ID # 20728309

Husqvarna 545FX AutoTune

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Exceptionally easily operated forestry clearing saw with high performance and unique ergonomical solutions designed for full time spacing tasks. Optimised transmission with the bevel gear angled 24 degrees simplifies directional felling in dense forests. Easily started X-torq® engine with rapid acceleration, reduced fuel consumption and emissions. Very low vibrations thanks to an effective anti-vibration of the engine, drive shaft and cutting equipment. Easy to start with Smart Start®. Delivered with Balance XT harness.

545FX AutoTune
Sale Type
Power Output
2.2 kW
Cylinder Displacement
45.7 cm³
Weight (excl. Cutting Equipment)
8.2 kg

Husqvarna 545FX AutoTune AutoTune

Always optimized engine performance - no need for carb adjustment due to variations in fuel quality, climate or altitude.

Husqvarna 545FX AutoTune Adjustable handle bar

Adjustable and ergonomically designed handlebar for best comfort.

Husqvarna 545FX AutoTune Thumb-operated throttle

Thumb-operated throttle for efficiency and precision control. Reduces strain on the hand muscles.

Husqvarna 545FX AutoTune Easy blade switch

Magnetic locking pin holder facilitates blade switch.

Husqvarna 545FX AutoTune LowVib®

Effective anti-vibration dampeners absorb vibration, sparing the user’s arms and hands.

Husqvarna 545FX AutoTune Fuel pump

Fuel pump designed for easy starting.

Husqvarna 545FX AutoTune Ergonomic handle

Comfortable handle design.

Husqvarna 545FX AutoTune Balance XT

Ergonomic harness with broad back support, shoulder straps and hip belt that distributes the load over a larger area. Adjustable back plate for perfect fit.

Husqvarna 545FX AutoTune Forestry bevel gear

Bevel gear designed for forestry use with high blade speed for best cutting performance.

Husqvarna 545FX AutoTune X-Torq® engine

The X-Torq® engine design reduces harmful exhaust emissions by up to 75% and increases fuel efficiency by up to 20%.

Husqvarna 545FX AutoTune Auto return stop switch

When the machine is turned off, the stop button automatically returns to start position for trouble free start.

Power Output
2.2 kW
Idling Speed
2700 rpm
Torque, Max.
2.6 Nm
Electrode Gap
0.5 mm
Fuel Consumption
450 g/kWh
Fuel Tank Volume
1 l
Torque, Max. At Rpm
6000 rpm
Cylinder Displacement
45.7 cm³
Ignition Module Air Gap
0.3 mm
Maximum Rpm Output Shaft
9700 rpm
Exhaust Emissions (CO2 EU V)
856 g/kWh
Clutch Engagement Speed (±120)
3900 rpm
Gear Ratio
Drive Gear Angle
24 °
Weight (excl. Cutting Equipment)
8.2 kg
Balance XT
Saw Blade
Scarlett 225-24
Lubricant Type (bevel Gear)
Biodegradable grease
Exhaust Emissions (CO Average)
283.26 g/kWh
Exhaust Emissions (HC Average)
42.19 g/kWh
Exhaust Emissions (NOx Average)
1.14 g/kWh
Exhaust Emissions (CO₂ Average)
856 g/kWh
sound and noise
Sound Power Level, Guaranteed (LWA)
116 dB(A)
Sound Pressure Level At Operators Ear
99 dB(A)
Equivalent Vibration Level (ahv, Eq) Left Handle
2.9 m/s²
Equivalent Vibration Level (ahv, Eq) Right Handle
3.3 m/s²

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