Industry leading, lightweight professional petrol chain saw, ideal for felling. Fitted standard with 18″ (45cm) guide bar
The lightest saw in its class, with enough power to breeze through any job. Part of the ECHO X Series meaning it has industry leading features and performance.

Professional engine
Featuring a powerful 50.2 cc profesional grade engine, giving exceptional power and performance.

Compact, ergonomic design
The lightest saw in its class, the CS-501SX has many features appreciated by professionals. These include 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; an anti-icing system preventing the carburettor from freezing in colder months

Starter grip assist caps
Starter grip can be used to open the caps manually.

Best Features
Lightweight
Engineered to weigh less whilst retaining robust durability.

Power to weight ratio
Super light-weight design with exceptional power.

Ergonomics
Designed to maximise efficiency and comfort.

Product Details.
Engine displacement (cm³) 50.2
Output (kw) 2.57
Output (ps) 3.50
Dry Weight (kg) 4.7
Fuel Tank Capacity (ml) 500
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.