Products Description
Brush Cutter STL Trimmer Head - Bump-Feed Nylon Line Head for Gas String Trimmers & Brush Cutters
Universal Semi-Automatic Trimmer Head Compatible with STL-Series Brush Cutters - Dual-Exit Red Nylon Cutting Line
Brush cutter Trimmer head STL
The Brush Cutter STL Trimmer Head is a semi-automatic bump-feed cutting head engineered for gasoline-powered brush cutters and string trimmers across the STL product family and compatible universal shaft systems. Featuring a robust black nylon-reinforced housing, dual-exit red cutting line configuration, and a centre-bump line-advance mechanism, this trimmer head delivers reliable, consistent grass and weed cutting performance in residential, agricultural, and municipal maintenance environments. The bump-feed system allows operators to advance fresh cutting line with a simple tap of the head against the ground during operation - eliminating the need to stop the engine and manually re-thread line, keeping workflow uninterrupted across large trimming areas. The die-cast aluminium internal arbour and precision-threaded mounting interface ensure secure, vibration-resistant attachment to standard brush cutter gearbox outputs, while the impact-resistant polypropylene outer shell protects internal components from debris impact and UV degradation during outdoor use. Lightweight, field-serviceable, and compatible with standard 2.4mm nylon trimmer line, this head is a practical replacement and upgrade option for equipment operators and parts dealers worldwide.
Technical Profiles & Materials
1. Impact-Resistant Polypropylene Housing with UV Stabilisation The outer shell and spool body are injection-moulded from high-density polypropylene compounded with UV stabilisers, enabling the housing to resist surface degradation, colour fading, and brittleness from prolonged outdoor sun exposure. The material's impact resistance protects the internal spool and line from damage when the head contacts rocks, roots, and hard ground surfaces during bump-feed advancement - the highest-impact event in normal trimmer head operation.
2. Die-Cast Aluminium Arbour with Precision-Threaded Mounting Interface The central mounting arbour is die-cast from aluminium alloy, providing a lightweight yet rigid connection point between the trimmer head and the brush cutter gearbox output shaft. The arbour is precision-threaded to match standard M10×1.25 LH (left-hand) thread specifications common across STL-series and compatible brush cutter platforms, ensuring secure, back-out-resistant attachment under the counter-rotation forces generated during cutting.
3. Dual-Exit Bump-Feed Line Advance Mechanism The internal spool is engineered with a dual-exit line channel that feeds two independent cutting line strands simultaneously, maintaining cutting width symmetry and rotational balance. The bump-feed spring and indexing mechanism are calibrated to advance a precise increment of line per tap - preventing excessive line consumption from over-advancing while ensuring sufficient fresh line is always available to maintain cutting efficiency without engine bogging.
Technical Specifications
| ITEM | DETAILS |
| Type | Semi-automatic bump-feed dual-line trimmer head (STL series) |
| Application | Compatible with STL-series gasoline brush cutters and universal gearbox output shafts; suitable for lawn edging, grass trimming, weed control, and light brush clearing in residential, municipal, and agricultural settings |
| Code | 2401057 |
| Material | UV-stabilised polypropylene outer housing and spool; die-cast aluminium central arbour; hardened steel bump button insert |
| Details explanation | Dual-exit red nylon cutting line (2.4mm compatible); centre-bump semi-automatic line advance; left-hand threaded M10×1.25 LH arbour; field-serviceable spool - line reloading without tools; includes inner spool, outer housing, spring, and bump knob assembly |
| Brand Name | SeaSummer |
| Operating Temp | Rated for ambient operating temperatures of -10°C to +60°C (14°F to +140°F); UV-stabilised housing maintains structural integrity under continuous outdoor sun exposure |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Residential Lawn Edging & Garden Maintenance
Homeowners and professional gardeners rely on the STL Trimmer Head to deliver clean, precise cuts along fence lines, garden borders, flower bed edges, and paved surfaces where lawn mowers cannot reach. The bump-feed mechanism allows continuous trimming across an entire garden without stopping to reload line, while the dual-exit configuration maintains a consistent cutting width that produces a neat, professional finish around complex garden features.
Municipal Park & Roadside Grass Management
Local government maintenance crews and landscaping contractors managing parks, roadside verges, and public green spaces require trimmer heads that sustain high-cycle performance across full working days. The STL head's impact-resistant housing and field-serviceable spool design minimise unplanned downtime - crews can reload line in seconds without returning to the workshop - making it a practical choice for high-frequency municipal grass management programmes where equipment reliability directly affects maintenance schedules.
Agricultural Field Boundary & Weed Control
Farmers and rural landowners use brush cutters fitted with the STL Trimmer Head to manage vegetation along crop field boundaries, irrigation channels, orchard rows, and access tracks. The head's ability to handle dense weed stems and coarse grass alongside standard lawn grass makes it a versatile tool for mixed agricultural environments, while its universal gearbox compatibility means it can be fitted to existing brush cutter equipment without purchasing a new machine.
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
Trusted Partnership Power
YOUR PROFESSIONAL ONE-STOP SOURCE
FOR 10000+ OUALITY PARTS
Verified Factory Excellence
BACKED BY 200+ TRUSTED FACTORY PARTNERS
Production process
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FAQ
Q: Are you an impartial industrial components dealer or a direct China water pump factors factory?
A:We are a direct, ISO9001-certified engineering water pump components manufacturing facility and precision fluid-control factor manufacture exporter primarily based in China. We function our personal cleanroom injection molding bays, computerized ultrasonic welding arrays, computerized hydraulic stress check stations, and clean-room packaging lines, passing direct-factory wholesale price financial savings straight to your element procurement margins.
Q: Can your manufacturing unit furnish full certification forms for food-contact or consuming water compliance?
A: Yes, absolutely. For food, beverage, or scientific applications, our manufacturing unit makes use of one hundred percent virgin, un-recycled polypropylene resins accompanied by means of fabric traceability certificates. We mechanically furnish B2B purchasers with complete FDA compliance documentation, NSF-grade compound declarations, and RoHS/REACH chemical protection screening sheets to make certain clean clearance thru worldwide customs.
Q: Do you provide customization picks for distinctly corrosive fluids like sturdy acids or ozone?
A: Yes, we are a thoroughly succesful OEM/ODM supplier. For aggressive chemical or ozone environments, we can improve the 12x26.5mm valve configuration in our factory: substituting the general PP housing with top class PVDF (Fluoropolymer) and changing any steel springs with Hastelloy or whole springless gravity-ball architecture, making sure final chemical resistance.
Q: How do we impervious a pattern batch to execute computerized lifecycle and burst-pressure testing?
A: We relatively inspire complete laboratory contrast earlier than logging mass grant agreements. We can ship a pattern lot of 5-10 gadgets of our inventory 12x26.5mm take a look at valves for assessment (setup costs and DHL/FedEx air freight apply). Once the factors pass by your inner lifecycle verification and a formal wholesale quantity manufacturing contract or container run is locked in, the sampling charges are a hundred percent credited returned to your industrial balance.
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