Hardi NK Sprayers

Well proven sprayers

The HARDI NK sprayer is one of the most versatile sprayers ever built. The NK is used by professional plant growers all over the world. It finds its use in traditional farming, horticulture, orchards, vineyards and on grasslands.

The NK is a durable and well proven sprayer that offers far more features and options than you would expect from a sprayer in this class.

Tank: 400, 600 and 800 l high impact polyethylene
Frame: Low centre of gravity close to tractor
Diaphragm pump: Reliable, high capacity and easy to service
Operating unit: Manual operated HARDI BK-180
Booms: Manual folded 6, 8 and 10 m SB boom
Manual folded 12 m MB boom



The high-impact polyethylene tank has a deep sump that ensures complete emptying of the tank. The tank design
maximises liquid agitation as well as ensuring easy and efficient tank cleaning with the use of a tank cleaning
nozzle. The top mounted suction filter on the 400, 600 and 800 l tanks makes it safe and easy for the operator
to perform routine maintenance of the filter screen.

The NK sprayer comes standard with pressurised agitation, that ensures consistent agitation of even the most
difficult mixtures.


HARDI pumps are designed for the application of chemicals and liquid fertiliser. The diaphragms separate
the liquid from the vital parts of the pump such as its bearings and crankshaft, ensuring reliable and durable

HARDI diaphragm pump features:

  • Self-priming
  • Able to run dry without damage
  • Easy to service without special tools
  • Grease lubricated crankcase
  • Chemical resistant diaphragms and valves


The NK line offers as standard the unique and reliable HARDI BK-180 control unit. This control unit comes with
a long list of standard features.

  • Main on/off that diverts all liquid back into the tank
  • Safety valve
  • Pressure filter
  • Pressure gauge
  • Valve for pressure agitation
  • Minimum of 3 distribution valves with constant pressure system
  • HARDI-MATIC for constant application rate regardless of RPM variations

All these features ensure accurate and reliable application of all plant protection chemicals.


All booms for the NK are, like the frame, zinc-phosphate treated before being coated with polyester powder. This with a proven design ensures long and reliable use of the boom.

The 6, 8 and 10 m SB booms are directly mounted to the frame. A mechanical and hydraulic boom lift makes the height adjustment easy and safe. If the NK sprayer will be used in crops with are higher than 50 cm a lift must be ordered to fulfill the EU regulations.

The 12 m MB boom features a trapeze suspension for self-stabilisation and prolonged boom life. On the SB booms they trapeze suspension is an optional.


The chassis is the base of a long lasting sprayer. The design of the NK chassis provides for a centre of gravity that is both low and close to the tractor. The design furthermore offers easy service accessibility. The NK chassis is zinc-phosphate treated before being coated with polyester powder. This ensures outstanding weather and chemical resistance on all chassis parts.

No dripping from nozzles

The single SNAP-FIT nozzle holders have a built-in non-drip diaphragm check valve. The non-drip valve ensures no dripping from the nozzles when the main on/off is closed. The SNAP-FIT system furthermore ensures that all
nozzles are in the correct position. A large range of high quality HARDI nozzles is available to suit any spray task.