Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. Technical Features of Rainfine Center Pivot

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. 1. Basic dates The Specification of the Rainfine Centre Pivot Items Pivot length Land covered Span length choice Span dia. Span thickness Pivot clearance Pivot Height Hot dip galvanization Flow rate Water pressure at 1~7.5 Bar pivot base 14.9x24 tubeless tire with hot dip Friction Loss Tire galvanized 8x24 rim irrigation special Nelson / Senninger Flex 5.5-ft drops 33rpm (full loaded ) at 380V.3/4HP 40:1 Gear motor Ratio. Over-heating protection Control panel Irrigation Hours/Day Power supply Pressure gage Daily application...

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. 2. Manufacturing 2.1 Truss design Truss design is the most important parts on pivot irrigation system. The structural mechanics are precise calculated by computer and tested in tough road. It can stand 20 years long lasting work without any bending or breakings. The quality of the truss structure can’t be judged by eyes of the people but by the longer life of working in field.

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. All welded steel parts are international standards and conform to high performance and durability. The high yield strength overhang cable is used in longer overhang. This design can help farmers to increase yield with less investment.

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. Rainfine 500 meters towable pivot in Kazakhstan is used in 3 different fields and is designed to tow every one or two weeks in 400mm high potato fields . After 4 years working, the structures and truss rods have no any distortion 2.2 Truss rod Truss rods are the key parts for holding the total weight of the pivot like the bridge sling. The way of processing is very important because if the processing is not correct, the truss rods would be broken when the pivot is working and cause the falling down of the complete...

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. When the rod being cut as the picture below , you can find that the steel rod and the headed part are exactly the same Molecular. The quality standard is that this truss rod can stand 60,000psi yield strength. We use 22mm diameter rods instead of 19mm to make it stronger than American manufacturers. （Truss rods after galvanized

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. 2.3 Galvanizing process Hot dip galvanized structures with 141 / 168 / 203mm diameters: All the steel parts are galvanized by hot dip galvanization in the top leading galvanizing plant in China. The thickness is 2.0 – 2.5 mil, which is the US galvanization standards of pivot manufacture ASTM A123/123m-02.

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. （parts after galvanized） 2.4 weldmen

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. We used automatically controlled welding Robot to do the welding for pipes to ensure the quality. (The welding line is perfect quality for the span pipe welded by Robot .)

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. （Welded span joint） （welded drive tube） 2.5 Quality mould is used for all the spare parts （tower box、gasket、drive tube protection tube,

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. （Rubber seals） （collector ring）

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. We introduce F drill technology from Germany and use it in our pipe drill processing system. This technology can help the gooseneck to have a maximum connection to the pipe outlet holes and reduce the gooseneck damages during the sprinklers vibrating

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. （Picture 1、2 ,section of the pipe hole） (Picture 3, automatic f drill holes ，3 holes are in the strength

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. 3. Design feature 3.1 pivot joints This hard but flexible joint design can support all the strength of the pivot and maximum the flexibility of the pivot joint in case that the pivot system can walk properly in waving land.

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. This aluminum coupler can be broken when the spans are not in proper alignment. This will cause the water leak and the water pressure loses. The control panel will switch off the system when the water pressure is low and stop the machine. This is a good design to protect the system being damaged when no people keep eyes on the machine. The rubber boots inside the aluminum couplers can help to reduce the water friction and resistance and reduce the electric power consumptions.

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. 3.2 Rainfine Heavy duty gearbox: special designed for Sudan market where the pivot can be used 300 days per year. The gearboxes we use: a. The worm consists of high strength forged steel with a Brinell hardness of 210 while the worm gear is manufactured from ductile cast iron with a relatively wide variation of hardness. This is totally different from other manufacturers who make it by grey pig iron. b. c. The worm and gear pressure angle have been designed at 14-1/2 degrees. This angle was selected based upon review...

Technical Features of Rainfine Center Pivot and Lateral Move Irrigation System. 3.3 High quality electric cables All our cables are standard shield to withstand infrared and ultraviolet emission. Safety circuit is considered. Our electric cables are: - 4# 14 gauge, 6# 18 gauge - 4# 12 gauge, 6# 14 gauge - 4# 10 gauge, 6# 14gauge - Inner PVC cover 30 mm thick - 8 mil aluminum shield - Outer high-density polyethylene cover is 15 mm thick - Sunlight resistant - Moisture and dirt protection