Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (2022)

Agrico centre pivots and linear irrigators for energy-efficient and optimal irrigation.

Centre pivot and linear irrigation systems

Agrico designs and manufactures a wide range of centre pivot and linear irrigators locally, in-house for farms across Africa! Our centre pivots are optimised for efficiency and designed with extensive engineering capabilities over 100 years of industry experience.

Agrico centre pivots are reliable, secure and offered at competitive prices. Learn more about Agrico’s linear and centre pivot irrigation systems.

Centre pivot systems

Linear irrigation systems

Key features of Agrico’s centre pivot irrigation systems

The Agrico centre pivot has been continuously improved since the first machine was built in 1988. As the leading manufacturer of centre pivots in South Africa, we put in the research and development required to bring you the most advanced technology in irrigation.

Click on the dots to learn more about Agrico centre pivots.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (1)

Autoflush valve to eliminate clogging

A low flow rate in the last few pipe lengths of the pivot can cause dirt to build up. The Autoflush valve eliminates the problem of clogged nozzles by flushing the machine every time the pump is started, thereby purging the dirt from the overhang.

1 of 6
  • « Previous
  • Next »

Highest quality galvanising

Agrico piping is guaranteed to have at least a 100-micron zinc layer, ensuring a piping lifespan 1.4 times as long as pipes galvanised according to regular industry standards.

2 of 6
  • « Previous
  • Next »

Many tower options

Tower structures are available in low, standard and high clearance, to accommodate all kinds of crops. Our optional windsaver towers have a longer wheelbase for windy areas, and come with a two year warranty against being blown over.

3 of 6
  • « Previous
  • Next »

Long spans save money

The optimised structure of our spans allows us to cover up to 70 m with a single span. This means fewer towers, fewer wheel tracks, fewer motors, fewer gearboxes and fewer tyres. Less maintenance. Less trouble. Lower cost. Higher yield.

4 of 6
  • « Previous
  • Next »

Electrical control system

We use only the highest quality branded switchgear. The electrical system is 100 % rust-free to limit corrosion and malfunction of the control system. A control voltage of 230 V (versus 110 V used in US machines) decreases resistive losses in the cable while improving prices and availability of parts in southern Africa.

5 of 6
  • « Previous
  • Next »

Agrico Web Control

Agrico centre pivots come with a variety of web and electro-mechanical control panel options. Our Agrico Web Control system has the ability to control multiple pumps, vary pump speed and pressure as machines are started or stopped as well as change position.

6 of 6
  • « Previous
  • Next »

Agrico's centre pivot irrigation systems

Agrico centre pivots and linear irrigators are manufactured using the highest quality and most durable materials.

We provide dedicated after-sales service to support your machine throughout its years of faithful service.

Some of the benefits of centre pivot and linear irrigation systems include a low initial cost, low labour requirement and maintenance, long lifetime and excellent uniformity of water application.

Find out more about our centre pivot irrigation systems below.

(Video) LINEAR IRRIGATION SYSTEM | Center Pivot and Lateral move irrigation system | Valley Irrigation

The Agrico G4 centre pivot

Our fourth-generation centre pivot is the result of three decades of accumulated knowledge and experience.

Designed from the ground up, we have incorporated every lesson learnt over the years to build a highly theft-resistant and sturdy irrigation machine for African conditions.

View G4 product features

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (2)

Features of the Agrico G4 centre pivot

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (3)

Resistant to theft and vandalism

The G4 centre pivot is designed to safeguard your property against theft. All cables, electrical and drive train components are either hidden or made safe. The span cable is protected within the span pipe and tubular tower legs, and a completely revised compact centre with a secure main panel enclosure prevents vandalism.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (4)

Shallow wheel track for less crop damage

The narrow built tower structure with its closely mounted wheels decreases the dead area next to the wheel track by more than 30 %. Less crop damage and dryer wheel tracks provide you with maximum yields and profitability.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (5)

