Featured Tunneling & Mining Solutions
High-reliability pneumatic drills and auxiliary haulage systems deployed in heavy mine tunnel infrastructure
Industrial Landscape & Engineering Dynamics of YT27 Pneumatic Rock Drill
Empowering underground mine tunneling, civil roadway excavation, and metallurgical shaft engineering with advanced pneumatic mechanics
1 Global Commercial & Mine Tunnel Project Trends
The global infrastructure renaissance and the aggressive expansion of deep-ore mining have substantially accelerated the demand for high-duty, agile pneumatic rock drills. In underground tunnel engineering—ranging from high-speed railway conduits and hydropower diversion shafts to gold, copper, and iron ore extraction drifts—the YT27 pneumatic rock drill serves as the primary mechanized workhorse.
Modern tunneling projects frequently encounter intricate lithological formations, narrow working headings, and steep gradients where large hydraulic drill jumbos are physically constrained or economically unviable. The flexibility, rapid deployment capability, and robust power-to-weight ratio of the air-leg YT27 rock drill deliver unprecedented commercial viability, curtailing downtime while ensuring rapid cycle turnarounds in blast hole preparation.
- Compact geometry ideal for cross-sections between 4.0 m² and 16.0 m² in tight drift profiles.
- Exceptional tolerance to volatile compressed air supplies, resisting severe moisture and particulate ingestion.
- Drastically reduced capital investment compared to hydraulic rigs, providing faster ROI for mining contractors.
2 Mechanical Superiority & Air-Leg Synergies
The YT27 air-leg rock drill is structurally crafted with high-frequency valve chest assemblies, a heavy-torque rifle bar rotation system, and an integrated water-air linkage flushing mechanism. When coupled with the FY250 or FY200B lubrication reservoir and the FT160A pusher leg, it provides uniform thrust forces across horizontal, inclined, and vertical up-hole angles.
Equipped with a precision-ground piston and carburized alloy cylinder, the YT27 transforms compressed air energy into concentrated impact shockwaves with minimal thermodynamic losses. Strong central flushing washes cuttings out cleanly, mitigating drill rod sticking and bit binding in fractured rock zones.
- Strong impact frequency delivering rapid penetration rates exceeding 250-400 mm/min in medium-hard granite.
- Centralized control handle grouping air, water, feed forward, and reverse retraction for single-operator mastery.
- Integrated muffler and vibration-dampening grip design compliant with modern occupational safety protocols.
3 Geological Drilling Dynamics (f=8 to 18)
Underground tunnel blasting relies heavily on perimeter precision and uniform burden distribution. In strata with Protodyakonov rock hardness coefficients ranging from f=8 (limestone, sandstone) to f=18 (quartzite, basalt, hard granite), the YT27 maintains an optimal balance between percussive impact energy and rotational torque.
This dynamic balance eliminates premature bit chipping while maintaining straight, non-deviating blast hole trajectories. Accurate borehole alignment minimizes overbreak and underbreak, drastically reducing downstream secondary breaking and mucking costs inside mine tunnels.
4 Maintenance Lifecycle & Preventive Protocols
Operational longevity in subterranean tunnels hinges on rigorous air-line lubrication and moisture separation. Utilizing specialized rock drill oils containing tackifiers and extreme-pressure additives ensures micro-film lubrication across high-velocity piston contact areas even at temperatures reaching sub-zero or high ambient humidity.
Standardized wear tolerances, interchangeable shank bushings (Hex 22mm × 108mm), and modular side bolt assemblies enable mine mechanics to perform full strip-downs and preventative rebuilds directly at the underground maintenance refuge, avoiding surface transport delays.
Pneumatic Breaker & Air Pick Technical Parameters
Complete engineering specification matrix of SHENLI heavy and light duty pneumatic breaking equipment
| Parameter / Model | TCA-7 | TCD-20 | TS11 | TPB-40 | TPB-60 | TPB-90 |
|---|---|---|---|---|---|---|
| Piston Diameter | 35 mm | 42.85 mm | 38 mm | 44 mm | 57.15 mm | 66.67 mm |
| Piston Stroke | 120 mm | 60 mm | 135 mm | 146 mm | 100 mm | 152 mm |
| Percussive Frequency | 1250 B.P.M | 2000 B.P.M | 1630 B.P.M | 1050 B.P.M | 1400 B.P.M | 1400 B.P.M |
| Net Weight (N.W) | 7.2 kg | 10 kg | 10.1 kg | 18 kg | 30 kg | 42 kg |
| Overall Length | 465 mm | 520 mm | 600 mm | 660 mm | 645 mm | 723 mm |
| Air Consumption | 1.0 m³/min | 1.1 m³/min | 19 L/S | 1.6 m³/min | 2.0 m³/min | 2.2 m³/min |
| Tracheal Diameter | 19 mm | 19 mm | Inlet 12 mm | 19 mm | 19 mm | 19 mm |
| Bit Head Shank Size | R26*80 | R26*80 | R22*82.5 | R25*108 | R32*152 | R32*152 |
Deep Underground Application Scenarios
Field-proven durability across hazardous mining drifts, bench tunneling, and civil construction jobs
1. Municipal Road Maintenance
Used for breaking damaged asphalt roads, cracked concrete pavement, old road curbs and road base residues. It is the main tool for daily road rush repair and road renovation projects, fast breaking and high efficiency.
