Knapsack Sprayer


Power Knapsack Sprayer


Tractor Drawn Boom Sprayer


Aero-blast Sprayer







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Knapsack sprayer consists of a pump and air chamber permanently installed in a 9 to 22.5 liters tank. The handle of the pump extending over the shoulder or under the arm of operator makes it possible to pump with one hand and spray with the other.  Uniform pressure can be maintained by keeping the pump in continuous operation.


Brief Specifications:


Tank capacity (l)

Pump cylinder inner dia. (mm)

Number of piston in pump cylinder

Pressure chamber capacity (ml)

Displacement volume (ml)

Number of delivery spout

Type of delivery spout

Cut off valve passage diameter (mm)

Lance length (mm)

Nozzle type

Spray angle

Size of filling hole (mm)

Pump discharge (ml/min)

Power required




:      9-22.5

:      39-42

:      One

:      572-660

:      87.24

:      One

:      Threaded

:      5

:      725

:      Hollow cone

:      78 degree

:      94.9

:      610-896

:      One person



Knapsack sprayers are used for spraying insecticides and pesticides on small tress’ shrubs and row crops.


Cost of Machine : Rs.2,500-3,500/-











It consists of a frame on which a high density polyethylene tank, fuel tank, engine, delivery pipe, shock proof cushion, and a spray hose. The pump adopts horizontal gear driving. It is powerful and stable in pressure. As it is oil-soaking type, the lubricating effect of crank box is positive. It adopts double cylinder pump, which raises operational efficiency. The piston is heat treated and wear resistant. 'V' packing adopts special materials so it is durable. The engine has electronic ignition, which is easy to be operated and maintained. Its engine has high power to weight ratio. It uses gasoline as a fuel and produces one power stroke for each 1800 of crank rotation. Pressure is controlled by oil valve; spraying pressure is changeable freely and up to 30 kgf/cm2. Its structure is rigid; materials are excellent and easy to maintain. It can also be used for dusting and ULV application. 




Length (mm)                                      :            650

Width (mm)                                       :            450

Height (mm)                                       :            570

Weight (kg)                                        :            9.8

Plunger                                               :            1 No. Double acting

Cylinder                                             :            2 Nos.

Spraying volume (lit)                         :            4.8-5.2

Pressure (kg/cm2)                               :            20-25

Capacity (ha/day)                              :        1.5

Power Source (hp/kW)                      :         1-3/0.75-2.25, engine




It is suitable for spraying pesticides and fungicides on rice, fruits and vegetable crops.


Cost (Rs)  : 7000- 10,000








The sprayers essentially consists of a tank which is made of fibre glass or plastic, pump assembly, suction pipe with strainer, pressure gauges pressure regulators, air chamber, delivery pipe, spray boom fitted with nozzles. These are hydraulic energy sprayers. They utilize PTO power of the tractor to operate the pump of the sprayer. Basically the spray boom can be arranged in two ways; ground spray boom and overhead spray boom. The overhead spray boom is designed for tall field crops and the planting is done in such a way that it leaves an unplanted strip of about 2.5 m width for operation of the tractor. Therefore a planted strip may be 18-20 m wide and after every planted strip a fallow strip has to be left for tractor operation. For ground spray boom the planting has to be done in rows keeping in view track width of the tractor. It is suitable for use when the crop height is small.





No's of nozzle                                           :           21

Spray swath                                              :           10.2 m

Spacing between two nozzles                   :          460 mm

Tank capacity                                            :          400 Liter

Weight                                                       :          150 kg

Adjustment range of boom height            :          300 to 1260 mm

Field capacity                                           :           8 ha/day (with 21 nozzles)

Power requirement(hp/kW)                      :          35/262.5, tractor





For spraying in vegetables, gardens, flower crops, vineyards & tall field crops like sugarcane, maize, cotton, sorghum, millets etc.



Cost  (Rs)  : 50,000










The machine consists of tank of 400 litres capacity, pump, fan, control valve, filling unit, spout adjustable handle, pressure regulator and spraying nozzles to release the pesticide solution in to stream of air blast produced by the centrifugal blower. The air blast distributes chemical in the form of very fine particles throughout its swath, which is on one side of tractor. The major portion of swath is taken care of by the main blast through the main spout and the auxiliary nozzles cover the swath area near the tractor. The sprayer is mounted on the tractor 3-point linkage and is operated by tractor PTO. The orientation of air outlet can be adjusted for its direction and width of coverage.



Overall Dimension (mm)                    :            1100x1300x2050 (LxWxH)

Weight  (kg)                                       :            230

Flow rate (l/min.)                               :            120

Spray swath (m)                                 :            13-15

Capacity (ha/h)                                   :            1.5-2.0

Power Source(hp/kW)                        :            35/26.25, tractor




It is used for spraying plant protection  chemicals on horticulture  plants, tall crops like cotton, sunflower etc.


Cost (Rs)    :    85,000