Re-designed compact centre and span structure

The evenly loaded G4 structure allows spans of up to 70 m, the longest in the world. New features include centre and span joints with a corrosion-free rubber-on-plastic seal for maintenance-free operation, direct metal-on-metal contact between flanges to limit UV damage and much more.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (6)

(Video) Center Pivot and Linear Move Irrigation

Optimal nozzle spacing

A 2.5 m nozzle spacing allows excellent wetting uniformity and higher yields, even when using low-maintenance static sprinklers. A 5 m spacing option can be selected when modern dynamic sprinklers are used.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (7)

Agrico Web Control

Agrico G4 pivots are compatible with Agrico Web control, which has the ability to control multiple pumps, vary pump speed as machines are started or stopped or change pivot position, minimising energy consumption.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (8)

Compatible with LEPA

LEPA (Low Energy Precise Application) places sprinklers on a centre pivot much closer to the ground, and reduces the spacing between them to maintain irrigation uniformity. As with drip- and micro-irrigation, the water is placed directly at the root zone, greatly reducing evaporation due to strong winds and high temperatures. LEPA sprinklers operate at low pressure to save energy during irrigation.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (9)

The Agrico G3 centre pivot

Widely known for its reliability and versatility, the Agrico G3 centre pivot faithfully serves producers across the continent. Our trusted G3 offers coverage from 2 to 200 hectares and is suitable for standard, high or low clearance irrigation, as well as linear irrigation.

High-stability towers, long spans, extra-thick galvanising, rust-free control systems and Autoflush valves are standard features that distinguish Agrico pivots from the rest.

View G3 product features

Features of the Agrico G3 centre pivot

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (10)

Stable centre structure

The G3 pivot boasts a selection of centre structures. The Agrico three-legged structure is the strongest on the market, while our robust sloping-pipe centre saves costs and enables easy towing. Available in fixed and towable versions, our centre structures feature long lived seals and stainless steel electrical cable conduits, avoiding the problems associated with external collector rings.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (11)

Ultra-strong machine structure

No commercial quality steel is used in Agrico centre pivots. Pipes, flanges and angles are of 355 WA steel with a yield strength of at least 355 MPa and an ultimate tensile strength of at least 450 MPa to guarantee extra sturdiness. Other structural features include an ultra-strong rod-pocket, 16 mm flange bolts, truss rods manufactured using EN8 steel, 10 mm thick flanges and one-piece factory-welded leg assemblies, which are reinforced in high-stress areas.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (12)

Optimised span design

The high bow of the Agrico centre pivot allows for spans lengths of up to 67 m. All our machines have dedicated tower- and pivot-end pipes at the beginning and end of each span, reinforced at critical points to eliminate the buckling often seen in other pivots. We use custom software to determine the optimal pipe size from our full range of pipe diameters (101 mm, 127 mm, 165 mm and 194 mm), taking into account pivot flow, price of electricity, interest rate and payback period.

(Video) linear rainger irrigation

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (13)

Extra-thick galvanising

All piping is galvanised in-house and guaranteed to have at least a 100-micron zinc layer. The pipes of an Agrico pivot will last at least 1.4 times as long as piping galvanised according to industry standards.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (14)

Rust-free control system

We use only high-quality, branded electrical switchgear. Rust-free stainless steel main panel enclosure plus rust-free UV-stabilised, fibre-reinforced polyester tower boxes with solid stainless steel control rods ensure ultimate durability. Agrico pivots will not collapse as a result of rusted control rods, or broken age-embrittled plastic cam arms.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (15)

Compatible with LEPA

LEPA (Low Energy Precise Application) is an alteration on a center pivot where the sprinklers are placed much closer to the ground. The sprinkler package places water directly at the root zone, greatly reducing evaporation due to strong winds and high temperatures. LEPA sprinklers operate at low pressure to save energy during irrigation. Agrico has fitted around
65 000 spray plates to hundreds of pivot spans over the last years. We have perfected the arrangement of sprinklers in order to reduce the spacing and make LEPA possible.

