A well-maintained garden or yard requires not only good care but also the right tools to ensure that the job gets done efficiently.
One essential tool that every gardener or homeowner should have is a trimmer, but choosing the best line trimmer cord can often be a confusing task. There are several factors to consider when picking the right line to enhance longevity and performance.
This article will guide you through these key factors so that you can make an informed decision.
Relevant Properties of a Trimmer Line
When it comes to selecting the best line, certain properties should be evaluated to ensure longevity and efficiency. The diameter or thickness of the line, the shape, and the material used can impact not only the effectiveness of your trimmer but also its overall lifespan.
Key Criteria for Choosing a Trimmer Line
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Type of plants to be cut – Are you cutting soft grass, or do you need to tackle tough weeds and shrubs? The type of vegetation you need to trim plays a big role in deciding the thickness and shape of your line.
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Engine power – Your brushcutter or trimmer’s engine power determines how thick of a line it can handle. Using a line too thick for a low-power engine can lead to poor performance and possible damage.
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Frequency of use – Frequent use requires a more durable line that can withstand the wear and tear of regular trimming.
Thickness of the Trimmer Line
One of the most crucial factors to consider when choosing a line is its diameter or thickness. The lines come in a variety of diameters ranging from 1.2mm to 4.5mm.
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Thin lines (1.2mm - 2mm) are perfect for small grasses and light vegetation, offering precision cutting without putting too much strain on your engine.
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Medium thickness lines (2.2mm - 3mm) are ideal for dense grass and weeds, making them the go-to option for most homeowners.
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Thicker lines (above 3mm) are designed for tough vegetation such as brush or shrubs, and they require a more powerful engine for optimal performance.
Diameter and Brushcutter Displacement Guide
The diameter of the line should align with the engine displacement of your brushcutter or trimmer. Here’s a quick guide:
|
Displacement |
Diameter Trimmer Line |
|
< 20cm³ |
1.2 – 1.4mm |
|
20 – 25cm³ |
1.6 – 2.2mm |
|
25 – 35cm³ |
2.3 – 2.7mm |
|
35cm³ |
2.7 – 3mm |
|
40cm³ |
3 – 3.5mm |
|
40 – 50cm³ |
3.5 – 4mm |
|
> 50cm³ |
3.5 – 4.5mm |
Engine Power & Trimmer Head Compatibility
Trimmer lines need to match both the engine power and the trimmer head compatibility. If the line is too thick for the engine, it can slow down the engine, causing inefficiency or even damage. Conversely, using a thinner line in a high-powered engine results in less efficient cutting and increased fuel consumption.
Trimmer Line Shapes
The shape of your line plays a huge role in its cutting efficiency. There are several different shapes to choose from, each with its own set of advantages and disadvantages.
Round Profile
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Advantages: The round profile is the most commonly used and is highly durable, making it suitable for general trimming. It resists wear and breakage well.
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Disadvantages: The round profile may not be as efficient in cutting thick or tough vegetation.
Square Profile
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Advantages: Square trimmer lines are excellent for heavy-duty trimming, especially when cutting through bushes or dense weeds. The flat edges provide a more aggressive cut.
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Disadvantages: The cutting action isn’t as smooth as round lines, and they may wear out quicker when used on hard surfaces.
Star-Shaped Profile
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Advantages: Star-shaped lines (or pentagonal) have multiple sharp edges that make them perfect for precision cutting and tackling tough weeds.
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Disadvantages: These lines are typically more expensive and require more frequent maintenance.
Twisted Profile
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Advantages: Twisted lines reduce vibration and air resistance, leading to a quieter operation and increased fuel efficiency. They’re ideal for thick weeds and heavy-duty tasks.
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Disadvantages: Twisted lines can be more expensive than standard round profiles.
Nylsaw Profile
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Advantages: Nylsaw lines have a saw-tooth design, making them very effective for cutting through scrubby plants and hard stems.
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Disadvantages: They are usually only available in larger diameters and require a powerful engine for best performance.
Material of Trimmer Lines
Most lines are made of nylon, a plastic material known for its durability and flexibility. However, high-performance materials like bi-material or composite blends have been introduced to improve strength and reduce wear.
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Nylon: The most commonly used material, known for being affordable, durable, and resistant to breakage. It is ideal for general trimming and lawn maintenance.
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Copolymer Nylon: A stronger version of nylon, typically used for tougher tasks like thicker grasses and brush.
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Titanium and Steel Blends: These materials are typically used in professional-grade lines that need to handle heavy-duty work.
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Oxo-biodegradable: An eco-friendly option for environmentally conscious gardeners, decomposing in 7-10 years.
Spool and Pre-Cut Lines
When choosing a line, consider whether you want a spool or pre-cut lines. Pre-cut lines are convenient and save time, but spools allow you to cut your own lengths to fit specific needs.
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Pre-Cut Lines: Convenient for quick replacement, especially for auto-feed systems.
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Spools: These can be more cost-effective and offer flexibility when choosing the length needed.
Conclusion
To sum up, choosing the right line trimmer cord is a matter of understanding your needs and the type of vegetation you're cutting and ensuring compatibility with your equipment.
By considering factors such as thickness, shape, material, and engine compatibility, you can extend the life of your trimmer and improve cutting efficiency.
👉 Need help picking the right trimmer line for your yard? Contact us here and speak to one of our experts!
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FAQs
1. What thickness line should I use for my brushcutter?
The right diameter depends on your engine displacement. For example, use 1.2–1.4mm lines for small engines (<20cc) and 3.5–4mm lines for larger engines (>50cc).
2. Which line shape is best for rough vegetation?
For thicker grasses and shrubs, square or nylsaw profiles are more effective, offering increased durability and precision.
3. Are twisted trimmer lines better than round ones?
Yes, twisted lines are more efficient, quieter, and provide a cleaner cut than standard round lines, though they may be pricier.
4. Can I use any line in a standard trimmer head?
No, only lines up to 3mm are suitable for standard heads. Larger lines require specialised heads.