China's impact crusher process: conscious, self-confidence, self-improvement

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Impact crusher is a new type of high-efficiency crushing equipment characterized by small volume, simple structure, large crushing ratio, low energy consumption, large production capacity, uniform product size, and selective crushing effect. It has promising equipment; it can handle materials with lengths from 100mm to 500mm , and its compressive strength is as high as 350 MPa. It has the advantages of large crushing ratio and cubic granules after crushing.   

    History of impact crusher can be traced back to the 1850s, but the development of impact crusher relatively late in China, to 50 years in the last century, our country really has a crusher, so that our crushing and screening equipment Most were born in the 1950s . Prior to the 1980s , our domestic impact crusher was limited to handling hard materials such as coal and limestone. Until the late 1980s, our country introduced the KHD hard rock counterattack crusher. However, it has been behind overseas for more than 20 years. Domestic hard rock counterattack crusher began with its core parts plate hammer relied on imports, and localized plate hammers were listed as ministerial scientific research projects during the “Eighth Five-Year Plan” period. After the project was successful, the homemade plate hammer not only replaced imports, but also A large number of exports to Europe and the United States, Japan and other countries.

    From the development of China's counterattack crushers, we can see that during the whole process of conscious, self-confidence, and self-improvement in China's counterattack crushers, the Chinese have the courage to introduce foreign technologies and consciously learn abroad before counterattack crushers are not in Chinese assets. advanced crusher knowledge, this is our consciousness: the advent of crushing and screening equipment in the 1950s, 1980s and into the application in coal and limestone, are we crusher of confidence; and now crusher The machine got rid of the predicament of relying on imports and was able to walk out of the country. This is an excellent witness to the self-improvement of our counterattack crushers. From the conscious, self-confidence and self-improvement of our country's counterattack crushers, we saw that the Chinese nation is a nation that soars. We believe that in the near future, the Chinese nation's triumph will be heard all over the world!

High Speed Roll Up Door

Material Selection:

1. Frame: 2MM thicknesses cold-roll Stainless steel.

2. Motor: Germany SEW brake motor (outer), power 0.75KW, power supply 220V.

3. Control system: Imported Japan Mitsubishi converter and PLC to control of electric box (150%1HZ)

4. Opening & closing speed: 0.6-1.5m/s (adjustable).

5. Safety Device: Korea Photocell Sensor, emergency stopping reaction when sensing obstacles.

6. Curtain: France high-density polyester fiber and the surface coating processing, thickness 0.8MM, variety colors can be chose: Red, yellow, blue, green, orange, gray, white, transparent, etc. Tensile strength: 4000/3500N/5cm, tear strength 600/600N. Fire-proofing level: German standard DIN75200 Usage temperature: -30 ° C +70 ° C.

7. Wind resistant: The Aluminium alloy Reinforce Girder to increase wind resistant effect.

8. Curtain replacement function: Aluminium alloy Reinforce Girder is loaded between 2 pieces Curtain, can be replaced easily if any curtain broken, save your cost.

9. Transparent window: 1.2MM thickness transparent PVC window, size and location is up to your request, more safer.

10. Seal: Seal brush are Installed inside the guides, and the special bottom design, to fit any uneven ground.

11. Cotrolling way: Push button + radar sensor, very convenient.

12. Limiting Switch: Mechanical limiting switch, easily and exactly.

13. Emergency STOP: With emergency stop button on control panel, can stop easily by

Hand once disconnect or accident

14 Fault recovery function: All Hongfa's production is with fault recovery function, system will self-recovery after power cut off.

15. Delivery time: About 7 business days with contract and deposit confirmed.

16. Pyament item: 50% before production, and the other 50% before shipment.

17. Warranty Details: We provide 12 months warranty for all doors and accessories (except man-made disasters, Irresistible natural disasters, ect^).

We have many professional engineers with rich experience, qualified products, perfect service system, and good cooperation relationship with many famous companies.

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SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , http://www.hongfafrud.com