The SANY SR415 rotary drilling rig is a heavy-duty foundation drilling machine engineered for ultra-deep and large-diameter bored pile construction. With a maximum drilling diameter of 3000 mm and a maximum drilling depth of up to 110 m (friction Kelly bar), the SR415 is designed to handle demanding infrastructure projects such as bridges, high-rise buildings, ports, and energy foundations. Powered by a 377 kW ISUZU engine and delivering a rated output torque of 415 kN·m, the machine ensures strong penetration and consistent performance in complex soil and hard rock formations.
Featuring a reinforced big-triangle mast structure and optimized center of gravity, the SR415 provides exceptional stability under heavy load conditions. The rotary drive system operates within a 4–23 rpm speed range, combined with a crowd force of 360 kN and main winch line pull of 520 kN, enabling efficient deep pile drilling even in challenging geological layers.
The SR415 is compatible with both interlocking Kelly bars (e.g., Φ580 × 4 × 20 / Φ580 × 5 × 20 configurations) for rock drilling and friction Kelly bars (e.g., Φ580 × 6 × 19 / Φ580 × 6 × 20) for deep soil applications. This flexible configuration allows contractors to adapt the rig to varying project requirements and ground conditions.
Built for international contractors and large-scale foundation projects, the SR415 delivers high productivity, operational reliability, and optimized lifecycle cost performance.
Key Technical Specifications
| Item | Specification |
|---|---|
| Max. Drilling Diameter | 3000 mm |
| Max. Drilling Depth | Up to 110 m (friction kelly) |
| Rated Output Torque | 415 kN·m |
| Rotary Speed | 4 – 23 rpm |
| Crowd Force | 360 kN |
| Main Winch Line Pull | 520 kN |
| Engine Model | ISUZU 6WG1 |
| Engine Power | 377 kW @ 1800 rpm |
| Operating Weight | Approx. 145 t |
| Transport Width | 3600 mm |
| Transport Height | 3805 mm |
Specifications may vary depending on configuration.
Core Advantages
- Heavy-Duty Structure Design
Reinforced mast and large crawler chassis ensure stability during deep and large-diameter drilling operations. - High Torque Performance
415 kN·m rotary torque enables efficient penetration in hard rock and dense strata. - Deep Drilling Capability
Suitable for piles exceeding 100 meters, ideal for large infrastructure and bridge foundations. - Advanced Hydraulic System
Optimized power distribution improves fuel efficiency and smooth multi-function operation. - Intelligent Control System
High-resolution display with real-time monitoring enhances drilling accuracy and reduces operational risk. - Easy Maintenance & Service
Centralized lubrication system and modular design simplify daily inspection and transportation.
Why Choose Used Construction Machines?
1. Cost Savings
Used construction machines are significantly more affordable than new equipment, allowing contractors to reduce initial investment and improve return on investment. This is especially beneficial for short-term projects or companies with limited budgets.
2. Faster Availability
Used machines are usually available for immediate purchase and deployment, eliminating long manufacturing and delivery lead times. This helps contractors start projects quickly and avoid costly delays.
3. Proven Performance and Reliability
Many used construction machines have a well-documented service history and proven field performance. When properly inspected and maintained, they can deliver reliable operation comparable to new equipment at a much lower cost.