Agrico’s linear irrigation systems

Linear irrigators move laterally up and down crop fields to provide even, widespread irrigation – optimising water usage, limiting runoff and improving crop yields. Linear irrigators are typically most suitable for fields with a long and rectangular shape, and for situations where land is the limiting factor, not water.

Agrico linear irrigators can be customised to various field sizes and provide a range of benefits for agricultural applications. Our linear irrigation systems utilise industry-leading components and offer many beneficial features.

Features of Agrico linear irrigation systems

Same durable structure

Agrico’s linear irrigation systems are built to last using the same components used in our G3 pivots, which have been honed to perfection over the last three decades. Our pipes undergo an extra thick galvanisation process to ensure they remain rust-resistant, preventing unnecessary repairs and issues.

Two and four wheel inline carts

When you order an Agrico linear machine, you can choose between a two wheel or inline-four wheel cart, which enables the system to drag a longer hose, placing hydrants further apart and saving you hours of moving and reconnecting hoses.

(Video) What Are These Circles? - How Center Pivot Irrigation Systems Work.

Simple and reliable guidance system

Linear irrigators are inherently more complex than centre pivots, since they can’t simply rotate around a fixed point. Agrico has perfected the design of our linear guidance and alignment system, keeping your machine in line and on track.

Frequently asked questions about centre pivots and linear irrigators

In order to design and install the right irrigation system, an agricultural expert needs to survey your fields and have accurate insight into your farming requirements and objectives.

Depending on these outcomes, an expert will recommend the right type of surface irrigation (like drip and micro-irrigation) or overhead irrigation system to match your exact needs.

Precise application targeted fertigation and limited surface runoff

Centre pivot irrigation systems distribute optimal volumes of water or nutritional solutions across widespread areas of land. Even application reduces the risk for nutrient losses, and the system may also be used to optimally apply herbicides and pesticides. Centre pivot systems are designed to minimise surface run-off and provide deep percolation when used to farm suitable crops.

Reduced variability

Centre pivot systems are generally 80-95% efficient in application, which is high marks compared to 50-90% for forms of surface irrigation.

Lower labour requirements

Centre pivot irrigation systems can be automated, and even paired with remote control and monitoring capabilities. This allows farmers to optimise systems remotely, and reduce the need for labour to constantly operate the equipment.

The cover of a centre pivot irrigation system largely depends on the size of your fields, as the cost per hectare for pivots and components is usually cheaper for larger systems.

Centre pivot irrigation systems are designed based on your farm’s specific requirements and may be associated with other prior preparation processes such as adjustments to your fields’ topographical composition.

Contact our Agrico sales team to provide you with a detailed quote.

The cost of a linear irrigation system is usually estimated per hectare based on the size of the farm. Linear irrigation systems are also associated with other costs, including aspects such as land preparation to ensure implementation of the system is viable.

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (16)

Linear Irrigators & Centre Pivot Irrigation Systems | Agrico (17)

Looking for centre pivot irrigation systems for sale in South Africa?

Agrico centre pivots are only one part of the Agrico total water management solution. Agrico also specialises in micro and drip irrigation systems and supplies irrigation equipment and components such as pumps, valves, pipes, filters and controllers.

Your nearest Agrico agent can form the necessary information, advice and support you will need to make informed decisions about your irrigation strategy. Get in touch with us today.

Contact us

(Video) What is a Center Pivot? Pivot 101 - Valley Irrigation

FAQs

What is the difference between a linear move and a center pivot irrigation system? ›

Linear move systems are similar in construction to center pivot systems except that, rather than rotating around a fixed end point, the entire system moves laterally across the field. They are designed primarily for use on rectangular shaped fields.

Does center pivot irrigation work? ›

Which apply water drops of the right size to maximize absorption into the soil. The center pivot

What is center pivot irrigation used for? ›

They allow farmers to irrigate crops with a fraction of the labor required by traditional methods and do it with closer control of when and how much water they applied. As a result, center pivots can efficiently water an entire field and meet the crop's irrigation needs while using less water.

