Shindaiwa 731SX Chainsaw
Ultimate Power and Torque for Heavy Timber Felling
The Shindaiwa 731SX is a flagship professional chainsaw, purpose-built for arborists and forestry professionals who tackle large-diameter, hard timber daily. Its massive 73.5 (cm³) engine provides immense torque and power, while its magnesium construction ensures the robustness and resilience required for continuous, heavy-duty felling operations.
| Key Feature | Professional Benefit |
| Highest Output 73.5 (cm³) Engine | Delivers uncompromising power with 4.1kW / 5.6 HP to handle the largest felling tasks and dense hardwoods effortlessly. |
| Maximum Bar Capacity | Supports long guide bars up to 70 cm(28 inches), essential for making single cuts through very large trees. |
| Heavy-Duty Magnesium Construction | Crankcase, side cover, and starter cover are made from magnesium, providing extreme toughness and durability while keeping the dry weight at a manageable 6.8 kg. |
| G-Force Centrifugal Pre-Cleaner | Advanced system pre-cleans the intake air, massively reducing the dust and debris reaching the main filter, leading to less maintenance and superior cooling/filtration in dusty conditions. |
| Flip Lever Caps & Captive Bar Nuts | Intuitive flip levers allow for easy fuel/oil refills (even with gloves on), and captive nuts prevent them from being dropped and lost during field maintenance. |
| Professional Decompression Valve | Essential for a large engine, this system aids the CDI ignition to ensure the high-compression engine starts reliably and with significantly reduced pull effort. |
Product Details.
| Engine displacement (cm³) | 73.5 |
|---|---|
| Output (kw) | 4.1 |
| Output (ps) | 5.6 |
| Dry Weight (kg) | 6.8 |
| Fuel tank capacity (l) | 0.80 |
| Chain Oil Tank Capacity (mL) | 360 |
| Fuel Consumption At Maximum Engine Power (L/h) | 2.33 |
| Priming Pump | Yes |
| Ignition System | CDI |
| Start Assist System | Decomp |
| Chain Brake | Inertia |
| Choke w/ Automatic Fast Idle Release | Yes |
| Chain Tensioner | Side |
| Saw Chain Pitch (inch) | 3/8 |
| Guide Bar Gauge (inch) | 0.055 |
| Applicable Bar Length (cm/inch) 1 | 45, 50, 60, 70 / 18, 20, 24, 28 |
| Sound pressure level (dB(A)) | 104.6 |
| Sound power level (dB(A)) | 117.5 |
| CO² (g/kW・h) 2 | 743 |
| Vibration Front handle/Rear handle (m/s²) | 4.6 / 4.3 |