Echo CS-501SX Petrol Chainsaw 50.2cc/45cm

Special Price £679.00 (inc VAT) Regular Price £789.00 (inc VAT)

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The lightest chainsaw in its class, the Echo CS-510SX features many features appreciated by professionals and is ideal for felling and other groundwork.

Powered by a powerful 50.2cc engine, the chainsaw features a decompression valve for faster, almost effortless starting, a starter grip asist cap opener, and an anti-icing sytem which stops the carburettor from freezing in cold temperatures.

With an excellent power-to-weight ratio and a dry weight of 4.7kg (excluding the bar and chain), the CS-510SX also features dropout prevention nuts, a tool-less air filter cover allowing easy air filter access, rotating plastic chain catcher and a side access chain tensioner enabling easy chain adjustment.

This chainsaw comes with either a 45cm guide bar.

X-Series means ECHO's best-in-class products. More power, lighter weight and performance that will noticeably increase your productivity. Designed for professionals who demand the best and highest quality tools.  X-Series engines make this line-up exceptional. They offer a revolutionary combination to get jobs done faster with less fatigue.

More Information
Brand Echo
Engine Type 2-stroke
Displacement 50.2cc
Power 2.57kW
Start Method Recoil
Ignition System CDI
Start Assist System Decompression valve
Priming Pump No
Choke With automatic fast idle release
Decompression Valve Yes
Fuel Tank Capacity 0.50L
Fuel Consumption 1.54L/h at maximum engine power
Guide Bar Length 40cm / 45cm / 50cm
Chain Pitch 0.325"
Chain Gauge 0.058"
Chain Brake Inertia-type
Chain Tensioning Side tensioner
Automatic Chain Lubrication Yes
Oil Tank Capacity 0.28L
Vibration Level Data Front handle: 5.2m/s²
Rear handle: 5.4m/s²
Sound and Noise Data Sound pressure level LpA: 103.8dB(A)
Sound power level LwA: 113.5dB(A)
CO² 742g/kW.h
Weight excluding Bar & Chain 4.7kg
Warranty 5 years domestic / 2 year professional (registered within 30 days of sale)
Promotional Image /e/c/echo-x-series.jpg

Low Emissions

Stage 2 compliant low emission engine means reduced exhaust emissions

Tool-less Air Filter Cover

For easy air filter access, even when wearing gloves

Side Access Chain Tensioner

Allows easy chain adjustment

Front Access Chain Tensioner

Allows easy chain adjustment

Anti-icing System

Stops the carburettor from freezing in colder months



Easy Start

Spring assisted starting system for quick, almost effortless starting. Just one or two gentle pulls of the recoil will start the engine. A warm engine will usually start with one half pull of the recoil rope

Dual-Post Chain Brake Handle

For increased durability

Digital CDI

Gives smooth, quick acceleration and stable idle

G-Force Engine Air Pre-cleaner

Reduces engine exposure to dirt and debris for less maintenance

Replaceable Metal Bumper Spike

For improved control


Echo power tools come with a five year domestic warranty or two year warranty in professional use


Echo works as hard as you do

In a world that’s constantly changing, one thing you can depend on, is your Echo tool.

For over 75 years, Echo has been building tools for commercial users around the world. From its humble beginnings in Japan with a simple handheld crop duster, to creating the world’s first ever power blowers in 1975, Echo has become a technological leader and well respected global brand.

As technology and users’ needs evolve, so too does Echo, staying on the pulse of the industry through decades of expertise and by listening to the feedback we receive. Echo's aim is not to react to changes in the market, but to be at the forefront. It does this by putting its dedication to producing the highest quality products above all else. Echo petrol tools continuously exceed increasingly stringent emissions requirements yet retain the robust power and dependability Echo is renowned for. Echo is reaching into new technologies such as professional performance battery tools and robotics with the careful and precise consideration that makes all Echo products ones you can depend on; this is our priority.