How much do pivot irrigators cost? ›

Short pivots have a very high cost per acre and longer pivots cost much less. On a 1/4 mile long pivot that irrigates 126 acres the installed cost may average between $75,000.00 and $80,000.00, plus freight.

Who makes the best center pivot? ›

For more than 60 years, Valley® center pivot irrigation equipment has earned its reputation as the most trusted brand in the industry. From pivot point to last span, Valley engineers, constructs and field-tests each center pivot.

How many acres does a center pivot cover? ›

Center pivots are typically less than 500 meters (1,600 ft) in length (circle radius) with the most common size being the standard 400-meter (1⁄4 mi) machine, which covers about 50 hectares (125 acres) of land.

What is the biggest disadvantage to using center pivot irrigation? ›

It is the least expensive of the methods of irrigation. One disadvantage of center pivot irrigation system is that a circular field leaves a lot of unused space.

How long do center pivots last? ›

Myth #5: Pivots are way more expensive than other systems.

The price of a pivot may seem overwhelming at first, but investing in a pivot means you invest in an irrigation system that can last up to 25 years. Pivots are very easy to maintain.

What is one disadvantage of pivot irrigation? ›

The main disadvantage is the relatively high cost of acquisition of a center pivot irrigation system. The center pivot is just a group of sprinklers set on a motorized equipment with the aim of wetting crops while it rotates in a circular way.

How much water does a center pivot use? ›

Most center pivots are designed to be capable of applying 0.3 inches over 24 hours at 6 gpm/ac, meaning you could potentially apply just over 2 inches in a week. Two inches per week or 9 inches in a month is more than enough water to meet a crop's water use requirements in the humid East.

Does center pivot irrigation save water? ›

Only about 50% of water is absorbed using flood irrigation; the other half is lost to evaporation, runoff, infiltration of uncultivated areas and transpiration through the leaves of weeds. With center pivot irrigation, water absorption rates improve to 85-90%.

How much power does a center pivot use? ›

Pivots use both 120 and 480 volts of alternating current (VAC) to operate. 120 VAC is used as the control circuit, powering the safety circuit, the forward and reverse movement of the pivot, and, more precisely, the movement of the Last Regular Drive Unit (LRDU).

How much does a 10 acre pivot cost? ›

"A 10-acre system sells for about $7,000. That cost won't compete with wheel lines but our maintenance costs are much less because cattle won't bother it."

Is center pivot irrigation expensive? ›

Center pivot irrigation is a common technique in farming, yet it has the highest costs. Diesel alone can cost up to $25,000 yearly for 15 acre-inches per center pivot system. Farmers have enormous pressure to reduce costs and save water, but it's not easy without jeopardizing crop quality and yield.

How much does a 40 acre pivot cost? ›

40 acre Center Pivot System Example. Standard 40 acre system with end gun, installed at a cost of $38,000 with a well and power source cost of $30,000.

Who invented center pivot irrigation? ›

In the mid-20th century, Nebraska farmer Frank Zybach invented center-pivot irrigation and transformed agricultural production worldwide. Using Zybach's machine, farmers in the semi-arid regions of the Great Plains could efficiently irrigate acres at a time and thereby increase yields on previously marginal land.

What is a linear irrigation system? ›

Linears travel back and forth across your field, instead of around a central point as a center pivot does. Linears are one of the most efficient forms of farm irrigation — irrigating up to 98% of your field!

How long is a pivot span? ›

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.

How much land can a center pivot spray irrigation system irrigate? ›

Center pivots are available to irrigate from 5 to 500 ac (2 to 200 ha) although a typical machine will generally irrigate about 125 to 130 acres (50-52 ha) . Economic considerations usually limits their application to irrigated areas larger than 50 ac (20 ha).