2. Building Renovation & Demolition
Suitable for indoor and outdoor partial demolition of old buildings, breaking concrete walls, floor slabs and building foundations. Flexible operation in narrow spaces where large machinery cannot work.
3. Open-pit Mining & Quarry Works
Used for trimming rock faces, breaking loose ore blocks, cleaning piled rock waste and secondary crushing of large rocks, ensuring smooth mining operation and continuous crushing line feeds.
4. Tunnel & Civil Engineering
Auxiliary breaking and trimming inside the tunnel, removing protruding rock bodies, profiling ditch contours, and supporting anchor cable holes for permanent tunnel lining stability.
Product Spotlight: TS11 Pneumatic Breaker
Heavy-duty demolition air pick for quarry secondary breaking and tunnel trimming
TS11 Pneumatic Breaker Light Duty Pneumatic Breaker Mining Jack Hammer for Quarry Rock Breaking
SHENLI TS11 pneumatic pick is a professional light duty pneumatic breaker with application range similar to TCD20. Designed mainly for mining and quarry rock breaking this jack hammer delivers stable performance and lower operation costs with complete spare parts support and flexible packaging options.
We solve the core overseas customer concern of spare parts shortage and delayed replacement. We provide full set original accessories for this pneumatic breaker including chisels pistons valve assemblies return springs sealing rings and positioning pins. All wearing parts are sufficiently stocked all year round.
All accessories adopt unified standard specifications with strong universality and interchangeability. Customers can purchase single parts or complete wearing part sets without minimum order limit for accessories. Fast independent accessory delivery ensures quick on site equipment maintenance and avoids construction shutdown losses.
TS11 Product Description & In-Depth Technical Merits
The TS11 Pneumatic Pick is a robust handheld air demolition tool engineered for heavy-load breaking jobs. Widely adopted in construction, mining and road maintenance sectors, this air pick delivers powerful impact force with stable pneumatic performance.
Built with high-strength alloy steel body, TS11 pneumatic pick resists wear under continuous working conditions. Compact body design allows easy operation in narrow working spaces. It is compatible with standard pneumatic chisels, easy for daily maintenance and spare-part replacement.
Building Renovation & Demolition
Fits partial building demolition tasks. Breaks concrete walls, floor slabs and foundations in indoor/outdoor environments where large machinery cannot reach.
Tunnel & Civil Engineering
Provides auxiliary breaking and trimming for tunnel working faces. Removes protruding rock bodies and waste to keep tunnel surfaces flat and safe.
Infrastructure Reconstruction
Supports bridge renovation, foundation dismantling, and municipal partial breaking under severe site conditions with high resilience.
Factory Tour & Advanced Precision Manufacturing
Direct manufacturing excellence with state-of-the-art CNC machining, heat treatment, and precision grinding
Raw materials: All materials are sourced from domestic and international well-known suppliers, and the quality is free from any flaws.
Processing: We have all precision machining production lines, including high-precision CNC lathes, and multi-axis CNC milling machines. Machine tools are from well-known brands, and online quality assurance is performed at every step.
Heat treatment: All heat treatment activities are carried out in a sealed quench furnace with facilities including but not limited to carburizing, nitriding, volume quenching, annealing, and tempering.
Grind: We have world-class grinding equipment that is capable of maintaining dimensions to within 3 microns. The grinding line includes state-of-the-art equipment including universal CNC grinding machines, cylindrical CNC grinding machines with process gauges, CNC internal diameter grinding machines, and universal CNC grinding machines.
Surface treatment: We offer a range of surface treatment options painting and other processes. These processes increase the service life of the tools and provide them with an appearance that meets the customer's requirements.
