Comparison STIHL RLE 240 vs Stiga SV 415 E

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.

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.

The highest processing height provided by the aerator.

This parameter describes the maximum height above the lawn surface that the working head can be raised to. It is of practical importance only for models with scarifier functions (see "Type"): it is this type of aerator that allows you to leave the space between the working nozzle and the soil surface untouched during operation. This can be useful, for example, when removing debris from a previously fertilized lawn. But in the case of verticutters, the maximum height only affects the convenience of transportation: the higher the nozzle can be raised, the higher obstacles the unit can overcome without hitting it with knives.

Rotation speed of the aerator shaft in normal operation.

Manufacturers select the shaft speed in such a way that the device is guaranteed to be able to cope with the tasks for which it is designed. So in most cases, this parameter is more of a reference than practically significant. At the same time, for verticutters (see "Type"), it can also have a practical meaning: lower speed, with the same power, provides higher tractive effort and allows you to better cope with dense soils and thick rhizomes. So for such conditions, it is worth choosing a model with lower revolutions, and for a favorable environment, on the contrary, higher (high revolutions have a positive effect on performance).

The type of waste bag provided with the aerator.

— Hard. Bags made of a hard material, usually plastic. Such containers are convenient in unloading, moreover, they are more durable than soft ones: a sharp object that has fallen into such a bin will only scratch the wall. The main disadvantages of hard bags are quite heavy and bulky — they cannot be folded or rolled up, as is the case with soft ones. In addition, in the absence of special indicators (see below), it is more difficult to control the filling of such a container than a soft container — in fact, you have to remove it every time and check the amount of garbage collected.

— Soft. Soft garbage bags are light in weight and easy to store and transport: during non-working hours, such a bag can be folded compactly, and it will not take up much space. In addition, the dimensions of the soft bin are directly dependent on the amount of content in it — in other words, the bag increases in size only as it is filled. In fact, this allows you to monitor the filling in the absence of special indicators (in fact, they are not provided in such models at all), and in general, the small size of the bag is convenient when working. On the other hand, emptying such a container is more difficult than a rigid one, and sharp, hard objects such as twigs, glass fragments, etc. can pierce soft material.

— Is absent. The complete absence of a garb...age collector in the kit. In such cases, a garbage bag must be purchased separately; on the other hand, its type and volume can be chosen at your discretion. And in some situations, a waste bin is not required at all, and its purchase would only be an unnecessary waste of money.

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.

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.