How much does a linear irrigation system cost? ›

The cost for purchase and installation of linear move systems is typically $300 to $700 per acre. The cost per acre-foot can be estimate by dividing the estimated quantity of water conserved (acre-feet per acre) by the cost per acre of the system (dollars per acre-foot).

How efficient is pivot irrigation? ›

Highly Water Efficient

In ideal conditions, a well-designed center pivot system can have a water efficiency rate of 85 to 95%, making them more efficient than sprinkler irrigation and flood irrigation systems.

Is a irrigation system worth it? ›

The Advantages of Irrigation Systems. If you're interested in improving the overall appearance of your home, an irrigation system will be worth your investment. With a multitude of features and benefits, irrigation systems provide the correct amount of water your landscaping needs in order to thrive.

What are the benefits of irrigation? ›

Benefits of Irrigation Systems
  • Saves you water and time. Both sprinkler and drip irrigation systems can be set to daily or weekly watering, as well as timed for specific hours during day or night. ...
  • Reduces weed growth. ...
  • Improves plant growth. ...
  • Preserves soil nutrients.
21 Nov 2017

What are the advantages of having irrigation system in your farm? ›

One of the most obvious benefits of an irrigation system is protecting your yard, plants and trees from inefficient watering and drought. A well-designed system ensures that your grass and plants are getting the proper amount of water.

How many gallons a minute does a pivot use? ›

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 field irrigation system use? ›

Watering with a typical sprinkler using a standard 5/8" garden hose for one hour uses about 1,020 gallons of water; if you water three times per week, that's about 12,240 gallons per month.

How long is each section of a pivot irrigation system? ›

The most common center pivot uses a 6-inch pipe, is a quarter-mile long (1320 feet), and irrigates the circular portion (126 acres) of a quarter section (160 acres), or roughly 79% of the entire field.

Is flood irrigation better than sprinklers? ›

The irrigation efficiency of flood irrigation is around 45% to 60%, whereas sprinkler irrigation has around 65% to 80% efficiency. It's also been proven that by changing from flood irrigation to sprinkler irrigation, there has been an approximately 50% to 70% increase in the average irrigation efficiency.

What are the advantages and disadvantages of drip irrigation? ›

Advantages: Low costs and operating on very low-pressure systems, such as gravity flow drip systems fed by water from rain barrels. Disadvantages: Clogging up easily and poor water distribution uniformity compared to other emitter types.

What is manual irrigation? ›

Manual Irrigation

This a labour intensive and time-consuming system of irrigation. Here, the water is distributed through watering cans by manual labour.

What is a linear irrigation system? ›

Linears travel back and forth across your field, instead of around a central point as a center pivot does. Linears are one of the most efficient forms of farm irrigation — irrigating up to 98% of your field!

What are the advantages and disadvantages of center pivot irrigation? ›

It has a set of sprinklers used for irrigating crops. One of the main advantages of center pivot irrigation is the ability of the centre pivot to irrigate crops and ensure all year round farming. The main disadvantage is the relatively high cost of acquisition of a center pivot irrigation system.

How much does a linear irrigation system cost? ›

The cost for purchase and installation of linear move systems is typically $300 to $700 per acre. The cost per acre-foot can be estimate by dividing the estimated quantity of water conserved (acre-feet per acre) by the cost per acre of the system (dollars per acre-foot).

How do linear irrigation systems work? ›

Unlike on a pivot, each sprinkler on a linear irrigation system has the same nozzle size, so each device puts out an equal amount of water and the application rate is constant along the machine—avoiding the disproportionately high rate that can occur in the last towers of a pivot which can cause runoff.

What is irrigation used for? ›

Irrigation is the artificial application of water to the soil through various systems of tubes, pumps, and sprays. Irrigation is usually used in areas where rainfall is irregular or dry times or drought is expected. There are many types of irrigation systems, in which water is supplied to the entire field uniformly.

