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Comparison Husqvarna S 138 i vs Daewoo DSC 3840Li

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Husqvarna S 138 i
Daewoo DSC 3840Li
Husqvarna S 138 iDaewoo DSC 3840Li
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Typecombinedcombined
Motor typeelectric (battery)electric (battery)
Specs
Working width37.5 cm38 cm
Max. processing depth8 mm10 mm
Max. processing height5 mm5 mm
Processing depth adjustmentsynchronoussynchronous
Shaft speed3200 rpm3200 rpm
Design
Working mechanism16 knives / 44 spring claws16 knives / 44 spring claws
Bag typesoftsoft
Bag volume45 L55 L
Handle height adjustment
Motor
Motor power1280 W
Battery
Supply voltage36 V40 V
Compatible batteriesBLi20, BLi200, BLi300DABT 2540 Li, DABT 4040 Li
Batterynot includednot included
General
Materialplasticplastic
Front wheel diameter17.8 cm
Rear wheel diameter15.2 cm
Noise level75 dB
Weight
19.5 kg /without battery/
14.5 kg
Added to E-Catalogaugust 2019september 2018

Working width

The width of the strip processed by the aerator in one pass. The higher this indicator, the faster the device works, the fewer passes will have to be made to process a certain area. On the other hand, a wide grip noticeably affects the dimensions of the entire structure and makes it difficult to work in hard-to-reach places, if not impossible. Therefore, when choosing a model in terms of working width, it is worth considering not only the overall dimensions of the site, but also its configuration and the presence of tight areas — sometimes it is preferable to sacrifice the performance of the aerator for the sake of its manoeuvrability and patency.

Max. processing depth

The greatest depth to which the aerator nozzle is able to penetrate the ground during operation.

This parameter is relevant primarily for models that support verticutter functions (see "Type") — the very format of operation of such units implies "biting" into the ground. For scarifiers, the processing depth is often not indicated at all, because. they work mostly above the surface.

Bag volume

The total volume of the garbage collection bag provided with the aerator.

The larger the bag, the more garbage it can hold, the less often it will have to be emptied. On the other hand, the weight and dimensions of a capacious container will also be considerable (this is especially true for rigid varieties, in which the size does not depend on fullness — see "Bag Type"). Yes, and carrying too much garbage “with you” is not always convenient, especially with the small size and weight of the unit itself. Therefore, manufacturers, usually, choose this parameter taking into account the specifics of the use of the aerator. So, in low-power models designed for small areas, the volume of the bag is also small, and in high-performance professional devices it can exceed 50 liters.

Motor power

The power of the aerator motor, expressed in watts. Today, the watt is the common unit of power and is used for both electric and petrol models (see "Engine type"). In general, the more powerful the motor, the higher the performance of the unit, the greater the depth of processing and the working width (see above) can be provided in the aerator; however, the consumption of electricity / fuel also directly depends on the power. Therefore, when choosing an engine for their equipment, manufacturers proceed from a reasonable compromise between these properties, and in general, engine power allows you to evaluate the performance of the unit and its suitability for large volumes of work.

Supply voltage

Nominal voltage of the accumulator installed in the aerator of the appropriate design (see "Engine type").

When choosing, this parameter is purely reference: manufacturers select the voltage so that it meets the needs of a particular unit. And after the purchase, voltage data may be needed only when looking for a spare / replacement battery or a third-party charger.

Compatible batteries

The name of the battery that is compatible with the device. It helps to buy a spare or find a suitable one in case of a breakdown of the main one.

Front wheel diameter

One of the parameters on which the diameter of the wheels depends is the weight of the unit: a heavy powerful aerator requires large wheels, and a light model can get by with small ones. In addition, the larger the wheels, the easier they cope with various obstacles, the better the car is suitable for difficult terrain, where you have to move through bumps, stones, etc. However, the downside of such cross-country ability is an increase in the cost of the aerator.

Rear wheel diameter

One of the parameters on which the diameter of the wheels depends is the weight of the unit: a heavy powerful aerator requires large wheels, and a light model can get by with small ones. In addition, the larger the wheels, the easier they cope with various obstacles, the better the car is suitable for difficult terrain, where you have to move through bumps, stones, etc. However, the downside of such cross-country ability is an increase in the cost of the aerator.

Noise level

The noise level produced by the aerator during operation. It is worth noting that this indicator can be indicated in different ways: some manufacturers give the maximum noise level in the characteristics, others give average values \u200b\u200bduring normal operation, etc. Anyway, this information allows you to assess the noise level of the unit and, if necessary, provide protective measures — for example, get headphones in advance.

When evaluating specific loudness values, note that the decibel used to indicate the noise level is a non-linear value. Therefore, it is easiest to evaluate specific values using comparative tables. Here is a simplified table for the range that most modern aerators fit into:

70 dB — a conversation of several people in raised tones.
75 dB — high power vacuum cleaner.
80 dB — traffic noise on a busy street.
85 dB — motorcycle engine with muffler in close proximity;
90 dB — freight car at a distance of 7 – 10 m;
95 dB — noise in the subway car on the stage;
100 dB — industrial shop.
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