Overview
Description
Reliable Performance You Can Trust
For performance you can rely on, trust the Husqvarna 445. This robust gas-powered chainsaw
features Smart Start® technology and air purge for best-in-class starting performance.
The proprietary X-TORQ® engine delivers strong power, improved fuel efficiency, and reduced
emissions. Combined with an ergonomic design and LowVib® technology, this saw offers
comfortable operation—even in demanding conditions.
Features
- X-TORQ® Engine: Delivers strong power and torque with efficient combustion and lower emissions.
- LowVib® Technology: Reduces vibration for improved operator comfort.
- Smart Start® Technology: Engine and starter system designed for easy, quick starting.
- Air Purge: Removes air from the carburetor and fuel system for easier starting.
- Air Injection™: Centrifugal air cleaning system extends engine life by removing debris before it reaches the filter.
- Combined Choke/Stop Control: Simplifies starting and reduces the risk of engine flooding.
- Three-Piece Crankshaft: Forged design ensures durability in demanding applications.
- Inertia-Activated Chain Brake: Improves safety by reducing the risk of kickback injury.
- Quick-Release Air Filter: Easy removal and cleaning.
- Fuel Indicator: Transparent window for quick fuel level checks.
- Flip-Up Fuel Cap: Easy to open and secure, even with gloves.
- Snap-Lock Cylinder Cover: Quick access for maintenance and spark plug service.
- Felling Marks: Provides improved accuracy during tree felling.
- No Oil at Idle: Oil pump disengages at idle to reduce consumption and mess.
- Best-in-Class Starting Performance: Designed for reliable, hassle-free starts in all conditions.
- X-CUT® Chain: Offers excellent sharpness and long-lasting performance.
Specifications
Engine
- Chain Speed (Max Power): 56.76 ft/s (17.3 m/s)
- Displacement: 50.2 cc
- Power Output: 2.8 hp (2.1 kW)
- Max Torque: 2.4 Nm @ 6,300 rpm
- Clutch Engagement Speed: 4,300 rpm
- Max Power Speed: 9,000 rpm
- Idle Speed: 2,700 rpm
- Electrode Gap: 0.02 in
- Ignition Module Air Gap: 0.01 in
- Oil Pump Type: Fixed flow
- Spark Plug: Champion RCJ7Y / NGK BPMR7A
Cutting Equipment
- Recommended Bar Length (Min): 13 in (33 cm)
- Recommended Bar Length (Max): 20 in (50 cm)
- Standard Bar Length: 18 in (45 cm)
- Chain Pitch: .325″
- Gauge: .050″
- Chain Type: SP33G
- Sprocket Type: Spur 7
Dimensions & Weight
- Weight (Excl. Cutting Equipment): 11.2 lb (5.1 kg)
Sound & Noise
- Sound Pressure (Operator’s Ear): 103 dB(A)
- Sound Power (Guaranteed): 114 dB(A)
- Sound Power (Measured): 112 dB(A)
Vibration
- Rear Handle: 4.9 m/s²
- Front Handle: 3.1 m/s²
Lubrication & Fuel
- Oil Tank Volume: 0.53 US pint
- Fuel Mix: Husqvarna 2-stroke oil or equivalent at 50:1
Emissions
- CO₂ Emissions (EU V): 920 g/kWh