Tractors-XL-704A National IV Engine

Tractors-XL-704A

Technical Feature：

1.Choose country four treatment engine, energy saving, environmental protection, fuel saving.

2.Suspension accelerator pedal and clutch device, control more effortless, more convenient operation.

3.Increase the diesel tank to meet the needs of long working hours.

4.Flat floor design, more spacious operating space.

5.Optional cab, heating air conditioning, driving more comfortable.

6.Optimized front axle design, larger casing, smaller turning radius.

Technical Specification：

From the production and use of tractors, the main development trends of tractors are:
1. The average power continues to increase. Whether it is agricultural tractors or industrial tractors, in order to improve the operating productivity of a single machine, the average power continues to increase, but the growth rate has a downward trend. North America and the Soviet Union have a small population and a large land area, and the scale of agricultural production is large. Most of them use large agricultural machinery and are equipped with corresponding high-power tractors. In general developing countries, small and medium-power tractors are still the main ones, but their average power is also increasing.
2. Wheeled tractors have an absolute advantage in agricultural tractors. Crawler tractors are basically not used in agricultural production in many countries. In the Soviet Union, Italy and China, although some crawler tractors are still in use, their proportion is also declining. In industrial tractors, especially bulldozers, excavators and other models, crawler tractors still have an absolute advantage. With the increase in tractor power, four-wheel drive tractors have developed rapidly. The application of hydraulic steering devices can solve the steering difficulty problem of this type of machine, and articulated steering can greatly reduce the turning radius. These factors have further promoted the development of high-power four-wheel drive tractors. In order to improve the traction and adhesion performance and passing ability in paddy fields, the four-wheel drive variants of small and medium-power wheeled tractors have also achieved rapid development in Japan and other countries.
3. The safety, ease of operation and comfortable working environment of tractors are increasingly valued. Designing and manufacturing a good cab and various instruments can not only improve the working conditions of the driver and ensure safety, but also improve labor productivity and work quality.
4. The serialization, generalization and standardization of tractors and their parts are important measures to facilitate production, use, reduce manufacturing costs and simplify the supply of accessories. In order to meet the various needs of the tractor market with fewer basic models of tractors, major tractor companies in Europe and the United States produce one or several series of products. In the Soviet Union and other countries, there is a national unified tractor series spectrum to guide the development of products of various manufacturers. Developing basic tractor models and their corresponding variants with two or more power levels and certain organic connections to form a series of products can make the parts between products have the highest degree of generalization, thereby increasing the production batch of general parts; or similar parts can be produced on the same processing line, and similar parts and adjacent grades of tractors can be assembled on the same assembly line. This is very beneficial for making full use of production capacity and reducing production costs.
5. Hydraulic technology is increasingly used in tractors. In modern tractors, especially large tractors, hydraulic devices are used to operate almost all major components, such as clutch, power shift of gearbox, differential lock, brake and steering mechanism. On some tractors, hydraulic devices are also used to adjust seats and open and close glass windows. Electronic-hydraulic controlled suspension systems have been used on some tractors. Due to the convenience of operating switch layout, the hydraulic pipeline can be shortened accordingly, and this device will be more widely used on large tractors.
6. Some components of tractors are subjected to random alternating loads for a long time, which will cause fatigue damage and affect the working reliability and life of the tractor. In order to further improve product quality, large tractor companies have invested more funds and manpower to prepare part load spectra under various working conditions, organize simulation tests and stress analysis, and compile electronic computer software based on the accumulation of a large amount of experimental data for optimization design. This can not only improve product quality, but also shorten the development cycle of new products. Advanced tractor manufacturers have applied electronic computer-aided design (CAD) methods to design products. The research and application of optimization design are also increasingly valued.