Test: Nevada MB200 Tridem

The Nevada MB 200 Tridem test machine proves its worth as a valuable all-round machine

There has never been a more important time for effectively and efficiently managing effluent on farm. With fertiliser costs, along with everything else, rising dramatically, farmers need to do everything they can to maximise any nutrients possible going onto their pasture. And when these nutrients are already being produced on farm, investing in a machine to spread and manage effluent starts to become increasingly sensible. With this in mind, it seemed like an opportune time to take a closer look at the Nevada MB200 Tridem tanker.

Looking good with galvanised finish to protect against corrosion

With a roadie on the cards, I was up well before the sun for a trip from Matamata to Taranaki to see the Nevada Tridem in action. It’s been a while since I’ve been to Taranaki, or “Taradise” as our old Farm Trader mate Jaiden Drought used to refer to the region. Taranaki also happens to be Nevada’s home turf, based in Hawera.

To see the Tridem working, we headed south to Ross and Blake Clark’s dairy farm where the new Nevada MB200 Tridem is currently operating. Until purchasing the new Nevada tanker Ross had just relied on travelling irrigators to manage effluent.

Having installed a new lined pond on one property with a Nevada electric stirrer, the pond is down to the bottom third and starting to get a bit thick for the travelling irrigators to handle. So, the addition of the Nevada Tridem made a lot of sense, particularly with two properties to service. The thicker effluent has proved no problem for the Nevada tanker at filling time, particularly with the turbo-fill arm in action. Although it seemed to take a little while to get going initially, I was impressed with a fill time of under four minutes to fill the 20,000-litre tank. Time-filling, I think will be similar to spreading time. Operation is straightforward, thanks to the easy-to-use electronic remote. The arm valve for spreading and steering axle lock are all controlled by the remote.


Ross and Blake have found spreading at four to six kilometres per hour achieves the desired application volume per hectare. The Rainwave™ spreader is designed to apply between one and 10mm at less than seven kilometres per hour, easy on the tractor, driver, and tanker in rough paddocks.

The dual Rainwave applicator is standard equipment on the Nevada Tridem tankers (single Rainwave on single and tandem axle models). I would estimate spread width between 10 and 12 metres with the dual version. The growing cost of fertiliser makes it more important than ever to get the best out of nutrients.

Due to the cost of hydrant systems, traditionally, a lot of these nutrients have been used over a portion of the farm. The efficiency offered by the Nevada MB200 allows for spreading over the whole farm, wherever the nutrients are needed most.

Quality Italian pump, all cables and wires up well clear of the PTO shaft

Along with the farm we were on for test day, Ross has another property up near the mountain with 600 cows. Consistent rainfall here is guaranteed – and a lot of it – to manage this, they have herd homes to save damaging pasture and wasting feed. Feeding maize and silage at the herd home, cow waste is collected in the bunkers beneath. Until purchasing the new Nevada tanker, cleaning out the bunker involved lifting out all of the concrete slats to get a machine in to clean out and spread as a semi-solid.

Once the job at the first farm is done, the tanker will be heading to the other farm to start on the herd homes. Adding water and stirring should give a spreadable slurry consistency. Also, for farm management, they won’t lose the use of the herd home for a week while the clean-out is taking place.


Nevada continually keeps up with spreading technology and offers a number of different spreader attachments for its slurry tankers. If you want dribble bars, trailing shoe, or injector systems, these can be ordered.

Autofill arm saves time getting on and off the tractor

However, all Nevada tankers are now fitted with the Rainwave applicator system. This offers most of the benefits of these other applicator systems, with minimal moving parts, so hopefully, less maintenance and repair. Operating at low pressure, the Rainwave system produces large droplets spread through an oscillating fan pattern to achieve an even spread with minimal drift. This also takes care of some of the issues associated the older splash plate system, which generally involves more smell and less accuracy with application.

Build quality

Using a full-frame chassis design, load stresses and weight are minimised to save wear on the tanker and tractor combination. A double dip galvanising process is used to keep the tank from rusting, inside and out. A clear coat is applied to give a finish that is going to keep it looking good for years – good advertising for contractors.

