Regarding Guosi Agricultural Machinery, users express strong willingness

Recently, we conducted a small survey titled "Is Your National Fourth Agricultural Machinery Effective. The survey results are now summarized as follows.

Investigation on the Purchase of National Fourth Agricultural Machinery

Among the users participating in this survey, 69% said they have purchased Guosi Agricultural Machinery, while 31% said they have not purchased Guosi Agricultural Machinery. In May, a survey specifically targeting agricultural machinery cooperatives found that the purchase proportion was 46.49%. The high proportion of purchases this time may be related to different channels for survey release and different groups of participants. This small survey was conducted after the analysis article related to National Fourth Agricultural Machinery, and the active participants may be mainly National Fourth Users. However, the previous survey was conducted in the form of community promotion, and the promotion coverage group was agricultural machinery cooperatives.

Investigation on the Use of Agricultural Machinery in the Fourth National Year

Recently, China's fourth agricultural machinery has attracted much attention and has been repeatedly roast. So what is the most frustrating thing for users? This survey shows that the number of people who choose "high failure rate" is the highest, accounting for 31%. The three factors of "high price", "frequent regeneration", "fuel consumption, urea consumption, and cost" tied for second place, with 19% of participants choosing each. Another 6% of users have chosen 'after-sales service needs improvement', and currently no users have expressed that using it in the fourth year is' quite comfortable '.

Regarding Guosi Agricultural Machinery, the user would also like to say

In previous surveys, the probability of users filling in 'none' was relatively high for questions related to opinions and suggestions. There are obvious differences in this survey, as all users have filled in specific questions and suggestions, and not a single user has filled in 'none'. From this, it can be seen that users have a strong willingness to express their opinions on the fourth national agricultural machinery. After organizing, we found that the areas that users want to talk about are mainly: why some foreign large tractors can use no urea, waste time in regeneration treatment, high fuel consumption, not as good power as before, high prices, low subsidies, suggestions to subsidize agricultural machinery operation, high oil requirements, high failure rate, maintenance time, and the current maintenance personnel in the county cannot repair the National Fourth Agricultural Machinery.

We have integrated previous data on the issues that users are concerned about to analyze the causes of the problems for everyone.

1. Why do some companies not add urea to their high-power tractors?

There are two main Technology roadmap for the national four level upgrade, one needs to add urea, and the other does not need to add urea. Route 1: DOC (oxidation catalyst)+DPF (diesel particulate filter)+EGR (exhaust gas recirculation system). Route 2: DOC (oxidation catalyst)+DPF (diesel particulate trap)+SCR (selective catalytic reduction technology, commonly known as urea addition).

Industry insiders have stated that choosing Exhaust Gas Recirculation (EGR) means higher fuel consumption and shorter regeneration cycle of Particle Trap (DPF), which means higher usage costs; When choosing the SCR strategy, one should consider the cost of urea consumption and the losses caused by urea quality.

2. Why does it regenerate frequently?

The DPF (diesel particulate filter) component in the fourth product of China, located behind the DOC (oxidation catalyst) component, can filter and capture carbon smoke emissions and ash before entering the atmosphere, reducing particulate matter emissions from exhaust emissions. When the DPF components capture carbon smoke emissions, they undergo oxidative digestion (conversion into gas CO2), which is known as DPF regeneration. However, DPF is unable to oxidize and digest the captured ash. Excessive ash capture can lead to an increase in engine back pressure and frequent regeneration, requiring the removal of DPF for mechanical cleaning.

The carbon smoke emissions captured by DPF are products of diesel combustion. The poorer the quality of diesel, the higher the amount of impurities and carbides it contains. The exhaust emissions may also contain more particulate matter, which naturally leads to frequent regeneration.

So where does the ash captured by DPF come from? The main source is engine oil, and the higher the ash content in the used engine oil, the higher the ash content in the exhaust gas, thereby shortening the mechanical cleaning cycle of DPF. Currently, except for CJ-4 or higher quality grade engine oils that have ash content specified and are set below 1%, other low-quality grade engine oils are not specified.

3. Do you feel that the fourth engine lacks power?

One important reason for the insufficient power of the fourth national agricultural machinery may be due to the limited torque of the agricultural machinery, which means that the engine torque output is limited and the power is limited. After the torque is limited, the driver's most intuitive feeling is that the agricultural machinery is not strong.

The faults that cause torque limitation in agricultural machinery are divided into two categories: emission related faults and protection related faults. The main emission related faults include: low urea level, urea concentration fault, tampering fault such as sensor or actuator removal, urea injection interruption fault, EGR valve related fault, DPF system blockage, failure, removal fault, PCD system failure fault.

It is a requirement of the fourth national regulation that emission related faults occur, causing agricultural machinery to limit torque. When emission related faults occur, the driver alarm system and limit system must be activated according to regulations. If the pollutant emission monitoring items of agricultural machinery are not compliant, an alarm message will first be displayed on the mechanical dashboard. Some machinery will also inform users of the reason for the alarm in text form, and will tell users how many hours later, the restriction system will be triggered and to what extent. In the absence of timely handling of relevant alarms, the engine will be limited in torque, and some faults require professional personnel to conduct comprehensive testing and troubleshooting of the equipment before it can be used normally. After the fault is repaired and the system detects no errors, the torque limit can be lifted.

4. The subsidy for purchasing agricultural machinery is low, it is recommended to change it to agricultural machinery operation subsidy

At present, 5 regions are piloting agricultural machinery operation subsidies, specifically named "Agricultural Machinery Purchase and Application Subsidy". The pilot provinces and regions include Xinjiang, Hunan, Hebei, Xinjiang Production and Construction Corps, and Heilongjiang Agricultural Reclamation Area. It is understood that in these five pilot areas, the current implementation method is mainly to select pilot counties within the province (region) to implement agricultural machinery application subsidies for some self powered machinery (Rice transplanter, harvester, tractor, etc.). The subsidy standard is 90% of the subsidy amount in the first year, 10% in the second year, and 8% in the third and fourth years, respectively, after reaching the established annual operating area standard. Under the condition that the operating area meets the standard every year, a total of 116% of the subsidy amount can be received for four years, which is 16% higher than the subsidy amount for purchasing agricultural machinery. For details, please refer to the "Pilot Scheme of Subsidy for Agricultural Machinery Purchase and Application in Xinjiang in 2022".