What is Centre Pivots?
Center-pivot irrigation, also called water-wheel and circle irrigation, is a method of crop irrigation in which equipment rotates around a pivot and crops are watered with sprinklers.
Used Centre Pivots For Sale In South Africa?
According to the ARC Agricultural Engineering Institute, the capital cost of a quick-coupling movable pipe sprinkler irrigation system is between R10 000/ha and R12 000/ha, and between R11 000/ha and R13 000/ ha for a dragline irrigation system, depending on sprinkler spacing, application rate and cycle time.
How many hectares does a Centre pivot cover?
Land area: A typical center pivot system has a span of 300 to 400 meters long and irrigates 28 to 50 ha. However, they can be as short as a single-span 35 meter unit or as long as 800 meters with 18 to 20 towers irrigating approximately 200 ha.
What is the span length of a center pivot?
The distance between towers is called a span. The length of the span can vary between 130 and 200 feet. The typical pipe on the pivot has an outside diameter of 65/8 inches with a wall thickness of 0.109 inches. The pipe and the towers are typically galvanized to prevent corrosion.
How much water is needed to run a pivot?
This example shows the minimum water supply rate for a center pivot equipped with high pressure impact sprinklers should be approximately 772 gallons per minute (656/0.85). The minimum system flow rate for a center pivot with low pressure spray nozzles at truss rod height would be 690 gpm (656/0.95).
How much water does a center pivot need?
Center Pivot Irrigation Systems require a good water supply both in flow rate and total gallons for a season. If you are considering irrigating 100 acres with an average of seven inches applied during the season, you will need 19,007,800 gallons of water at about 550 gallons per minute.