7.1 KNAPSACK SPRAYER

Features:

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

Uses:

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

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

7.2 MOTORISED KNAPSACK MIST BLOWER CUM DUSTER

Features:

It consists of two plastic tanks (fuel and water/dust), engine, pump, spray hose, rope starter, delivery pipe, cut-off-cock, shoulder straps and a frame. It has a small 2-stroke petrol/kerosene engine of 35 cc to which a centrifugal fan is connected. The fan produces a high velocity air stream, which is diverted through a 90-degree elbow to a flexible (plastic) discharge hose, which has a divergent outlet. Upon rotation of the engine the fan produces a high velocity air stream. The control valve for the spray is opened gradually and adjusted for the desired flow rate. The operator directs the discharge hose to the target. It can be converted for dusting and ULV application.

Specification:

Length (mm)

Width (mm)

Height (mm)

Weight (kg)

Number of tanks

Air velocity at outlet(m/s)

Field capacity(ha/h)

Power requirement (hp/kW)

:      460

:      210

:      540

:      9-11

:      2

:      65-75

:      2-3

:      1.2/0.9, petrol or petrol/kerosene

       engine

Uses:

It is suitable for spraying pesticides and fungicides. It is used for spraying in rice, fruits and vegetable crops. It can be used for applying pesticides in liquid and powder form.

Cost of Machine : Rs.7000/-