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Comparison Vitals BK 3108-4a vs Vitals Master BK 3109-4a

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Vitals BK 3108-4a
Vitals Master BK 3109-4a
Vitals BK 3108-4aVitals Master BK 3109-4a
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Main
Four stroke engine. Convenient line replacement. Three attachments included (blade knife, line reel and saw blade). Backpack strap.
Typegrass trimmergrass trimmer
Motor typepetrolpetrol
Mowing
Cutting width43 cm43 cm
Trimmer blade width25.5 cm25.5 cm
Cutting systemrotaryrotary
Trimmer design
Motor locationtoptop
Shaft typestraightstraight
Handle typebike handlebike handle
Line diameter2.4 mm2.4 mm
More features
backpack
shoulder
In box
Nozzles
2-tooth blade
spool of line
saw blade
2-tooth blade
spool of line
saw blade
Motor
ICE type4-stroke4-stroke
Motor power1.1 hp1.1 hp
Motor power800 W800 W
Fuel tank volume0.7 L
0.65 L /oil tank volume — 0.07 L/
General
Deck materialplasticplastic
Noise level114 dB114 dB
Weight7.9 kg9 kg
Added to E-Catalogjuly 2021june 2017

More features

Adjustment of the tilt of the rod. Possibility to tilt the rod or the working head relative to the rod. The setting will come in handy for mowing grass in hard-to-reach places. Trimmers with this function are much more convenient to work under swings, benches and garden furniture. Also, by adjusting the tilt of the rod, you can adjust the grip of the trimmer to the height of the user.

Telescopic rod. Possibility of increasing the length of the trimmer by extending the rod. Due to design features, this solution is available only for models with a lower engine and helps to maximally adjust the device for a person of any height.

Collapsible rod. Possibility to disassemble the trimmer rod into several parts. This feature greatly simplifies storage and transportation: packing, carrying and transporting side-by-side components is easier than a solid long rod. In theory, this design is less reliable than a non-removable design, but trimmers are usually not subjected to such high loads that this would be noticeable.

- Belt. The strap for carrying the trimmer is a shoulder or backpack strap. This design significantly simplifies the operator’s task and reduces operator fatigue: carrying it with a belt is not as tiring as holding the tool in your...hands. The shoulder strap is supposed to be worn over one shoulder. It helps you control the trimmer better and reduces fatigue, especially during long periods of use. A more complex backpack strap system allows you to distribute the weight of the tool on both shoulders and back. In this implementation, the belt will not slip off the shoulder when wearing the trimmer. Please note that in models without a belt, it may be possible to purchase it separately. However, it is easier (and often cheaper) to immediately buy a tool with this accessory.

Limit bracket. The bracket acts as a limiter and is designed to protect tall (necessary) vegetation from mowing. Those. you can extend a small structural element at the base of the rod, which, when approaching the bushes, will move them away, thereby not cutting them off. The bracket will also be appropriate when mowing an area with a fence, decorative landscape with many elements that can be damaged during mowing, or can once again “shorten” the fishing line by breaking its ends.

Rotating head. Possibility of rotating the trimmer working attachment on the rod. Typically this function is used to move the cutting system from a horizontal to a vertical position. Vertical cutting can be useful, for example, for leveling edges and creating borders in lawns.

Edging roller. The roller is necessary for a neat “haircut” between the lawn and the sidewalk. It is found in models with a rotating head and is designed for more comfortable work. Since the device does not need to be suspended, leaning on the roller makes it much easier to edge flower beds, decorative elements on the lawn, borders, etc.

Support rollers. Special rollers mounted on the cutting head of the trimmer. Thanks to such rollers, you can rest the head on the ground and roll the tool in front of you - this is more convenient than carrying it “on yourself”. Another advantage is that the rollers support the working attachment at the same height, which means that mowing is as accurate as possible, almost like using a regular lawn mower (with all the advantages of a trimmer). The main disadvantages of models with rollers are the high cost, as well as increased weight, which makes it difficult to work “off the ground.”

Fuel tank volume

The volume of the fuel tank in a gasoline or diesel mower (see "Engine type").

A large tank allows you to work longer without refueling, but an excessive increase in capacity affects the dimensions and weight of the entire unit. So manufacturers usually select this indicator taking into account the power and fuel consumption of a particular engine, and in general, the volume of the tank is not critical when choosing. However, knowing the tank capacity and fuel consumption (see above), you can estimate how much one refueling will approximately last.
Vitals BK 3108-4a often compared
Vitals Master BK 3109-4a often compared