Tag: Agrifac

  • Agrifac Launch – Endurance II is a High Tech Offensive

    Agrifac Launch – Endurance II is a High Tech Offensive

    Agrifac shunned the Agritechnica show last year, choosing instead to introduce its latest Condor Endurance II alongside a wide range of high-tech controls at the opening of its new factory at Steenwijk, in The Netherlands.

    Booms up to 80m wide can be tested in the new 14,000m² factory, which Agrifac has constructed on its existing site at Steenwijk in the Netherlands.
    Booms up to 80m wide can be tested in the new 14,000m² factory, which Agrifac has constructed on its existing site at Steenwijk in the Netherlands.

    Agrifac has seen quite remarkable growth in recent years, no doubt the result of investment from its owner – the sprayer specialist group, Exel Industries – which bought the struggling manufacturer in 2012.

    Since then, sales of self-propelled sprayers have rocketed – from 20/year in 2008 to more than 200 today. The new factory is currently building a machine a day and Agrifac is now looking to boost sales further by expanding operations in Australia, North America as well as central and eastern Europe.

    Sales of Agrifac self-propelled sprayers have risen from 20/year in 2008 to more than 200 today. Its new factory has the capacity to build one machine every day.
    Sales of Agrifac self-propelled sprayers have risen from 20/year in 2008 to more than 200 today. Its new factory has the capacity to build one machine every day.

    Indeed the impressive new, architect designed factory is set-up to test booms up to 80m (~262 ft) wide, which is a massive jump from its current 52m (~170 ft) maximum. Unsurprisingly it’s looking at carbon fibre to reach these widths.

    While not launched officially, Agrifac made no secret of this at the open day, showing a ‘hybrid’ with carbon fibre outer sections fitted to the existing steel one. While there are few details about this prototype, it uses a lattice-work construction, with the nozzles mounted at the top of a triangle.

    Targeting greater precision

    Under the banner of ‘Need Farming’ Agrifac is promoting a range of systems to apply products with ultimate precision. Top of the technology tree is AiCPlus, which identifies individual plants and applies a specifically-tailored product rate – on the move.

    By the way, Agrifac explains AiC is pronounced ‘I See’, with the AI an abbreviation of Artificial Intelligence.

    Cameras, mounted along the boom, scan 3m (~10 ft) wide bands of crop in ‘real time’ and, use special software algorithms to interpret what they detect. This could be individual weeds, diseases or pest damage.

    Ultimate spraying precision and control delivered by AiCPlus, which uses boom-mounted sensors to identify areas down to 50cm and deliver targeted treatments with single nozzle accuracy.
    Ultimate spraying precision and control delivered by AiCPlus, which uses boom-mounted sensors to identify areas down to 50cm and deliver targeted treatments with single nozzle accuracy.

    Applications are targeted using control to single nozzles, which are operated by Pulse Width Modulation (PWM). This enables the nozzles to be turned on/off at up to 100 times/sec, allowing the system to not only vary and apply the dose for the target, but also maintain the correct droplet size for the product.

    Solenoid valves switch nozzles on/off up to 100 times/sec and maintain the application rate without changing pressure. The system also reduces flow to the inner nozzles and increases it to the outside automatically during turns.
    Solenoid valves switch nozzles on/off up to 100 times/sec and maintain the application rate without changing pressure. The system also reduces flow to the inner nozzles and increases it to the outside automatically during turns.

    To accomplish this degree of precision application, Agrifac has introduced a range of other new technology. Along with the sensors and single control there is another new system, DynamicDosePlus (here’s a smartphone video), which implements control down to a resolution of a single nozzle.

    Pesticide rates, rather than just the total application volume, are changed on the move using SmartDosePlus. And to ensure products are applied accurately there is StrictSprayPlus, which includes turn compensation.

    Precise prescription maps

    For precise applications, without using AiCPlus on the move sensing, Agrifac has developed DynamicDosePlus. This, it claims, is the first system to create application plans to one nozzle precision.

    As well as planning applications it also executes the operations, not only controlling applications, turning nozzles on/off, but also varying the pesticide rate between 0-100%. To do this AiCPlus requires high precision prescription maps.

    Agrifac has developed a completely new high resolution system for creating prescription maps and executing the instructions on machines equipped with single nozzle control.
    Agrifac has developed a completely new high resolution system for creating prescription maps and executing the instructions on machines equipped with single nozzle control.

