The most powerful and lightest chain saw in its class.


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 cm³ 2-stroke engine it provides the best power to weight ratio in its class. This means you get extreme maneuverability 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, massively reducing the need for maintenance.

Lightest and most powerful in its class.

Lightest and most powerful in its class.

Weighing just 4.3 kg with a 42.9 cm³ engine that provides 2.3 kW power the CS-4310SX has the best power to weight ratio in its class.

Features for the professional.

Features for the professional.

The CS-4310SX is packed with features to increase your productivity:

Heavy-duty aluminum handle with rubber grip for secure grip and 3-point anti vibration spring.

Features for easy maintenance:

Momentary switch for quick and easy engine restart.

Rotating plastic chain catcher.

Side access chain tensioner for easy chain adjustment.

Flip lever caps for easy refilling.

Drop prevention nuts as standard.

Translucent fuel tank shows fuel level.

Centrifugal separation system.

Centrifugal separation system.

Centrifugal separation dust free system massively reduces the need for maintenance by removing dust and debris in stages before air even reached the automotive style air filter.

Meilleurs fonctionnalités.

Power to weight

Super light-weight design with exceptional power.


Designed to maximise efficiency and comfort.

Light weight

Engineered to weigh less whilst retaining robust durability.

Détails produits.

Carburateur Diaphragm
Cylindrée (cm³) 42.9
Puissance (kW) 2.3
Poids à sec 4.3
Capacité du réservoir de carburant (l) 0
Capacité du réservoir d'huile de chaîne (ml) 270
Consommation de carburant à la puissance maximale du moteur 1.24
Pas (pouce) 0.325
Jauge (pouce) 0.050
Longueur de coupe (cm) 33, 35, 40, 45
Niveau de pression sonore (dB(A)) 103.1
Niveau de puissance sonore (dB(A)) 113.0
CO² (g/kW・h) 846
Vibrations poignée avant/poignée arrière (m/s²) 3.3 / 3.1