54.5cc 2-Stroke 51cm(20'') Chain Saw
CSTS-M5-EU
(5.0)KEY FEATURES
Effective Shock Absorption System – protects arms and hands, reducing strain during extended use
Side Chain Tensioning – allows quick, easy adjustments without complex tools
Combined Dampers, Switches & Oil Filler Pumps – simplifies startup and operation
Snap-Lock Cylinder Heads – save time when cleaning or replacing spark plugs
Optimized Engine & Starter Design – enables quick, low-effort startups every time
Powerful 54.5CC Two-Stroke Engine – delivers 2.3 kW of reliable cutting power
TECHNICAL PARAMETERS
Model | CSTS-M5-EU |
Engine | 54.5CC Two-Stroke |
Rated power | 2.3kw |
Bar Length | 51cm |
Engine Idle Speed | 3000±300 RPM |
Engine High Speed | 11500±300 RPM |
Fuel mixture ratio | 550ml |
Fuel Tank Capacity | 260ml |
Easy to start | Yes |
Weight(Only Body) | 14kg |
Color Box Size（D*W*H） | 505*255*290mm |
SUPPORT
Product Overview
The SENIX 54.5cc 2-Stroke 51cm (20") Chain Saw is designed for users who need a dependable, high-performance tool for challenging cutting tasks. Powered by a robust 54.5cc two-stroke engine with a rated output of 2.3 kW, it delivers the cutting force necessary for demanding jobs. Operating at an idle speed of 3000 RPM and a maximum speed of 11,500 RPM, this chainsaw ensures precise control at low speeds and aggressive performance when tackling thicker logs.
Operator comfort is a priority, with the effective shock absorption system reducing strain on arms and hands during long work sessions. The side chain tensioning mechanism allows quick and effortless adjustments, ensuring continuous cutting efficiency without downtime. Starting is made easy with the combined dampers, switches, and oil filler pumps, alongside an optimized engine and starter design that requires minimal effort to fire up. For maintenance, snap-lock cylinder heads provide fast access to spark plugs, reducing service time and extending machine life.
With its 20" (51cm) bar length, this chain saw delivers extended reach and cutting capacity, making it suitable for tree felling, firewood preparation, and professional landscaping. Its sturdy 14 kg body ensures stability and durability, while the compact box size (505 × 255 × 290 mm) offers convenient storage and transport.
Engineered for both professional contractors and demanding homeowners, the SENIX 54.5cc chain saw delivers the perfect balance of power, safety, and ease of use—making it a reliable companion for any heavy-duty cutting project.
Usage Scenarios
Forestry & Logging: Felling medium to large trees, cutting logs for processing
Landscaping & Maintenance: Trimming overgrown trees, storm cleanup, and firewood cutting
Professional Use: Suitable for contractors, arborists, and farm maintenance tasks
Home Use: Ideal for property owners managing large yards, woodlots, or rural estates
Unrecommended Conditions
Continuous Heavy-Duty Industrial Use: Not designed for round-the-clock commercial sawmill work
Frozen or Extremely Hard Wood: May cause excessive wear on the chain and bar
Wet, Rainy, or Snowy Weather: Increases risk of slipping and unsafe operation
Incorrect Fuel Mix or Old Fuel: Can damage the two-stroke engine and reduce performance
Improper Storage: Leaving fuel in the tank for long periods or storing in damp conditions may harm the machine
Warranty Information
We offer a comprehensive warranty policy tailored to the specific requirements of different countries and regions. Our warranty coverage is designed to ensure customer satisfaction and product reliability across all markets. For detailed information regarding the terms, duration, and service procedures applicable in your location, please get in touch with us directly. Our team will provide you with a complete warranty illustration and support as needed.
FREQUENTLY ASKED QUESTIONS
- Q1: How does the shock absorption system help me?
A: The effective shock absorption system reduces vibrations transferred to your hands and arms, allowing longer, more comfortable operation with less fatigue.
Q2: How do I adjust the chain tension?
A: Use the side chain tensioning system, which allows fast and easy adjustments without needing complicated tools—keeping the chain secure and efficient.
Q3: What makes starting this chainsaw easier?
A: The combined dampers, switches, and oil filler pumps, along with the optimized engine and starter design, ensure smooth, quick starts with minimal pulling effort.
Q4: What maintenance is required?
A: Regularly clean or replace the air filter, keep the bar and chain lubricated, and check chain tension. The snap-lock cylinder heads make spark plug replacement faster and easier.
Q5: What is the cutting capacity of this chainsaw?
A: With its 51cm (20") bar length, this chainsaw is capable of cutting medium to large logs, making it suitable for forestry, firewood, and property maintenance tasks.
Q6: What type of fuel mixture should I use?
A: Use a two-stroke oil and gasoline mixture according to the specified 550 ml fuel mixture ratio, and always use fresh fuel for best performance.
Q7: Is this chainsaw suitable for professional work?
A: Yes. With its 14 kg robust build, powerful engine, and 20" bar, it is designed for demanding tasks, making it suitable for professional forestry, landscaping, and farm use.