    Mixing on the move

    With AiCPlus varying pesticide rates on the move and to one-nozzle precision, Agrifac says it is difficult, or even impossible, to predict the chemical concentration required before application.

    To overcome this, it has developed its SmartDosePlus direct injection system. Just clean water is held in the spray tank with the concentrated chemical stored separately. According to required pesticide rates detected by the sensors or stored on the map, the system’s software then meters the precise quantity of active required for the specific area and mixes it ahead of the boom.

    The valve system and full boom circulation and priming ensures each nozzle receives the correct mix. It also doesn’t matter how many nozzles are in operation at the time.

    It also enables other active ingredients to be added to treat certain areas and turned off when the patch is passed. Similarly, pesticide rates can be reduced dramatically or even stopped completely in environmentally sensitive areas.

    Another big advantage of carrying just clean water in the tank, adds Agrifac, is it significantly cuts cleaning time and the amount of washings. This not only speeds up turnarounds between products, but can also help reduce the risk of cross contamination when working in sensitive crops.

    The right rate and droplet size

    As well as single nozzle control, StrictSprayPlus also provides application volume control that is unrelated to pressure, which maintains the droplet size regardless of changes in forward speed or pressure.

    Automatic controllers normally set the application volume, according to speed by varying the pressure. In most cases as speed rises the droplet size reduces, increasing the risk of drift. As the pressure falls the droplets get larger and this may have adverse effect on efficacy.

    Pulse Width Modulation overcomes this by using solenoids to turn the flow to the nozzle on/off up to 100 times/sec to maintain the correct application volume. The pressure is unaltered, so the droplet size remains the same.

    StrictSprayPlus nozzle control also delivers turn compensation – to maintain the correct application volume when spraying around corners. As the sprayer turns the nozzles on tip of the outside boom move considerably faster than those on the inside of the turn.

    With a fixed application volume, this results in under-dosing on the outside and overdosing on the inside. Agrifac says its system detects the speed differences and calculates the rate required for each nozzle across the boom.

    But, experts warn, it’s important to note that PWM currently does not work with many of the popular Air-Inclusion (AI) nozzles in use today.

    On the level

    Regardless of the other technology on board, setting and maintaining the best boom height is crucial to maintaining spray efficacy and cutting drift.

    For its new StrictHeightPlus auto-boom height control, which works in conjunction with the BalancePlus and variable geometry on its J Boom, Agrifac has developed new ‘wide view’ sensors.

    Three sensors are fitted into four separate clusters, mounted across the boom that, it adds, scan a wider area than other systems. This is said to provide a better overview of the crop as well as help to distinguish between irregularities, misses and tramlines, which can affect performance.

    A new auto-boom height control system, developed in house, uses three sensors in a cluster to scan a wider crop area. Four clusters are used on the boom.
    A new auto-boom height control system, developed in house, uses three sensors in a cluster to scan a wider crop area. Four clusters are used on the boom.

    The system is also now fully integrated into the firm’s own EcoTronic terminal, eliminating the need for another box in the cab.

    More power and control for Endurance II

    The Endurance II is powered by a 420hp engine and is equipped with a new, advanced control panel and joystick.

    The sleek new EcoTronicPlus II joystick and touch-pad clusters commonly used controls into areas, providing finger-tip control of operations.
    The sleek new EcoTronicPlus II joystick and touch-pad clusters commonly used controls into areas, providing finger-tip control of operations.

    While the manufacturer sticks with the Claas Vista cab, inside operators will find a sleek new, modern control panel. Called EcoTronicPlus II, it is designed solely for use on a sprayer and incorporates a stylish joystick ahead of the armrest pad, which is surrounded by touch buttons.

    These are accompanied by a single touch-screen, which is used for both the sprayer and the GPS-controlled equipment, such as section control, mapping and even road navigation. The screen changes automatically to display only information that is required for the current operation.

    Elsewhere the Endurance II retains familiar equipment such as the existing StabiloPlus chassis, GreenFlowPlus multi-stage centrifugal pump and spray system as well as the 8,000 litre (~2,110 gal.) capacity tank and booms from 24m (~80 ft) to 55m (~180 ft).

    Be sure to check out Pro Operator Magazine’s Facebook page and stay tuned for their new website!

  • Agrifac Condor: A Wake-up Call For North American Sprayer Manufacturers?

