Aluminum Alloy Rolling Shutter Foaming door The simple hard fast door sets environmental protection, energy saving, sealing, high efficiency, wind resistance, durability, anti-theft in one. The new metal industrial door type with high-speed partition, the door adopts unique heat insulation structure design, featuring good heat preservation effect, light door body, high strength and fast speed. With this type of door, each time the door is opened and closed, the energy consumption of the enterprise can be saved by about 80%.
The door is widely used in industrial plants in Europe and the United States, easy to use, easy to operate, reliable, and beautiful in appearance. The product is highly reliable, practical, easy to operate and low maintenance costs, and provides a full year warranty after installation. The control system uses the new cutting-edge DSP chip in the field of industrial control as the core, ensuring that there are more than 150,000 fault-free actions per year in the application.
1) Control System
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Simple hard fast door adopts special control system, adopts servo special control box, two-phase 220-three-phase 380V-power 0.75-1.5-2.2KW, control box with main power control switch, emergency stop button, manual automatic conversion button , manually control the up and down buttons. Precise control of the opening height of the door.
[China Agricultural Machinery Industry News] Since 1978, the East German Advance Company's E281 self-propelled silage harvester has entered China. By 2014, the domestic self-propelled silage machine sales have reached, and the Chinese self-propelled silage machine has experienced 30. Years of development, and in the development of these 30 years, the high-speed development period of the self-propelled silage machine took only less than 3 years (2012-2014), during which the self-propelled silage harvester Can be described everywhere. Instantly became the darling of all small and medium-sized cattle farms. Even a machine is hard to find. The self-propelled silage machine has also changed from a small factory manufacturing to a new profit growth point for large agricultural machinery manufacturers. Can be described as a group of players.
Analysis on the development status of China's silage machine
At present, domestic self-propelled silage machines are mainly of two types:
First, reciprocating representative machine East Germany E281 silage machine
The advantage of this product: low power loss. The summer maize crops in Hebei, Shandong and Henan are harvesting fast. The characteristics of low cut (less than 10cm) are favored by the majority of silage growers, and have a large market share in Hebei, Henan and Anhui.
Disadvantages: For high-yield crops (above 3M), high-yield crops are extremely unsatisfactory in terms of operating efficiency and effectiveness. Feeding is uneven due to its special feeding structure. The sales in eastern Inner Mongolia and Xinjiang and the three eastern provinces are small. Due to the structural characteristics of the header, the cutting pattern is low, which causes the soil to enter the silage with the harvest. The Clostridium in the soil will cause the silage to deteriorate and waste. In addition, in the no-tillage corn area of ​​wheat, the wheat bran will enter the silage with the harvest, and the wheat root meal contains aflatoxin, which leads to the aflatoxin exceeding the standard.
At present, this model has been eliminated abroad and has become history.
Second, the disc type silage machine represents the model of Klass, New Holland, John Deere
The advantages of this model: the herringbone cutter is used for even cutting, the power loss of the cutter is small, and the feeding is smooth. Not affected by crop yield and height. The ground is clean and tidy after harvesting. Its unique disc design makes silage difficult to mix into the soil and wheat bran, which guarantees the quality of silage.
Disadvantages: High cutting. Domestic machine cutting is controlled at around 15cm, and foreign machines are around 20cm.
At present, this model is the mainstream model of foreign silage.
The overall market sales of self-propelled silage machines in the past 15 years has fallen sharply over the past 14 years. What is the cause of this phenomenon?
Personally think: 1) Consumers have gradually returned to rationality from the original impulse purchase. Prior to this, due to the fiery market in the silo market, the harvest profit was high, causing many purchasers to buy together. With the gradual stabilization of the market and the popularity of silage machines, many new customers have not made any money in actual business operations. Greatly reduced the desire to buy.
2) Since the beginning of 15 years, the quality requirements of silage have been increasing in large dairy farms, especially for the dry matter content of silage. Domestic silage machines have lost large market and then turned to small cattle farms and breeding. The community has caused fierce competition in harvesting prices. From the original 55 yuan / ton, down to 40 yuan / ton. Even so, there are still many customers who are faced with no work.
3) There are many domestic manufacturers of silage machines, the quality of products is uneven, the after-sales service system is not perfect, and customer rights are difficult.
4) Monopoly of imported silage machine for silage of large cattle farms.
In the past 16 years, the domestic silage machine has been upgraded. Some large manufacturers have started to upgrade the grain crushing system to meet the requirements of the cattle farm to meet the requirements of the dry matter quality of the cattle farm. However, the grain crushing system is very complicated, and the material, precision, Detection. Power and other high requirements, and must be repeated experiments to test the system's operating results and system stability. Domestically produced grain breakage systems will not be introduced to the market in at least two years.
With the support of national policies, the silo market has broad prospects for development, and opportunities and challenges coexist for manufacturers of the silo industry. The disc type silage machine will surely be the mainstream model for future development. While absorbing foreign technology, it is necessary to develop and innovate, and to firmly grasp the technology in its own hands, it is by no means a complete imitation.