✅ Free Metro Delivery Included ✅ Fast Dispatch ✅ Authorised Dealer Support ✅ Delivery options are confirmed at checkout based on order and location. CS-4310SX The most powerful and lightest chain saw in its class. Fitted standard with a special light weight 18" (45cm) guide bar. Scroll The ECHO CS-4310SX is a professional grade, mid-sized chain saw suitable for a wide range of applications, including felling. With an extremely light weight and durable frame and a powerful 42.9 cc 2 stroke engine it provides the best power to weight ratio in its class. This means you get extreme manoeuvrability and comfort without compromising on power. The industry leading, centrifugal separation dust free system is a scaled down version of the filtration system found in the CS-7310SX. This system uses centrifugal forces and an automotive style filter to ensure your engine and internal components stay free from dust and debris, reducing the need for maintenance. Lightest and most powerful in its class With a 42.9 cc engine featuring spilt-crankcase construction and a twin ring piston, the CS-4310SX produces 2.3kW of power at just 4.3 kg dry weight, giving it the best power to weight ratio in its class. Features for the professional The CS-4310SX is packed with features to increase productivity and make maintenance easy Heavy duty aluminum handle with rubber grip and 3 point anti-vibration spring Momentary stop switch for quick and easy engine restart High volume air cleaner with centrifugal pre-filtration Split crankcase construction and twin ring piston Adjustable oiler Flip lever caps for easy refilling Captive drop prevention bar nuts Translucent fuel tank Centrifugal separation system Centrifugal separation dust free system massively reduces the need for maintenance by removing dust and debris in stages before incoming air reaches the pleated air filter element. Best Features Power to weight Super light-weight design with exceptional power. Ergonomics Designed to maximise efficiency and comfort. Light weight Engineered to weigh less whilst retaining robust durability. Product Details Engine displacement (cm³) 42.9 Output (kW) 2.30 Output (ps) 3.13 Dry Weight (kg) 4.3 Fuel tank capacity (l) 0.40 Chain Oil Tank Capacity (mL) 270 Fuel Consumption At Maximum Engine Power (L/h) 1.24 Priming Pump Yes Ignition System CDI Start Assist System ES-Start Chain Brake Inertia Choke w/ Automatic Fast Idle Release Yes Chain Tensioner Side Saw Chain Pitch (inch) 0.325 Guide Bar Gauge (inch) 0.050 Applicable Bar Length (cm/inch) 1 33, 35, 40, 45 / 13, 14, 16, 18 Vibration Front handle/Rear handle (m/s²) 3.3 / 3.1 Sound power level (dB(A)) 111.2 Sound pressure level (dB(A)) 102 CO² (g/kW・h) 2 846 Carburettor Diaphragm 1 Not all lengths available in every country. Available bar lengths may incur differing RRPs. Please check with your local dealer. 2 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.