In the line-up you will find our staple, professional engine products amongst new battery products aimed at professionals, and for the first time, a range aimed solely at domestic users. Echo believes that the technology is now ready to offer great benefits for both professional and domestic users alike. So, whether you’re a fully-fledged outdoor professional or someone newly inspired to transform your environment into something more, Echo guarantees a tool that’s been crafted with expertise and passion, a tool you can depend on.




Echo products come equipped with a range of unique product features designed to deliver ease and comfort for users.

Echo is successful in producing low vibration and low noise for power tools and are leaders in two-stroke power tool emission technology. Echo casts and machines every engine in Japan where quality and consistency are closely controlled. And to gain manufacturing efficiencies, they are assembled at various factories around the world to the same exact standards.

Leading in two-stroke power tool emission technology
Echo has the widest variety of emission compliant engines ever certified for EPA, CARB regulations and EU directives. Echo has condensed the years of development in the USA into the trademarked Power Boost Tornado technology, with a highly refined two-stroke engine design. This technology is now applied across the Echo Power Tool range, with engines delivering more power, higher fuel efficiency and better engine lubrication, while improving combustion and reducing exhaust emissions.

Low Vibration
Echo has taken up the challenge and is successfully producing measures for maximum control of vibration. Echo products are designed and manufactured for constant and lengthy use by professional users, with homeowners/domestic users also able to enjoy the benefits of commercial quality and features. Under independent tests, Echo brush cutters and Echo hedge cutters have produced the lowest vibration figures. ECHO is one of very few manufacturers who make its own engines, therefore every ECHO product is designed and tested as a completed package. This ensures high quality, ergonomically designed equipment, with maximum vibration controls.

Low Noise
With power tool equipment in use in public and residential areas, noise is of primary concern, Echo has developed the technology to control and minimise noise pollution. Echo designs and manufactures engines from scratch, matching low noise engines to low vibration products, by retaining complete manufacturing control.

ECHO Innovation - i-start
The i-start device makes first time starting of two-stroke engines a certainty, while removing 90% of the effort required. i-start stores the energy of one long and gentle pull, or two short pulls of the recoil starter and delivers it in a dynamic burst that starts the engine every time.

ECHO Innovation - Easy Start
Denoted by the ES symbol on the power tool, Easy Start works in a different way to i-start to minimise the effort required to start the engine. With Easy Start the pulling power needed on the starter rope is greatly reduced compared to other makes, with no kick-back effect when cranking.



Yes, you did read that right. You can have absolute confidence in our equipment. ECHO is designed to be durable and to do what you ask it, wherever you take it. Not only that, our products are built to the highest standards of quality and performance. Echo's warranty is their statement of confidence and badge of honour. Echo – world-class technology.

* Registration of Echo products and servicing are necessary to validate the warranty.


Five years is a long time. Longer than you’ll get from most of the equipment you buy. That’s because Echo stand behind their products. Echo have been building equipment for professionals for decades and that has given them an exceptional level of engineering and manufacturing expertise. As a home owner, you want long term dependability enjoyed by professionals, and a well built product that you can buy with confidence. 

* Registration of Echo products and servicing are necessary to validate the warranty.


The Garden+ range of tools are all covered by Echo's 2 + 1 domestic use warranty. Each tool comes with a 2 year domestic use warranty as standard and by registering your product you will receive an additional 1 year. All batteries have a fixed, 2 year warranty. Echo expertise is built into every tool, so Echo's warranty is their pledge that you receive a tool worthy of the Echo name. A tool that you can depend on. 

* Registration of Echo products is necessary for the additional third year.


The Professional Series is backed by the same industry leading warranty as its petrol stablemates; 2 year professional use and 5 year domestic use warranties on tools, as well as a 2 year warranty on batteries. That’s because Echo products are built to the highest standards of quality and performance, meaning you can have complete confidence in Echo tools.

View Echo brochure online

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Echo CS-501SX Petrol Chainsaw 50.2cc/45cm
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