    Agrifac Condor: A Wake-up Call For North American Sprayer Manufacturers?

    agrifac-condor-endurance
    Agrifac Condor Endurance (Source: Agrifac)

    I like good ideas.  And at Canada’s Outdoor Farm Show in Woodstock this fall, I saw a sprayer that puts a lot of them in one place.  I’m talking about the Agrifac Condor Endurance.  I’ve seen European sprayers before, even operated a few.  And although they are all well-engineered machines, the Netherlands-based Condor might be the first one to gain traction in North America. Why this one? Let me explain.


    Size:
      If you thought European machines are too small for North American conditions, this one breaks the mold.  Sporting an 8000 L (2100 US gal) tank, track widths up to 4.6 m (15 ft), a 320 hp Tier 4 engine, and booms up to 55 m (180 ft) wide, it’s a monster. The smaller Condor offers tank sizes of 1050 or 1300 US gal and is a smaller machine overall.

    Agrifact Condor Sump
    The tank sump design ensures minimal remainders.

    Tank and Pump:  The large tank has a molded funnel sump that feeds directly into the pump.  Net result is a design that empties the tank completely, leaving a tiny remainder amount, less than 2 gallons according to Rob Blijdorp, with Agrifac North America.  Because most of us clean tank remainders by diluting them with clean water, this small remainder needs less water to dilute residues to safe levels, saving time when switching products.  The machine is equipped with a Hypro centrifugal pump as standard equipment in North America. A diaphragm pump is optional. This pump type is unusual for North America, but it is self-priming, can run dry, and can produce very high pressures.

    Agrifac Condor Boom
    Wide booms with recirculating plumbing boost productivity and minimize waste (Source: Agrifac)

    Boom: The boom widths available on the Condor are astounding, and there’s no easier place to use them than the North American Great Plains.  Wider booms are one of the most effective efficiency boosts in spraying, and allow slower travel speeds while creating fewer tracks.  The Condor boom has a recirculating design with a pressure feed from both ends, eliminating boom ends and increasing cleanout speed.  Since it uses the boom as part of its circulation system, the boom primes at filling so the new product is at the nozzles right away. Sectional control is flexible, with nozzle-by-nozzle control available.

    Agrifac Condor 4-wheel steer
    Four wheel steer on a walking beam chassis

    Chassis:  The frame and suspension system looks like a walking-beam setup, and is claimed to give a smoother ride with less transfer of bumps to the boom. The system has four-wheel steer capability for less tracking in turns, and a tight turning radius. The weight of the smaller Condor machine equipped with a 120’ boom is 24,500 lbs, the Condor Endurance with the same boom is 31,000 lbs.

    HighTechAirPlus nozzle
    The HighTechAirPlus atomizer is a twin fluid design that uses air to control flow and atomization.

    Nozzles: I saved the best for last.  Since 1989 (yes, I remember the year!), I’ve been a fan of “twin fluid” nozzles, but have not seen them take hold anywhere.  The HighTechAirPlus nozzles are Agrifac’s version.  Here’s how they work:  Liquid is delivered to the nozzle in the usual way, by pressure.  But air is also delivered, created by a dedicated air pump that has modest volume and pressure requirements.  Both air and liquid make their way through the same nozzle (a deflector style, similar to the TeeJet FloodJet).

    HighTechAirPlus
    HighTechAirPlus installed. Note the air supply and the air-activated shutoff for individual nozzle sectional control.

    The advantage?  Liquid flow and droplet size can be adjusted independently, with air and liquid pressure.  More air results in lower liquid flow. It also reduces droplet size.  More liquid pressure increases flow, and also reduces droplet size.  Clever combinations of both can keep droplet size fairly constant over a wide flow rate range.  Alternatively, the nozzles can change droplet size while keeping the same flow rate, depending on the drift or coverage needs at the time. The travel speed range achievable is similar to that with PWM.

    Verdict.  The jury’s out.  As a newcomer to North America, the Agrifac faces a few challenges.  Many say it needs a dealer network, inventory and parts.  It needs to prove its reliability. It needs to be able to service its machines, especially if parts are non-standard.  It needs field cred out here.

    But I’m a bit tired of our North American sprayers adding horsepower, speed, and weight to their sprayers each year, and little else.  They leave applicators to struggle alone with equally important productivity factors such as quick and thorough cleanout, drift management, nozzle selection and others.

    The things that strike me with this new sprayer are Agrifac’s innovative design, and its emphasis on issues that matter to applicators:  productivity and excellent control over application rate and droplet size. The company has the right priorities in my books.