A few days ago, there were pictures and videos of a group of Caterpillar excavators working in Erdos and Wuhai open-pit coal mines in Inner Mongolia. This is the first time that the fourth product of Caterpillar has been revealed. So, what's the difference between Cat's national four products and national three products? What are the unique features?
About Guosi
Every year, millions of off-road diesel engines are added in China, and the total amount of diesel consumed in China exceeds 100 million tons every year, of which about 20% is used for various off-road mobile machines. These off-road mobile machines are important sources of nitrogen oxides, and it is preliminarily estimated that more than 2 million tons of nitrogen oxides are discharged each year ...
The "National IV" emission standard, that is, the fourth stage of non-road diesel mobile machinery pollutant emission standard, is applicable to all mechanical equipment using diesel engines in the construction machinery industry. Including excavators, loaders, bulldozers, road rollers, etc.
Compared with the "National III" emission, the implementation of the "National IV" emission standard can reduce the emission of nitrogen oxides by 13%-45% and the emission of particulate matter by 50%-94%. The emission upgrade can greatly improve the pressure of construction machinery and equipment on environmental pollution; It can also strengthen the environmental protection management of old equipment and speed up the update iteration of construction machinery and equipment. The benefits are obvious.
According to the requirements of the Ministry of Ecology and Environment, since December 1, 2022, all production, import and sales of off-road mobile machinery below 560kW (including 560kW) and its diesel engines should meet the emission requirements of the fourth country. From now on, all OEMs and agents will no longer be able to sell new Guosan equipment below 560kW (including 560kW).
In response to the call of the state, various engine manufacturers and engine manufacturers have recently launched their own national four products, and some manufacturers even started the sales of national four products in advance. Different from most manufacturers, Caterpillar is quite low-key in the introduction and promotion of the fourth national product. This time, the photos of Caterpillar's testing for the fourth national product show its consistent style, and at the same time, it also shows a responsible enterprise's attitude towards customers, which makes the outside world full of conjecture and expectation for the fourth national product of Caterpillar.
Four characteristics, Caterpillar's national four products are occasionally outstanding.
According to the insiders, Cat Guosi products have the advantages of being strong, fuel-efficient, reliable, efficient and convenient to maintain, etc. Although they are not much different from Guosan products in appearance, they actually have their own unique features:
First, it is easy to identify. "NR4" nameplate marks are added to the model names of all four national products to show the distinction.
Second, it is easy to use. The purpose of adding urea to national equipment is to reduce the emission of nitrogen oxides, so as to achieve the purpose of environmental protection. The urea tank is located in the tool box, which is convenient for users to add diesel oil and urea solution at the same time.
Third, high attendance rate. By adopting special technical means, the tail gas after-treatment device can realize DPF regeneration, i.e., non-inductive regeneration, without special shutdown, so as to maximize the attendance time of the machine. More importantly, it can effectively reduce the maintenance cost of customers.
Fourth, safety is good. Caterpillar has added a new indicator light to the models that use urea for vehicles.
Since Europe and America entered the four-stage emission in 2007, Caterpillar has accumulated rich experience in low-emission applications. At present, there are more than hundreds of thousands of off-road equipment equipped with after-treatment system engines running in the field all over the world, and the emission reduction of nitrogen oxides and soot particles has accumulated over hundreds of millions of operating hours, which makes Caterpillar products constantly improved in practice and become more stable and reliable. It can be seen that Caterpillar has a deep foundation in the development and market verification of the fourth national product.
The revelation of this photo and video shows that Caterpillar is fully prepared to deal with the emission upgrade of non-road country IV, and a new generation of Caterpillar National IV products will be officially put on the market soon. Let's look forward to the arrival of the final announcement of Caterpillar National Four Products.
