Electric Rotary Piling Rig 90 kN.m Torque 45 m Depth Zero Emission for Urban Foundation Construction
The XRE-9045E electric rotary piling rig is a fully electrified foundation drilling machine engineered for zero-emission urban construction. Driven by a 90 kW high-torque electric motor on a 380 V industrial power supply, it delivers a rated output torque of 90 kN.m and a maximum drilling depth of 45 m, making it a dependable solution for cast-in-place bored piles in residential, commercial and municipal projects. Because the diesel engine is completely removed, the machine produces no exhaust gas, cuts site noise to below 70 dB and reduces energy consumption by up to 40 percent compared with conventional hydraulic rotary rigs.
A compact crawler chassis and an auto-erecting interlocking kelly bar let a single operator move, position and drill with minimal site preparation. The rig is especially suitable for night work, hospitals, schools and dense city blocks where emission, noise and vibration are tightly controlled. Every structural weld is stress-relieved and every hydraulic joint is pressure tested before shipment, so the machine holds its precision after years of continuous piling work.
Key Features
- Zero Emission Electric Drive: A 90 kW high-torque electric motor replaces the diesel engine, eliminating tailpipe emissions and allowing clean operation inside tunnels, basements and densely populated districts.
- High Torque Drilling: The 90 kN.m rated output torque drives a four-section interlocking kelly bar through stiff clay, silt and weathered rock with stable penetration rates.
- 45 m Deep Piling: A maximum drilling depth of 45 m and a 1500 mm maximum drilling diameter cover the majority of building, metro and bridge bored pile foundations.
- Low Noise Operation: Site noise stays below 70 dB, so the piling rig can work during night shifts and in noise-sensitive zones without disturbing nearby residents.
- Smart Control System: An intelligent controller supervises mast verticality, torque limit and winch tension in real time, improving pile accuracy and protecting the machine from overload.
- Robust Crawler Chassis: A wide, low-centre-of-gravity crawler chassis guarantees stability during kelly bar lifting and gives dependable traction on soft, muddy ground.
Technical Specifications
| Parameter |
Specification |
| Model |
XRE-9045E |
| Max. Drilling Depth |
45 m |
| Max. Drilling Diameter |
1500 mm |
| Rated Output Torque |
90 kN.m |
| Electric Motor Power |
90 kW |
| Power Supply |
380 V / 50 Hz |
| Rotary Speed |
8-30 rpm |
| Kelly Bar Type |
Interlocking, 4 sections x 12 m |
| Operating Weight |
48 t |
| Noise Level |
Below 70 dB |
| Emission Standard |
Zero Emission |
| Certification |
CE, ISO 9001 |
Applications
The electric rotary piling rig is built for urban foundation engineering where green construction is mandatory. It is widely used for cast-in-place bored piles in high-rise buildings, subway stations, underground garages, hospitals, schools and commercial complexes, as well as for municipal bridge piers and retaining walls.
Because it runs on grid power, the machine is an excellent choice for enclosed or semi-enclosed sites such as tunnels and basement excavations, where diesel exhaust would be dangerous and expensive to ventilate. Contractors also choose it for overnight city work because the low noise level keeps the project within local environmental regulations.
Packaging & Quality Assurance
Each piling rig is wrapped in anti-rust film, fixed on a steel frame and shipped by flat rack or container. The kelly bar, drill bucket and wearing parts are packed separately with protective covers to prevent transport damage.
The whole machine is covered by a 12-month warranty on major structural and hydraulic components. A complete set of operation and maintenance manuals, spare parts lists and commissioning videos is supplied with every unit, and our overseas engineers are available for remote online support and on-site installation guidance.
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