Assembly & Commissioning: Assembly and testing are carried out by our dedicated team on custom-built assembly platforms and test machines. Each assembled rock drill is tested for torque, BPM, and air consumption. After successful testing, each machine receives a test certificate to ensure its quality.
Quality Control & Stringent Standards
Zero-defect manufacturing philosophy backed by precision instrumentation and comprehensive training
Quality Standards & Quality Management:
1. Customer satisfaction is achieved through the provision of 'zero defect' products and timely delivery.
2. Ensuring an orderly programme and traceable production scheduling.
3. Increased production efficiency through the latest technology and equipment.
4. The company provides regular training to its employees in accordance with the defined objectives, training needs and requirements.
Shenli is ISO 9001:2015 certified. We strive to constantly monitor and improve our processes to ensure the highest quality products. Experienced quality inspectors use a variety of precision instruments and special gauges to test the dimensional and functional performance of all components. Regular internal and external quality audits are carried out to continuously improve quality.
Company Profile, Mission & Culture
A heritage of pneumatic tool engineering excellence since 2005
SHENLI Brand Heritage
SHENLI is a leading supplier of superior pneumatic tools for the construction, mining and industrial markets. Since 2005, the Shenley brand has been synonymous with quality and innovation.
For over a decade, the SHENLI brand has represented performance, innovation and quality in the pneumatic tool industry. The SHENLI product line now offers a complete line of pneumatic tools, a wholly owned factory, pneumatic tools and a full line of accessories. With superior product performance, as well as superior product and reliability, competitive pricing for factory direct sellers, exceptionally ergonomically designed tools and quality warranty terms, Shenley has become an industry leader. We take every customer's problem seriously so that we can solve our common problems, and choosing Shenley is just the beginning for you. SHENLI will provide reliable service and support through every step of the process from product consultation to final delivery.
Corporate Culture & Vision
More attentive: Work together, keep improving.
More Focused: With sincerity, you can achieve anything.
More thoughtful: Customer first, service first.
Dare to innovate: Keeping up with the times and forging ahead.
Striving to be a world-class supplier of rock drill: Adhering to the development experience of pneumatic tools for many years, Shenli takes "customer first, service first" as the spirit of enterprise, and "strive to become the world's first-class rock drill provider" as the vision, constantly innovate technology, strive for perfection, and open up a broader market for customers.
Global Client Cooperation Cases
Trusted partnerships and on-site factory evaluations with international mining procurement teams
Dutch Clients
The Dutch customer came to our factory and was satisfied with the production equipment, raw materials as well as advanced processes that we have in place. The client then signed a custom order for 500 units after being shown all of these great things about what is possible here at this facility! They hope long-term cooperation can occur between both parties moving forward since they are happy overall from their visit today.
U.S. Customers
The American customer visits our factory and has an in-depth negotiation to reach a long-term cooperation relationship, focusing on pneumatic tool endurance, standardized spare parts compatibility, and fast containerized export logistics.
Japanese Customers
The Japanese customer was very satisfied with the factory equipment and production process. He also proposed that they work together on design, which would give them an edge over their competitors who do not have this partnership!
India Customers
We are delighted that Indian customers have visited our factory to learn more about ISO 9001 certification, which opens up new opportunities for us to collaborate. We explained in detail which parts go to which products, and how many different assembly lines there are, and we all understood. He is looking forward to working with us. This is our first cooperation, and we still maintain a cooperative relationship.
Our Certifications & Intellectual Property
Internationally recognized quality management and compliance certification portfolio
ISO 9001:2015 System
CE Marking Air Picks
CE Marking Rock Drills
Intellectual Property Cert
CE certification is a mandatory conformity mark for certain products sold within the European Economic Area (EEA). CE stands for "Conformité Européenne" which translates to "European Conformity." The CE mark certifies that a product has met EU consumer safety, health or environmental requirements. CE certification also allows manufacturers to freely circulate their products within the EEA.
ISO 9001:2015 is an international quality management system (QMS) standard that outlines requirements for a quality management system. The standard is designed to help organizations ensure they meet customer and regulatory requirements. Our factory has been ISO 9001:2015 certified since 2015, and all of our products are CE certified. This ensures that our products meet high standards of quality and safety, and that they can be freely circulated within the EU. CE certification and ISO 9001:2015 certification are just two of the ways we ensure that our products are of the highest quality.
Complete Underground Mining & Drilling Series
Full spectrum of air leg drills, pneumatic jackhammers, demolition picks, and heavy electric mining tricycles
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