges from the high-efficiency YT28 Handheld Rock Drill to deep-stroke production drilling systems. These machines are optimized to offer high penetration rates, structural reliability, and low air consumption in hard rock conditions ($f = 8 \text{ to } 18$).

Modern drilling demands reliability, high torque output, and low vibration. By combining advanced metallurgy, specialized heat treatment, and precision manufacturing, we supply drilling equipment that minimizes down-time. Our global supply chain ensures rapid delivery of critical assemblies and wear parts to support continuous operations.

50+
Exporting Countries
99.8%
Quality Pass Rate
15+
Years Engineering Experience
24/7
Technical Support

Premium Pneumatic Leg & Jack Hammer Series - Top Selection

YT28 Handheld Rock Drill
High Quality YT28 Handheld Rock Drill Pneumatic Rock Drill with air Leg for Blasting in Tunnel Mining Jack Hammer and Mining
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Hand-held Pneumatic Rock Drill
Hand-held Pneumatic Rock Drill/Air Leg Rock Drill Jack Hammer/rock Drilling Machine
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Kaishan Hand Held Air Rock Drill
China Kaishan Brand Hand Held air Rock Drill air Jack Hammer for Sale
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Crawler Drilling Rig
Rock Quarry 35m Mining Integrate Crawler Stone Blasting Hole drilling Rig Machine With air Compressor
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Kaishan YT28 Air Leg Drill
Kaishan YT28 High-efficiency Hand-held Air Leg Pile Driver Rock Drill Hammer Bit Condition Pump Construction Mining New China 28
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Kaishan YO-18 Portable Pneumatic Rock Drill
Kaishan YO-18 Portable Pneumatic Rock Drill Rig Handheld Air Leg Quarry Drilling Machine with Core Motor Component
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YT27 Diesel Rotary Drilling Rig
Air Leg Diesel Rotary Drilling Rig YT27 Durable Jack Hammer Portable Mining Rock Drill with Engine for Underground Mining
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YT29A Pneumatic Rock Drill
YT29A Pneumatic Rock Drill Air Leg Long Stroke Drilling Machine Perforadora De Roca Deep Hole Rock Drill
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Global Trends in Air Leg Rock Drill Application

The global demand for reliable rock drills is shifting due to evolving workplace safety standards and project cost limits. Traditional jackhammers are being replaced by high-yield pneumatic systems that minimize mechanical strain on operators while maintaining fast penetration speeds in tough formations.

Ergonomics & Safety

Heavy miners and construction firms require advanced silencing systems and anti-vibration features to lower Hand-Arm Vibration Syndrome (HAVS) risks.

Air Consumption Efficiency

Reducing compressed air needs per foot drilled lowers overall compressor energy usage, dropping fuel or power requirements on remote job sites.

Corrosion & Wear Resistance

Using premium steel alloys and carburizing heat treatments allows pistons, cylinders, and rifle bars to better withstand acidic, highly humid underground water.

Procurement Drivers for Industrial Buyers & Mining Enterprises

Global procurement teams evaluate suppliers based on the total cost of ownership (TCO) of their rock drills. While initial purchase price matters, the frequency of replacement parts—such as water tubes, pawls, rifle bars, and rotation sleeves—has a larger impact on operational costs. Shandong E-Way Machine designs internal parts to maximize wear life under extreme pressures, ensuring reliable operation for our export partners.

Technical Specification & Selection Matrix

Selecting the correct pneumatic rock drill depends on geological parameters, tunnel profiles, and available air compressor capacity. The matrix below details the technical specifications of our primary air leg rock drills:

Model Designation Weight (kg) Dimensions (L×W×H) (mm) Piston Diameter (mm) Piston Stroke (mm) Air Consumption (L/s) Impact Frequency (Hz) Recommended Rock Hardness ($f$)
YT24 24 678 × 228 × 184 70 70 ≤ 52 ≥ 31 f = 8 - 18
YT27 27 668 × 248 × 202 80 60 ≤ 57 ≥ 36 f = 8 - 20
YT28 28 661 × 247 × 220 80 60 ≤ 55 ≥ 37 f = 8 - 18
YT29A 29 659 × 248 × 205 82 60 ≤ 59 ≥ 39 f = 8 - 20
Y19A (Dual-Purpose) 19 600 × 220 × 150 65 50 ≤ 37 ≥ 28 f = 6 - 12

Pneumatic Performance Optimization

Our rock drills feature a valveless air distribution mechanism that reduces pressure loss, allowing for consistent operation even with variations in line pressure. The control lever on the backhead coordinates air and water flow. Water flows only when drilling is active, which suppresses dust and keeps the workplace safer.

