The SENIX 54.5cc 2-Stroke 20" Chainsaw delivers outstanding power and performance for demanding cutting jobs. Featuring an anti-vibration system, quick-release filter cover, and carburetor flap control, it ensures easy startups and operator comfort. With a 51cm bar, durable two-stroke engine, and EV5 certification, this chainsaw is engineered for efficiency, precision, and long-lasting reliability.
High-Performance Engine: Two-stroke 2300W engine delivers strong, consistent power.
Reliable Fuel Delivery: Walbro® carburetor ensures smooth operation and efficient fuel use.
Quick Start: NGK® spark plug and easy-start engine/starter design for minimal effort.
Precision Cutting: Oregon® bar and chain for clean, accurate cuts.
Side Chain Tensioning: Adjust the chain quickly without tools.
Operator Comfort: Effective shock absorption system protects hands and arms.
Maintenance Convenience: Snap-lock cylinder heads and combined dampers/switches simplify spark plug replacement and oil filling.
Model | CSTS-M3-EU |
Power | 2300W |
ENGINE | Two- Stroke Engine |
Engine Idle Speed | 3000±300/min |
Engine High Speed | 11500±300/min |
Bar Length | 50.8cm |
| Fuel mixture ratio(Gasoline: Two-cycle Oil) | (25:1) |
Fuel Tank Capacity | 550ml |
Oil Tank Capacity | 260ml |
Easy to start | Yes |
Net weight (tool only) | 6.5kg |
Carton size | 505*255*290mm/pcs |
Product Overview
The SENIX Petrol 54cc Rear Handle Chainsaw is a high-performance, professional-grade chainsaw designed for both homeowners and landscaping professionals. Equipped with a robust 54cc two-stroke engine producing 2300W of power, it delivers fast, efficient cutting for a wide variety of wood types, from softwood to medium-density hardwood. Its 20" Oregon® bar and chain ensure precise, clean cuts with minimal effort, while the side chain tensioning system allows quick, tool-free adjustments to maintain optimal cutting performance.
Built for durability and long-term use, the chainsaw features a high-performance Walbro® carburetor for smooth fuel delivery and consistent power output. The NGK® spark plug and ergonomic easy-start system allow the engine to start quickly and reliably with minimal effort. User comfort is enhanced with a superior shock absorption system that reduces vibration and fatigue during extended operations. Additional maintenance-friendly features, such as snap-lock cylinder heads, combined dampers, and easy-access oil fillers, simplify routine upkeep, ensuring long-term reliability and performance.
This chainsaw is ideal for cutting firewood, pruning trees, trimming branches, and general property maintenance. Its durable construction, precision cutting, and reliable performance make it a dependable tool for tackling demanding outdoor tasks safely and efficiently.
Usage Scenarios
Cutting firewood and logs for home use or small-scale forestry.
Tree pruning, trimming, and branch removal.
Clearing fallen branches after storms.
Suitable for landscaping and property maintenance.
Unrecommended Conditions
Cutting extremely hard timber beyond the engine/bar capacity.
Using on wet or slippery slopes where stability is compromised.
Indoor operation due to exhaust emissions.
Continuous heavy-duty operation without breaks, which can overheat the engine.
Cutting metal, stone, or non-wood materials.
SENIX Warranty at a Glance
Lithium Power Tools: 5 YEARS
Lithium Batteries & Chargers: 3 YEARS
Petrol Products: 2 YEARS (home) / 6 MONTHS (commercial)
AC Corded Products: 2 YEARS
Power Stations: 2 YEARS
Covers defects in materials and workmanship under normal use. Full terms available in the SENIX warranty policy.
Can I adjust the chain tension without tools?
Yes, the chainsaw features a side chain tensioning system for quick adjustments.
What is the recommended fuel mixture?
Gasoline to two-cycle oil ratio of 25:1.
Is it easy to start?
Yes, with the NGK® spark plug and easy-start engine/starter design, it starts quickly with minimal effort.
What is the cutting capacity?
The 20" Oregon® bar and chain allow cutting branches and logs up to the engine’s power capacity.
How heavy is the chainsaw?
Net weight is 6.5 kg (tool only), making it manageable for extended use.
