Railway pile driving hammer
This device, specially designed for railway foundations, bridges, and slope protection projects, is a specialized hydraulic fixture intended to address the issue of railway track subsidence in regions with heavy rainfall. Utilizing a phased reinforcement process characterized by a sequence of 'pre-drilling, cementing, and subsequent pile driving,' it is flexibly compatible with excavators of 7.5 and 13.5 tons. By driving concrete piles to a depth of more than one meter below the rail surface, it provides existing railway tracks with permanent support against landslides and subsidence. Main features and technical specifications:
Operating mode:
Segmented combined pile driving: First, the Model 75 (410 kg) uses high-frequency vibration to create a pilot hole and facilitate concrete injection; then, the Model 135 (800 kg) applies strong impact force to drive the pile at least 1 meter below the rail surface into a stable bearing layer.
Compatible equipment:
Model 75: compatible with excavators with a lifting capacity of 6–9 tons; Model 135: compatible with excavators with a lifting capacity of 11–16 tons.
Working pressure:
110–160 bar (Model 75) / 150–170 bar (Model 135)
Impact frequency:
500–800 bpm (Model 75: High-speed drilling) / 400–700 bpm (Model 135: Powerful pile driving)
Drill bit diameter:
75 mm / 100 mm
Pile driving depth per pass:
950 mm (can be increased to over 1 meter through multiple concrete injection cycles)
Clamp opening:
330 mm (Suitable for operation in narrow sleeper spacing conditions)
Hydraulic System:
Hydraulic system with load sensing and flow range of 50–120 L/min; equipped with a damping valve block to protect the excavator boom.
Travel range:
Integrates with the excavator chassis, suitable for operation on ballasted roads, gaps between sleepers, and within standard railway track gauge limits.
Working speed:
Precise positioning speed: 0–2 km/h (stepless speed adjustment); Travel speed: depends on the excavator type (10–15 km/h).
Structural materials:
The body is made of high-strength wear-resistant steel plate; critical pins and shafts are manufactured by forging, enabling them to withstand harsh field conditions.
Derailment prevention design:
Optimized center of gravity of the entire unit, combined with a 330 mm guide rail limiter, prevents lateral sliding during operation.
Key advantages:
Stability in the rainy season: Deep reinforcement with concrete piles effectively eliminates issues such as mud erosion and ballast liquefaction in the railway trackbed.
Two-machine relay: The smaller unit creates pilot holes without causing collapse, while the larger unit delivers powerful impacts to ensure the required depth, offering superior cost-effectiveness compared to using a single bulky piece of equipment.
Low maintenance costs: The drill bit sleeve is equipped with a replaceable wear-resistant bushing, extending the overall service life of the main component.
For over a decade, Tiannuo Machinery has remained at the forefront of manufacturing equipment for railway infrastructure, earning recognition as a reliable partner for railway construction contractors and government agencies worldwide. With the launch of our specialized product series, the Railway Pile Hammer Series (Models TNTLDZJ75 and TNTLDZJ135), we continue to address critical engineering challenges such as subgrade settlement and railway track collapse caused by rain.
Unlike conventional pile-driving machines, our solution is a two-stage joint operation (pre-drilling with a 7.5-ton excavator + concrete pouring, followed by deep drilling with a 13.5-ton excavator) — a method refined over years of collaboration with railway maintenance crews. This equipment reflects our commitment to providing... innovative, durable, and cost-effective foundation solutions that reduce long-term maintenance costs. Every unit is backed by our fast delivery, comprehensive technical support, and strict quality control, ensuring that whether you are stabilizing a high-speed railway line or reinforcing a mountain pass, you can rely on Tiannuo for critical projects.
Railway pile hammer: preventing track collapse during the rainy season
Maintaining the stability of railway tracks is a global challenge, especially under increasingly frequent extreme rainfall. Conventional compaction equipment often fails to handle deep loose soil. Tiannuo Machinery introduces its specialized railway pile-driving machine, designed to operate in a two-stage coordinated mode (7.5t and 13.5t excavators), providing deep reinforced concrete pile foundations that actively prevent track settlement and lateral displacement.
Two-stage coordinated pile-driving connection for deep foundation reinforcement
Unlike standard hydraulic hammers that simply drive piles, our railway pile-driving machine employs a scientific 'Drill first, then drive' protocol, specifically designed for railway ballast and subgrade:
Pre-drilling using TNTLDZJ75: The Light Model 75 (410 kg) allows for precise pilot holes.
Concrete pouring: The holes are filled with high-strength concrete to form a load-bearing column.
Final driving with TNTLDZJ135: The Model 135 (800 kg) drives the final anchor to a depth of over 1 meter below the rail surface.
This two-stage method creates a 'concrete nail' effect, ensuring the strength of the railway track even when saturated with moisture from seasonal rains.
Technical specifications: power and precision
This hydraulic attachment turns your standard excavator into a high-precision tool for foundation installation. Key features: high-frequency impact (up to 800 bpm) to minimize soil disturbance and a <330 mm clamp opening for precise positioning near rails.
Product |
TNTLDZJ75 |
TNTLDZJ135 |
weight |
410kg |
800kg |
Pressure |
110-160bar |
150-170bar |
movement |
50-90 l/min |
80-120 l/min |
frequency |
500-800 strokes per minute |
500-700 strokes per minute |
Suitable excavator |
6-9t |
11-16t |
Drill bit diameter |
75 mm |
100 mm |
Ergonomic design and durable construction
The TNTL series features a robust appearance and... a high-strength steel housing in standard industrial yellow-black color, designed to resist abrasion from ballast stones.
Visually optimized bracket geometry This lowers the center of gravity when mounted on the excavator boom, improving operator visibility along the tracks. Hydraulic hoses are routed inside the boom to prevent snagging on overhead lines or roadside equipment, ensuring a clean and safe working space.
Technical specifications and safety
Vibration suppression: Built-in side buffers reduce the load on the excavator boom, extending the service life of machines with a lifting capacity of 7.5 and 13.5 tons.
Automatic lubrication readiness: Centralized lubrication system for the bit and bushing, reducing daily maintenance time.
Wear-resistant bushings: The 330 mm diameter clamping hole is equipped with replaceable wear-resistant plates, ensuring clamping force is maintained even after prolonged use.
Deep access: The compact design of the 75 model allows driving piles up to 950 mm deep in a single pass, placing them between closely spaced sleepers.
