ECHO Gasoline Chain Saw – 24-Inch Bar, 89.8cc (4.3HP), Made in Japan - CSB621SX

Professional-Grade 24-Inch Chain Saw

The ECHO CS-621SX is an elite, professional-grade chainsaw engineered specifically for heavy-duty commercial forestry and massive timber felling. Belonging to ECHO's prestigious X-Series, this Japanese-manufactured powerhouse is driven by a highly advanced 59.8cc low-emission engine that generates an aggressive 4.3 HP (3.2 kW) output. When paired with its massive 24-inch (60 cm) guide bar, this saw provides the raw, uninterrupted cutting force of a much larger machine, effortlessly slicing through the thickest trunks and dense hardwoods while heavily reducing its environmental impact compared to previous generations.

Despite delivering such immense mechanical power, the CS-621SX is masterfully balanced, maintaining a dry weight of just 6.3 kg. This superior power-to-weight ratio minimizes operator arm fatigue during rigorous, day-long felling operations. To maximize cutting control and stability deep within the wood, the unit is equipped with heavy-duty dual bumper spikes. Furthermore, starting this heavy-duty engine is effortless thanks to the integrated decompression valve and CDI ignition, which drastically lower starter rope resistance for immediate cold starts.

Built to survive the world's harshest environments, the chainsaw features advanced filtration technology. The G-Force engine air pre-cleaner uses centrifugal force to eject dirt and debris before it can ever reach the filter, extending maintenance intervals significantly. Complemented by a tool-less air filter cover, a translucent fuel tank for instant level checks, and an inertia chain brake for critical kickback protection, this saw delivers absolute reliability and convenience for forestry professionals.

Key Features & Benefits:

• Professional Low-Emission Engine: Features a 59.8cc high-performance engine delivering 4.3 HP, utilizing the latest technology to ensure industry-leading low emissions without sacrificing torque.
• Best-in-Class Portability: The highly durable 6.3 kg design offers a superior power-to-weight ratio, effectively minimizing operator fatigue during long commercial shifts.
• Effortless Starting System: Equipped with a built-in decompression valve (Decomp) and CDI ignition for fast, low-resistance engine starts every single time.
• G-Force Engine Air Pre-Cleaner: Advanced centrifugal system removes dirt and debris before it reaches the filter, significantly extending maintenance intervals and reducing downtime.
• Maximum Cutting Control: Dual bumper spikes and an ergonomically balanced handle layout provide absolute precision and stability during deep felling and bucking cuts.
• Tool-Less Air Filter Access: Designed for quick and easy access to the air filter even when wearing heavy gloves, facilitating rapid field servicing.
• Operator Convenience: Includes a highly visible translucent fuel tank allowing operators to check fuel levels instantly without stopping to open the cap.
• Inertia Chain Brake: An enhanced, critical safety mechanism that automatically halts the chain instantly in the unpredictable event of a kickback.
• Japanese Reliability: Proudly built to the highest possible standards in Japan and field-tested in the harshest environments for maximum mechanical durability.
• Fuel & Oil Mix: Requires a strict 50:1 ratio of unleaded gasoline to 2-stroke oil (Example: 100ml oil per 5L gasoline).