Mulching
Possibility of work of a lawn-mower in the mode of a mulching.
Mulching is the chopping and automatic spreading of mowed grass over the site. This is one of the most convenient and at the same time practical methods of vegetation disposal. So, it does not need to be collected, and the resulting coating (mulch) performs a number of useful functions: it fertilizes the soil, reduces its heating and evaporation of moisture in hot weather, and also keeps the top layer loose.
Note that some lawn mowers allow you to use a nozzle purchased separately for mulching. However, such models are not included in this category: mulching in our catalog is indicated only for models that support this function out of the box.
Max. speed (self-propelled)
The maximum travel speed of the self-propelled lawnmower (see "Features") during operation.
Other things being equal, a faster model spends less time on work, especially when it comes to simple tasks. On the other hand, fast movement requires appropriate engine power, which in turn affects weight, cost, and electricity/fuel consumption. In addition, if we are talking about a traditional design lawn mower, when choosing, you need to sensibly evaluate your ability to “keep up” with the device. However, such models rarely reach speeds above 7 km/h — this is a quick step that is not a problem for a more or less healthy person. In addition, self-propelled units often provide speed adjustment (see above). But riders (see "Type"), where the operator rides on the unit, can reach higher speeds — about 13 – 14 km/h.
Note also that for the same engine power, higher speed means less power at the working head. So if speed is not of particular importance, it is better not to make a margin for speed, but to take a relatively slow, but “high-torque” device.
Motor model
Model of the engine installed in the lawn mower. The main performance data of the engine is usually indicated in the general data for the unit. However, knowing the exact name of the motor, you can find more detailed information on it — from specific data to reviews and reviews. Also, data on the engine model can be useful when searching for spare parts or consumables.
Motor power
Lawnmower engine power expressed in watts. This designation is used absolutely for all electric models (see "Engine type"), and it is also often found in gasoline and diesel units along with horsepower (these units are clearly related, 1 hp is about 735 watts).
In general, the more powerful the engine, the more performant the mower and the better it will cope with heavy work such as cutting thick grass, bushes, etc. On the other hand, high power has a corresponding effect on fuel / electricity consumption, as well as the weight and price of the engine. In addition, note that the power requirements depend on the type of mower itself and its engine (see above for both). For example, for most
robots, the power
does not exceed 500 W — more, taking into account specialization, is not required, besides, otherwise the devices would turn out to be too bulky and heavy. Trimmers and lawn mowers of similar power are only electric, and the power limit for power tools is
2500 – 3000 W when powered from the mains and
1500 – 2000 W for battery models. But in gasoline tools, the minimum power is about
500 – 1000 W for trimmers and
1000 – 1500 W for mowers; the maximum value can exceed
4 kW.
Detailed recommendations for choosing a lawn mower d
...epending on its type and features of the planned work can be found in special sources.Noise level
The level of noise produced by the device during operation. Usually, a certain average indicator is indicated in the characteristics — in the standard mode of operation; however, the actual values usually do not differ much from the claimed ones.
The lower the noise level, the more convenient the unit to use and the less tired the operator. In the case of lawn mowers, this is especially true, since such equipment is quite noisy — even the quietest models (some robots) give out about 47 – 48 dB, which is comparable to talking at an average volume. Note that the decibel is a non-linear quantity, and it is easiest to evaluate the actual loudness using comparative tables. Here is the simplest table for the values found in modern lawn mowers:
— 60 – 65 dB — talking in raised tones at a distance of about 1 m;
70 dB — loud conversation of several people at the same distance;
75 dB — loud laughter at a distance of 1 m;
80 dB — motorcycle engine, medium power vacuum cleaner.
90 dB — loud screams, freight car at a distance of 7 – 10 m;
100 dB — a subway train or a loud car signal at a distance of 5 – 7 m, an industrial workshop;
110 dB — tractor engine at a distance of about 1 m.
In addition to subjective sensations, there are specific sanitary standards that limit the impact of strong noise. So, according to European standards, noise of 85 dB is allowed to be heard without protective equipment for 8 hours, 91 dB — 2 hours, 97...dB — half an hour, and 103 dB — only 7 minutes. So when choosing a unit, you should take into account the duration of work with it — with high noise, you may need protective headphones.