What are the types of irrigation? ›

The different types of irrigation include- sprinkler irrigation, surface irrigation, drip irrigation, sub-irrigation and manual irrigation.

How do lateral irrigation systems work? ›

Lateral systems are not anchored and both ends of the machine move at a constant speed up and down a paddock. Centre Pivot and Lateral Move systems require an energy source to move water from the source to the plant as well as energy to move the machine on farm.

How much water does a center pivot use? ›

Most center pivots are designed to be capable of applying 0.3 inches over 24 hours at 6 gpm/ac, meaning you could potentially apply just over 2 inches in a week. Two inches per week or 9 inches in a month is more than enough water to meet a crop's water use requirements in the humid East.

Does center pivot irrigation save water? ›

Only about 50% of water is absorbed using flood irrigation; the other half is lost to evaporation, runoff, infiltration of uncultivated areas and transpiration through the leaves of weeds. With center pivot irrigation, water absorption rates improve to 85-90%.

How long is a center pivot section? ›

System: Center pivots are mechanical irrigation systems that automatically revolve in a field to apply irrigation water through sprinklers (figure 1). The systems are typically one-quarter mile long and irrigate an area of about 130 acres.

How much electricity does a center pivot use? ›

Agricultural energy efficiency tour: replacing inefficient irrigation systems
Center PivotPumping Rate (gpm)Electricity Usage (kWh/yr)
Full Circle1,20065,099
1,05036,631
3/4 Circle1,20040,990
1,05038,297
1 more row
9 Aug 2017

How much power does a center pivot use? ›

Pivots use both 120 and 480 volts of alternating current (VAC) to operate. 120 VAC is used as the control circuit, powering the safety circuit, the forward and reverse movement of the pivot, and, more precisely, the movement of the Last Regular Drive Unit (LRDU).

How much does a 40 acre pivot cost? ›

40 acre Center Pivot System Example. Standard 40 acre system with end gun, installed at a cost of $38,000 with a well and power source cost of $30,000.

Who invented center pivot irrigation? ›

In the mid-20th century, Nebraska farmer Frank Zybach invented center-pivot irrigation and transformed agricultural production worldwide. Using Zybach's machine, farmers in the semi-arid regions of the Great Plains could efficiently irrigate acres at a time and thereby increase yields on previously marginal land.

When was center pivot irrigation invented? ›

In 1948, an innovative Nebraska farmer named Frank Zybach developed a new type of sprinkler system, the center pivot, which he patented in 1952.

How do crop irrigators work? ›

Crops are irrigated by several methods: flooding an entire field, channeling water between rows of plants, spraying water through large sprinklers, or letting water drop onto plants through holes in pipes.

Videos

1. REINKE - Lateral Move Irrigation Systems
(Reinke Irrigation)
2. Center Pivot Irrigation Systems | How It's Made
(Science Channel)
3. Building a 7 Tower Zimmatic Pivot UNDER 10 HOURS!!
(Kelby Nelson)
4. Eliminate Rutting: Pivot & Linear Irrigation
(FluidPulse)
5. Valley Irrigation Corner Pivot
(North Central Irrigation, Inc.)
6. In Focus: Center Pivot and Linear Irrigation - Valley Irrigation
(Valley Irrigation)

Top Articles

You might also like

Latest Posts

Article information

Author: Terrell Hackett

Last Updated: 11/28/2022

Views: 5632

Rating: 4.1 / 5 (52 voted)

Reviews: 83% of readers found this page helpful

Author information

Name: Terrell Hackett

Birthday: 1992-03-17

Address: Suite 453 459 Gibson Squares, East Adriane, AK 71925-5692

Phone: +21811810803470

Job: Chief Representative

Hobby: Board games, Rock climbing, Ghost hunting, Origami, Kabaddi, Mushroom hunting, Gaming

Introduction: My name is Terrell Hackett, I am a gleaming, brainy, courageous, helpful, healthy, cooperative, graceful person who loves writing and wants to share my knowledge and understanding with you.