About Shandong E-Way Machine Co., Ltd.

Shandong E-Way Machine Co., Ltd. is a modern industrial equipment manufacturer dedicated to the research, development, production, and service of high-quality machinery and engineering solutions. With a strong focus on technological innovation and manufacturing excellence, the company serves customers in mining, construction, and various heavy-duty industrial sectors worldwide.

Over the years, Shandong E-Way Machine has developed a diversified product portfolio covering mining and construction drilling equipment, pneumatic and hydraulic tools, anchoring and support systems, mechanical transmission components, and a wide range of spare parts and accessories. In addition, the company provides customized machining services, including precision components, structural parts, and wear-resistant engineering plastic products, meeting the specific needs of different working conditions and industries.

Technological Innovation for the Future

Innovation is the core driving force behind Shandong E-Way Machine’s sustainable development. The company brings together experienced engineers and technical experts specializing in mechanical design and industrial equipment development. Through continuous research and development, we improve product structures, enhance operational efficiency, and upgrade performance reliability.

By integrating advanced manufacturing technologies and practical engineering experience, we have developed a series of independently designed products that deliver stable performance even under complex and demanding working environments.

Quality First, Safety Guaranteed

Quality is the foundation of our enterprise. Shandong E-Way Machine strictly follows a comprehensive quality management system throughout every stage of production—from raw material selection and precision machining to final inspection and testing.

Understanding the critical importance of safety in mining and industrial applications, our products are engineered with enhanced structural strength, safety protection features, and long-term durability. This ensures reliable operation under high load, harsh conditions, and continuous working environments.

Customer-Centric Service, Win-Win Cooperation

At Shandong E-Way Machine, we uphold a customer-first philosophy and are committed to delivering complete lifecycle support. Our service system includes pre-sales consultation, technical solution design, installation guidance, and comprehensive after-sales support.

We aim not only to provide high-quality products but also to ensure customers receive timely technical assistance and reliable service throughout the entire usage process. This commitment enables long-term partnerships and mutual success with our global clients.

Looking Ahead

Moving forward, Shandong E-Way Machine Co., Ltd. will continue to embrace the principles of innovation-driven growth, quality excellence, and service-oriented development. We are committed to advancing intelligent manufacturing, expanding application areas, and improving product efficiency, safety, and sustainability. Together with global partners, we strive to contribute to the continuous progress of the industrial machinery sector and create a smarter, safer, and more efficient future.

Our Specialized Production Facilities & Assembly Workstations

Industrial Solutions, Compliance & Technical Roadmap

Macro Industrial Drilling Solutions

Underground excavation presents distinct geological challenges. In tunnel boring and gallery driving, our air leg rock drills act as the primary face-drilling tool. When paired with high-performance telescopic pneumatic air legs, they support stable feed force at various angles. This stability makes them suitable for installing overhead rock bolts and drilling horizontal blast holes. We supply tailored packages including lubrication systems (FY200B line lubricators), air line filters, and carbide-tipped hex drill steels to optimize performance in different rock types.

Localization & Support

Shandong E-Way Machine ensures global accessibility through a robust export framework. We assist customers with international logistics, customs clearances, and regulatory compliance. Our technical documents include exploded view parts diagrams and step-by-step rebuilding procedures to support site technicians in remote mining regions.

Technology Roadmap & Future Outlook

Our research and development program focus on three key priorities:

01

Vibration Isolation

Developing floating handle mounts and composite isolation covers to protect operators from vibration exposure.

