Echo CS-501SX Chainsaw - 18"

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The Echi CS-501SW Chainsaw is an Industry leading, lightweight professional petrol chain saw, ideal for felling and limbing.

The lightest saw in its class, with a 50.2cm³ engine suitable for felling and other ground work. Part of the ECHO X Series meaning it has industry leading features and performance. The CS-501SX is one of our most popular chain saws, and for good reason, its combination of being light weight, ergonomic and powerful beyond its specs make it an incredibly versatile tool and great choice for professionals.

Professional engine

Featuring a powerful 50.2cm³ professional grade engine, giving exceptional power and performance.


Built for professionals.

The lightest saw in its class, the CS-501SX has many features for professionals. The redesigned front handle provides a more stable and comfortable hold during cutting, a starter grip assist cap opener; dropout prevention nuts; a tool-less air filter cover allowing easy air filter access, even when wearing gloves; a side access chain tensioner enabling easy chain adjustment and an anti-icing system.

Slimline, ergonomic and robust.

Built for daily commercial application with a magnesium die-cast crankcase and

aluminum handle, it is both light weight and highly durable. The slimline design makes limbing fast and accurate.

Product Details.

Engine displacement (cm³) 50.2
Output (kw) 2.57
Output (ps) 3.50
Dry Weight (kg) 4.7
Fuel tank capacity (l) 0.50
Chain Oil Tank Capacity (ml) 280
Fuel Consumption At Maximum Engine Power (L/h) 1.54
Ignition System CDI
Start Assist System Decomp
Chain Brake Inertia
Choke w/ Automatic Fast Idle Release Yes
Chain Tensioner Side
Saw Chain Pitch (inch) 0.325
Guide Bar Gauge (inch) 0.58
Applicable Bar Length (cm/inch) 1 40, 45, 50 / 16, 18, 20
Sound pressure level (dB(A)) 103.6
Sound power level (dB(A)) 113.5
CO² (g/kW・h) 2 742
Vibration Front handle/Rear handle (m/s²) 5.2 / 5.4
Not all lengths available in every country. Available bar lengths may incur differing RRPs. Please check with your local dealer.
This CO² measurement results from testing a (parent) engine representative of the engine type (engine family) over a fixed test cycle under laboratory conditions and does not imply or express any guarantee of the performance of a particular engine.

Other Features.

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