Faster Fills, Safer Mixes: Why the Handler IV Belongs on Your Spray Rig
- 5 days ago
- 3 min read
If you've ever stood beside a sprayer waiting on a slow fill, measuring, pouring, rinsing containers by hand while the spray window closes in around you, you already know why chemical induction systems exist. For Australian broadacre operations covering big country across the wheatbelt and beyond, the Handler IV is one of the most capable systems on the market for getting the job done quickly, safely, and without waste.
Available in multiple models and packed with innovative features, The Handler has proven its reliability on farms across 23 countries, and Burando Hill is proud to be its exclusive Australian importer, bringing this proven system to growers here at home.

What the Handler IV Actually Does
The Handler IV is the largest and most powerful unit in the Handler range, built for operations that need serious liquid volume and serious agitation. With an 870L tank, twin agitation lines, and a closed-loop recirculation system, it's designed to have your chemical fully mixed and ready to go before your sprayer even gets back to the fill site.
That's the standout feature for anyone chasing a narrow spray window: bulk chemical can be inducted straight into the Handler IV tank independently of the sprayer, using a dual-inlet venturi. Whether you're working through large volumes of liquid pesticide or dissolving dry flowables, the tank does the hard work in the background, so fill time becomes a formality, not a bottleneck, and the sprayer spends more time in the paddock and less time parked up at the fill site.
Two Models, Two Jobs
The Handler IV comes standard with venturi induction across the range, and the model choice comes down to how much fill speed and agitation grunt your operation needs:
H43P65V: The standard configuration, running the dual-inlet venturi setup and ideal for operations moving high volumes of liquid chemical or dry flowables that need thorough agitation.
H43P13V (13hp): The step up, built for superior agitation and faster fill. It pairs the same 870L tank with a 3" polypropylene pump capable of 1,325 LPM bypass rates, the fastest fill speeds in the Handler IV line, backed by a Honda GX390 engine with electric start.
The Details That Matter On-Farm
A few features carry across the range and are worth knowing about:
The Knife - the integrated knife system makes handling bags of granules, sulphate of ammonia, and other powdered products faster, easier, and safer at ground level. Product is introduced directly into circulating water for fast, thorough mixing with virtually no air introduced, greatly reducing foaming.
The Venturi - draws chemical from the tank into the sprayer while bypassing the pump entirely, which means no cross-contamination between products and a continuous flush between mixes.
Lockable, hinged lids and a 4-way fork liftable steel frame mean the unit is as practical to move between paddocks or sheds as it is to operate.
Less Air, Less Foam, Fewer Headaches
One of the key advantages of mixing chemical through a Handler rather than a sprayer-mounted induction hopper is the reduction in air introduced into the solution. Less air means significantly less foaming, a common problem that can prevent the sprayer from being filled to its full capacity, disrupt the intended chemical rate, and reduce the number of hectares covered per tank. Excessive foam can also overflow during filling, wasting chemical and creating unnecessary mess around the mixing site.
Built for High-Performance Mixing
Under the hood, the Handler range runs on 6.5hp or 13hp Honda engines paired with a Banjo pump, delivering powerful agitation with venturi induction to get chemical properly mixed rather than just moved from A to B. Rotacraft high-capacity tank rinse nozzles make quick work of rinsing the tank between fills, preventing cross-contamination between different chemical products.
Customise It to Your Operation
Every farm mixes differently, which is why the Handler range can be configured with custom options to suit your setup, including:
Bypass
Drum rinse
Venturi manifold
Drum probe and metering system
Whether you're after a straightforward fill-and-go unit or a fully kitted-out system tailored to your chemical program, there's a Handler configuration to match.
Why It's Worth the Conversation for Aussie Growers
For operations juggling tight spray windows, variable weather, multiple chemical types, and the constant pressure to keep machinery moving during seeding and spray season, a system like the Handler IV isn't just about convenience, it's about precision, safety, and getting more done in the hours you've actually got. Less time mixing by hand means less chemical handling risk for the operator, more accurate rates across big acreages, and a sprayer that's back in the paddock faster when conditions are right.
If bulk induction and faster turnaround are on your radar for the season ahead, it's worth talking through which Handler IV configuration fits your setup best.
Get in touch with the Burando Hill team to find out more.




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