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Shindaiwa 731SX Professional Felling Chainsaw

Heavy-duty 73.5cc professional forestry chainsaw delivering exceptional torque, durability and cutting performance with a 20" guide bar.

Key Features
  • Powerful 73.5cc Professional Grade Japanese Engine
  • 20" (50 cm) Solid Guide Bar with Replaceable Sprocket Nose
  • Magnesium Crankcase, Side Cover and Starter Cover
  • High Torque Output for Professional Forestry and Felling
  • Centrifugal Air Pre-Cleaner System for Reduced Maintenance
  • Decompression Start Assist for Easier Starting
  • Side Access Chain Tensioner for Fast Adjustment
  • Inertia Chain Brake for Enhanced Operator Safety
  • Automatic Fast Idle Release System
  • Supports Optional Guide Bars up to 28"
  • Lightweight Design for its Power Class
  • Built for Heavy Duty Professional Forestry Use
The Shindaiwa 731SX Chainsaw is a premium professional felling saw engineered for demanding forestry and heavy-duty commercial applications. Powered by a high-performance 73.5cc Japanese-built two-stroke engine, this chainsaw delivers exceptional torque and cutting performance, making it ideal for large timber felling, land clearing and forestry work. Despite its impressive power, the 731SX remains highly manoeuvrable thanks to advanced materials and efficient design, weighing just 6.8 kg. The magnesium crankcase, starter cover and side cover provide exceptional strength while reducing overall weight, ensuring durability and ease of handling during extended use. The centrifugal air pre-cleaner system removes debris before it reaches the air filter, improving engine efficiency and reducing maintenance requirements in harsh environments. The saw is fitted standard with a durable 20" (50 cm) solid guide bar featuring a replaceable sprocket nose and supports optional bar lengths up to 28" for increased versatility. Professional features such as decompression start assist, side access chain tensioner, inertia chain brake and automatic fast idle release provide ease of use, safety and efficient operation. With its robust construction, professional-grade components and exceptional cutting capability, the Shindaiwa 731SX is built to perform reliably in the toughest forestry conditions.
Engine and Fuel Specs
Engine Displacement73.5 cc
Power Output4.1 kW / 5.6 PS
Fuel Tank Capacity0.80 L
Fuel Consumption2.33 L/h at maximum engine power
Ignition SystemCDI
Start Assist SystemDecompression
Priming PumpYes
Chainsaw Specs
Guide Bar Length20" (50 cm)
Applicable Bar Lengths18", 20", 24", 28"
Chain Pitch3/8"
Guide Bar Gauge0.055"
Chain Oil Tank Capacity360 mL
Chain BrakeInertia
Chain TensionerSide Access
Choke with Automatic Fast Idle ReleaseYes
ConstructionMagnesium Crankcase, Side and Starter Covers
Dimension and Performance Specs
Dry Weight6.8 kg
Vibration Level (Front / Rear)4.6 / 4.3 m/s²
Sound Pressure Level104.6 dB(A)
Sound Power Level117.5 dB(A)
Air Filtration SystemCentrifugal Air Pre-Cleaner with Heavy Duty Air Filter
ApplicationProfessional Forestry and Heavy Duty Felling

* Images shown may sometimes be from comparable models supplied by the manufacturer. Availability can change frequently, so we recommend contacting us to confirm current stock.


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