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Description
12180 – Rotary Trimmer Line .105", 5 lb Spool, Black Vortex | Genuine OEM Rotary Part
The Rotary® 12180 Black Vortex trimmer line is a genuine OEM, heavy-duty cutting line designed for professional and commercial trimming applications. With its vortex-shaped profile, this line delivers aggressive cutting action, improved airflow, and reduced drag for smoother operation and extended line life.
Built for high-torque, high-RPM trimmers, the .105" diameter makes this line ideal for tackling thick grass, heavy weeds, and demanding landscaping conditions.
Product Details
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Manufacturer Part Number: 12180
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Brand: Rotary®
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Part Type: Trimmer Line
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Diameter: .105"
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Spool Weight: 5 lb
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Packaging: Spool
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Shape: Vortex
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Size: Large
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Color: Black
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OEM Status: Genuine Rotary replacement part
Function
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Delivers aggressive cutting performance
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Handles thick grass and heavy weeds
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Reduces drag and vibration compared to round line
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Improves airflow for cleaner trimming
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Resists breakage and premature wear
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Designed for professional, high-output use
Compatible Equipment (Common Applications)
This trimmer line is commonly used on:
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Gas-powered string trimmers rated for .105" line
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Commercial landscaping equipment
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High-torque trimmer heads
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Heavy brush, tall grass, and edge maintenance
Packaging & Logistics
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Packaging: Large spool
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Spool Weight: 5 lb
⚠️ Always confirm your trimmer head supports .105" diameter line before installation.
Installation Notes
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Cut line to the correct length for the trimmer head
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Follow trimmer manufacturer loading instructions
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Store spool away from direct sunlight and excessive heat
Signs Trimmer Line Should Be Replaced
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Frequent line breakage
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Reduced cutting efficiency
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Frayed or brittle line
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Uneven trimming results
The Rotary® 12180 Black Vortex .105" Trimmer Line is a professional-grade OEM solution for landscapers who need maximum durability and cutting power in tough trimming conditions.

