What is the emission standard of Komatsu 70-8?
4 Answers
Komatsu 70-8 complies with National III emission standard according to national regulations. Pollutant emission indicators: Pollutant emission refers to the quantity of specific pollutants discharged by pollution sources into the environment or other facilities. For designated pollutants, the emission amount equals the difference between pollutant generation quantity and reduction quantity. It serves as one of the key metrics for pollution source control in total emission management or emission permit systems. Introduction to emission limits: Permissible emission limits are quantities established by environmental authorities considering technological, economic, environmental, and managerial factors, specifying allowable pollutant discharges from sources within given periods. Both actual emissions and permissible limits constitute critical monitoring indicators for total emission control or emission permit implementation.
I've used the Komatsu PC70-8 excavator several times on construction sites, and it should meet the China III emission standards. China has quite strict emission requirements for construction machinery. The China III standard was implemented in the late 2000s, which is much cleaner than the older China II models. The machine I operated had low noise when running, and the exhaust fumes weren't as pungent, indicating decent pollutant control. However, with new regulations now reaching China IV and China V, China III machines might face restrictions in some cities, so you need to pay attention to annual inspections. If an older machine isn't well-maintained and its emission system fails, exceeding standards could lead to fines, which wouldn't be worth it. Regular checks of the exhaust pipe and filters are crucial to prevent it from becoming a pollution source. Overall, the PC70-8 China III still has demand in the second-hand market, but considering environmental concerns, upgrading sooner is advisable.
I've checked the specifications of the Komatsu PC70-8, and it complies with China National III emission standards. China's non-road machinery emission standards are categorized as National I, National II, National III, etc. National III became prevalent around 2010, primarily controlling PM particulate matter and NOx nitrogen oxide emissions. The PC70-8 is one of Komatsu's classic models, with optimized engine design, offering high efficiency and lower emissions on construction sites. If the emissions exceed the limit and fail the inspection, the machine will be scrapped. Therefore, when purchasing second-hand equipment, it's essential to check the label to confirm it meets National III standards. National III machines are still usable, but for new projects, it's advisable to choose cleaner models to align with carbon reduction policies. Everyone should develop a habit of regular maintenance, inspecting the EGR system and fuel quality, to extend the machine's lifespan while protecting the environment.
I believe the Komatsu PC70-8 meets China's National III emission standards. This level means relatively lower pollution emissions compared to older machinery, making it more environmentally friendly. However, current National IV and V standards are even stricter. As a user, I support low-emission equipment to reduce air pollution and promote greener construction practices. Always check the machine's emission level label before purchase to avoid mistakes.