With turbo fill arm, less than four mins will have the 20,000L tank filled

The tank is made with implosion rings on the joins, along with baffles for additional safety, to help prevent surging and keep the fully loaded tanker safer while towing. The large rear hatch opens to allow you to hose out the inside if you do get any build-up in the bottom. Six large 550/60R-22.5 tyres carry the weight of a full load with no problem. Sinking into soft paddocks is not an issue, and these tyres also help make the tanker easier to tow. Sitting on heavy-duty leaf springs and with drawbar suspension, it handles the load with ease and is easier on the tractor. Front and rear steering axles make the eight-metre tanker manoeuvrable and prevent damaging pasture scuffing tyres when turning. Also, since it’s a large tanker, you’re doing fewer loads up and down races wearing them out.


Quality Italian pumps are used on all Nevada machinery. An oil-cooled pump on the test machine has been chosen to handle pumping and sucking the thick slurry expected of it, without overheating, along with the turbo fill to make the job a little easier. The central auto-fill arm should push any solids towards the rear when filling, as opposed to silting up over time.

Manual fill, just above the electronic brain of the system, which keeps operation simple with a handheld remote

As I mentioned earlier, fill time is a mere four mins or less. The one little bugbear I had with filling was the length of the hose for the filling pod, which is not a major and may be down to just changing set-up to make it work better.


Nevada is the not-so-secret weapon that guys in the know have for slurry handling in New Zealand and beyond. Whatever you need in the line of slurry management, Nevada has it covered. The range of tankers delivers from a single axle 6000-litre machine to the largest Tridem triple axle unit of 37,000 litres, providing options for smaller farms through to the largest, along with contractor spec machines.

The Tridem test machine proves its worth as a valuable all-round machine with good capacity, but not so large as to be problematic to manage. Electronic remote along with auto-fill arm with turbo filler make it an efficient option to shift a lot of loads in quick order.

About Nevada

Beginning life as Midwest Machinery back in 1988, with a focus on supplying sales and service of general farm machinery, the business began specialising more in dairy effluent machinery with increased demand in this area. Since rebranding as Nevada, to support New Zealand farmers and sustainable effluent management, the business has grown to be one of New Zealand’s leading effluent management specialists.

Nevada originally imported equipment for New Zealand farmers and now also manufactures components in Taranaki, as well as using the best quality parts from Europe to produce the quality machines to suit New Zealand conditions.

The dual Rainwave spreader doing a good job in windy conditions

Nevada is now a one-stop shop for all things relating to effluent management, including the initial design of a new effluent system. It’s Farm Dairy System Design Accredited through Irrigation NZ and can work with farmers to design the right system from sumps and storage, tanks, bladders, or ponds, complying with resource consent, working out Dairy Effluent Storage Calculations to fit the farm environment plan for
the property, and ensuring the right-sized system for the property. These systems also take into account future growth plans, ensuring each customer gets the most out of
the investment.

Along with the effluent storage, Nevada specialises in a full range of spreading options from traditional travelling irrigators and hydrant systems to tankers such as the Nevada Tridem, as well as lay flat hose umbilical systems, both great to cover greater distances from the storage and better utilise nutrients across the farm.

Nevada MB200 Tridem Specifications

Tank size 20,150L
Length 8.8m
Pump 16,000L
Axle type 3 axle, 2 steering
Tyres 550/60-22.5R

Drawbar and 3 axles,
leaf suspension

Brakes Hydraulic all 6 wheels
Controls Handheld electronic remote
Fill System Front standard centre auto-fill
Size fill house 8-inch (200mm)

Double dip galvanised
and clear coated

Applicator Dual Rainwave applicator
Options Applicators, fill arms, pumps
Warranty 2 years


  • Turbo fill arm, quick fill time
  • Efficient dual Rainwave applicator
  • NZ-designed for NZ conditions
  • Oil-cooled pumps to handle the thickest of liquids
  • Easy-to-operate electronic remote


  • Filler hose just a little short, an extra 1–2m would make lining up to fill easier (depending on the set-up)

 Find new and used farm machinery for sale in NZ

Photography: Mark Fouhy

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