Stihl SR 450 Blower/Sprayer

Part #: SSR
A powerful backpack sprayer/duster that easily converts from liquid to granular applications.
For both the distribution of liquid or solid insecticides, fertilizers, or herbicides, the low-emission, fuel-efficient STIHL SR 450 Backpack Sprayer has a larger, more powerful engine that provides a spray range 20% wider than previous models, taking 20% less time to spray the same area, depending on application. The SR 450 easily converts from misting to dusting applications without special tools or additional equipment, and air speed can be easily adjusted during use for greater application and less product waste. The SR 450 can also be used as a backpack blower for debris cleanup.


Multi-Function Control Handle

Having easy access to all of the controls on one comfortable handle makes it easy to complete tasks so the operator’s hand never has to leave the handle.
  • Anti-Vibration System 
    STIHL has a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience.
  • Adjustable Support Harness

    STIHL backpack blowers and sprayers are equipped with an adjustable support harness that distributes weight evenly across the shoulders and back, reducing user fatigue. 

    SR 450 Specifications
    The pressure pump kit is recommended for applications in which the spray tube is held at an upward angle of more than 30 degrees in order to maintain a consistent discharge rate.
    DISPLACEMENT 63.3 cc (3.86 cu. in.)
    ENGINE POWER 2.9 kW (3.9 bhp)
    WEIGHT 12.8 kg (28.2 lbs.)
    FUEL CAPACITY 1700 cc (57.5 oz.)
    CONTAINER CAPACITY 14.0 l (3.7 gals.)
    AIR VOLUME With Tubes: 920 m3/h (542 cfm)
    AIR VELOCITY 90 m/sec. (201 mph)
    SPRAY RANGE (Maximum) Vert.: 13.0 m (43 ft.)
    Horz.: 14.5 (48 ft.)