Best Automatic Feed System Grass Trimmers of 2025

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For those who enjoy a perfectly manicured lawn, the Automatic Feed System Grass Trimmers are an excellent tool to consider. These trimmers are designed to make lawn maintenance more efficient by automatically feeding the cutting line as needed, eliminating the need for frequent stops to adjust the line. They are also lightweight, making them easy to manoeuvre around obstacles and difficult terrain. With a range of models available, they are suitable for all types of gardens and lawns, providing a convenient and effective solution for keeping your outdoor space looking neat and tidy.
At a Glance: Our Top Picks
Top 8 Automatic Feed System Grass Trimmers
INGCO 20V Grass String Trimmer with 45° Head
The INGCO 20V Trimmer is designed for convenience and efficiency in your garden care. It features a robust 20V lithium-ion motor, allowing you to tackle tough trimming tasks effortlessly. The ergonomic design includes a rubber-covered handle for a comfortable, non-slip grip, ensuring ease of use during extended periods. Additionally, the telescopic handle and adjustable ring grip provide you with the flexibility to customise the operating range to suit your needs, enhancing your trimming experience.
BLACK+DECKER 18V Cordless Grass Trimmer
The BLACK+DECKER Grass Trimmer offers a swift strimming experience with its 28cm cutting width, making it ideal for tackling larger areas quickly. The automatic single line feed system saves you time and effort, ensuring uninterrupted work. You can easily switch from trimming to wheeled edging mode with the improved Flip To Edge Mechanism, providing versatility for all your gardening needs. Additionally, the high torque E-Drive system allows you to power through tough, overgrown grass without clogging, making your task much easier.
FUXTEC 20V Cordless Grass Trimmer with Battery
The FUXTEC 20V Trimmer is an efficient tool perfect for maintaining small lawns. It features a 25cm cutting width and operates at 7000 RPM, allowing you to trim your grass quickly and effectively. The extendable telescopic handle ensures ergonomic use, making it comfortable for you to tackle any task. With its lightweight design, weighing only 2.2kg, you can manoeuvre it easily without straining yourself. Additionally, it operates quietly, making it suitable for use in noise-sensitive areas like residential neighbourhoods.
BLACK+DECKER 700W Electric Strimmer with AFS
The BLACK+DECKER GL7033-GB Strimmer is designed for efficiency and ease of use. With E-Drive technology, you can enjoy a high torque gear system that allows for a faster rate of cut, making your gardening tasks quicker. The Wheel Edge Guide ensures you achieve perfect edging along your lawns, giving them a neat finish. Its mid mount motor provides excellent balance, comfort, and control, allowing you to manoeuvre with ease. Additionally, the extra heavy duty line is ideal for tackling stubborn weeds, ensuring a thorough clean-up of your garden.
BLACK+DECKER 36V Cordless Grass Strimmer
The BLACK+DECKER Grass Strimmer offers precise cutting with its Trim & Edge feature, allowing you to effortlessly flip the head for a neat finish along borders. You’ll appreciate the edging guide wire, which ensures tidy lawn edges. The innovative AFS Automatic Line Feed System provides a hassle-free experience by automatically supplying line without interruption, saving you time. Plus, the brushless motor technology enhances power efficiency and extends runtime, making it a reliable choice for your gardening needs.
WORX WG157E 18V Cordless Grass Trimmer
The WORX WG157E Trimmer is designed for ease and efficiency. It quickly converts to an edger, allowing you to achieve clean edges around your garden without switching tools. Its lightweight and ergonomic design ensures comfortable use, reducing fatigue during longer gardening sessions. The hassle-free automatic line feed system means you won’t have to stop and adjust the line, making your trimming tasks quicker. With an easy grip handle and an auxiliary handle, you can enjoy better control and comfort while trimming your lawn.
BLACK+DECKER 36V Cordless Grass Strimmer
The BLACK+DECKER Grass Strimmer offers cordless convenience with its 36V battery, allowing you to work without the hassle of a power cord. Its brushless motor technology enhances power efficiency, giving you longer runtime for your gardening tasks. You can save time with the innovative AFS Automatic Line Feed System, which automatically feeds line as needed, so you can focus on trimming rather than stopping to adjust. The Trim & Edge feature ensures precise cuts, making it easy to maintain tidy borders and edges around your garden.
WORX WG183E.9 36V Dual Battery Grass Trimmer
The WORX WG183E.9 Grass Trimmer is designed to make your gardening tasks easier. Its ultra-lightweight and streamlined design ensures you can manoeuvre effortlessly, reducing fatigue during use. The dual line automatic-feed spool system automatically feeds the cutting line, saving you time and effort. With a quick, adjustable auxiliary handle, you can customise the grip to suit your comfort, allowing for precision trimming. Additionally, the on-board battery indicator lets you monitor battery levels, so you won't run out of power unexpectedly.
Frequently Asked Questions (FAQs)
1. How does the auto feed work on a string trimmer?
With an auto feed system, the trimmer will release more line whenever it starts to run short, based on an advanced internal system. The majority of models will have some kind of component that gauges the current length of the line and then releases more by taking advantage of the spinning taking place with the head.
2. What is an automatic feed trimmer?
Article Content. The Automatic Feed Spool (AFS) is the technologically advanced line feed system found on Black & Decker string trimmer products. Using centrifugal force, the system monitors the amount of line being used and feeds more line automatically as the cutting line shortens.
3. Is bump feed or auto feed better?
The bump-feed system offers the user the freedom to get more to cut with whenever he wants, which can be done on the fly. The automatic-feeding system draws out more line only when it reaches a certain shortness. ... If you need lots of line, then the bump-feed system will offer the best advantages.
4. How does flymo auto feed work?
The autofeed is a cleaver device that enables the machine to discharge a small length of line when the motor is turned on by means of a counterweight rotating, like a centrifuge. This enables the toothed spool to racthet round 1 tooth just as you would by pressing the manual feed.
During our automatic feed system grass trimmer research, we found 42 automatic feed system grass trimmer products and shortlisted 8 quality products. We collected and analyzed 66,347 customer reviews through our big data system to write the automatic feed system grass trimmers list. We found that most customers choose automatic feed system grass trimmers with an average price of £102.19.
The automatic feed system grass trimmers are available for purchase. We have researched hundreds of brands and picked the top brands of automatic feed system grass trimmers, including Ingco, BLACK+DECKER, Fuxtec, WORX. The seller of top 1 product has received honest feedback from 307 consumers with an average rating of 4.9.

Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.