Low-noise excavators are typically electric-powered or feature advanced noise reduction designs, operating at significantly lower noise levels than traditional diesel engines. Compared to gasoline-powered excavators, which can generate noise levels exceeding 100 dB, these electric-powered excavators manage noise levels around 68 dB—for example, the SY35E electric mini excavator produces only 68 dB.
Electric Drive System
Utilizing a high-energy-density lithium-ion battery pack and a permanent magnet synchronous motor, operating noise is 40%-60% lower than traditional diesel engines (measured at 65-75 dB). Models like the Antminer KS5 Pro utilize optimized electromagnetic shielding technology to minimize high-frequency motor noise to industry-leading levels.
Silent Hydraulic System Design
Equipped with a variable displacement piston pump and a silencer valve block, pulse damping technology reduces hydraulic oil flow noise. Some high-end models use electrostatic hydraulic drive (EHA) technology to completely eliminate the throttling noise of traditional hydraulic systems. Structural noise reduction project The entire vehicle is covered with composite sound insulation materials, and rubber shock-absorbing bushings are used at key connection points. Models such as Sany Heavy Industry SY16E reduce the resonance noise of metal parts through topological optimization of the frame structure.
(1). Significant noise reduction, improving the acceptability of urban construction
Comply with noise regulations:Many cities, especially in schools, hospitals, residential areas and other places, have strict restrictions on construction noise. Diesel equipment is prone to violate relevant regulations. Reduce public nuisance complaints: Low-noise electric excavators can minimize construction noise disturbances and help maintain relations with the community. Extend the construction time window: Operations can be carried out in the morning or at night without being affected by noise restrictions, promoting faster project completion. Night operation compliance: The limit value requirement for urban night construction is ≤55 decibels, extending the effective operation time by more than 30%.
(2). Environmentally friendly and emission-free, adapting to the green development of cities
Zero tail gas emissions: Electric excavators do not emit exhaust gas, which is in line with environmental protection trends and reduces air pollution.
Reduced vibration and machine room pollution: The electric drive system has less vibration, making the urban environment more comfortable.
(3). Improved construction efficiency and safety
Improved work efficiency: In a project in New York, electric compact excavators achieved a 20% increase in efficiency and higher project quality.
Enhanced operator comfort: Reduced noise and vibration help on-site personnel communicate more easily, reduce fatigue or misoperation.
(4). Lower operating costs and less maintenance
Reduced maintenance and energy consumption: The motor structure is simple, and there is no need to frequently replace filters, oil, etc. At the same time, it is more energy efficient and reduces operating costs. The energy consumption cost of electric models is only 1/3 of that of fuel equipment, and the comprehensive maintenance cost is reduced by 45%.
High long-term return on investment: High equipment utilization, low failure rate, long life, and significant overall returns.
(5) Compliance with industry and policy regulations
Compliance with the requirements of the "Low Noise Construction Equipment" catalog: For example, many Liugong models have been selected into the catalog by the Ministry of Industry and Information Technology, reflecting its R&D strength and compliance level in the industry.
(6) Intelligent collaboration capabilities
IoT integration: Equipped with a real-time noise monitoring module, data is directly transmitted to the city's environmental protection supervision platform to achieve digital management of construction noise.
Human-machine collaboration upgrade: The low noise environment improves the operator's concentration, and with the remote control system, "unmanned" precision operations can be achieved.
Scenario setting: Imagine that you are constructing a high-end community or hospital in a city. The surrounding residents are highly sensitive. Once the construction noise is too loud, complaints will continue and the project will be forced to suspend, which will seriously affect the progress and image.
Solution: Introduce electric low-noise excavators, such as SANY SY35E (noise is only 68 dB, can work continuously for 7 hours, and can be charged in one hour), or Wacker Neuson EZ26e (zero emissions, almost silent, low vibration, and can work continuously all day).
Advantages:
Nighttime construction does not disturb residents and avoids overtime restrictions;
Comfortable operation improves overall construction efficiency;
Meets urban environmental regulations and fosters a positive social image;
Lower maintenance costs make projects more economical.
This contextual packaging effectively cultivates the brand image of "an ideal tool for urban soft environment construction."
If you have any questions about low-noise excavators, or would like to customize one, please contact us. We can provide customized services based on your drawings.