02

Alloy Metallurgy

Using vacuum-decarburized steel alloys to extend piston service life under high-pressure conditions (up to 0.63 MPa).

03

Precision Lubrication

Redesigning interior channels to optimize oil dispersion, reducing line oil consumption by up to 15%.

04

Emission Reductions

Developing high-efficiency exhaust mufflers to reduce sound pressure levels while maintaining back-pressure balance.

Premium Pneumatic Leg & Jack Hammer Series - Full Specifications

YT28 Handheld Rock Drill Good Sales
Good Sales YT28 Handheld Rock Drill Pneumatic Rock Drill with air Leg for Blastng in Tunnel Mining Jack Hammer and Mining
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YT29S Handheld Pneumatic Leg Rock Drill
High-Quality Chinese-Made YT29S Handheld Pneumatic Leg Rock Drill for Sale
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YT28 Jack Hammer Drill Pneumatic
Hand-held and Air Leg Pneumatic Rock Drill Yt28 Air Leg Jack Hammer Drill Pneumatic Coal Mining Underground Rig
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Pneumatic Air Leg Rock Drill Series
YT24/YT27/YT28/YT29A/7655/YSP45 Pneumatic Air Leg Rock Drill Series, Portable Jack Hammer for Mining, Quarry & Construction
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Kaishan Core Drilling Rig
Kaishan Gasoline/Diesel Powered Core Drilling Rig Rock Drill Hammer with Air Leg YO18 YO20 Portable Hand Held Jack Hammer
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ZEGA D535 Crawler DTH Drill Rig
ZEGA D535 Crawler DTH Drill Rig With Diesel-Powered Air Compressor Motor & Bearing For High Efficiency Quarry Mining
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Y19A Handheld Rock Drill
Factory Sells Y19A Handheld air Leg Dual-purpose Rock Drill Jack Hammer at Low Price
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Mining Crawler DTH Drilling Rig KT5
Mining Diesel Automatic Crawler DTH Rock Blasting Drilling Rig With Engine And Air Compressor Model Kt5
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Air Leg Rock Drill Technical FAQ

Q1: What are the main differences between the YT28 and YT29A air leg rock drills?
The primary differences lie in the cylinder bore diameter and the resulting impact energy. The YT28 has an 80mm piston diameter, whereas the YT29A features an 82mm piston diameter. The YT29A consumes slightly more compressed air (59 L/s compared to the YT28's 55 L/s) but delivers higher impact frequency and energy, making it better suited for ultra-hard rock formations ($f > 15$).
Q2: Why is the inline oil lubricator (e.g., FY200B) critical for air leg rock drill operations?
Pneumatic rock drills operate at frequencies up to 40 Hz. The high-speed sliding movement of the piston within the cylinder generates significant friction heat. Without continuous lubrication from an inline line oiler, metal-on-metal friction can cause piston sticking and premature wear on the rifle nut. Always ensure the oiler is filled with ISO VG 46 or 100 pneumatic tool oil.
Q3: How do you prevent water from leaking into the cylinder during wet drilling operations?
Water leakage is typically prevented by maintaining the correct balance of air and water pressures, and by replacing the water tube and rubber seals when they wear. Our drills feature a centralized air-water control design. If the water pressure exceeds the air pressure, or if the water tube is damaged, water can enter the fronthead and wash away lubrication. Always keep water pressure at least 0.1 MPa lower than air pressure.
Q4: What air pressure range is required for optimal performance of these drills?
The optimal operating air pressure is between 0.5 MPa and 0.63 MPa (approx. 72 to 91 PSI). Running below 0.4 MPa significantly decreases penetration speed, while running above 0.65 MPa increases wear on internal parts like the rifle bar and pawls.
Q5: Can these rock drills be converted from air-leg support to hand-held operation?
Yes, models like the YT28 and Y19A can be unmounted from the air leg. The Y19A is a dual-purpose model designed for both handheld down-hole drilling and air-leg horizontal drilling. This versatility makes it ideal for small-scale quarries and municipal repair works.
All Air leg rock drill Products