Comparison Oleo-Mac Sparta 25TR vs Oleo-Mac Sparta 25

The width (diameter) of the trimmer knife characterizes the size of the paddle knife (or saw blade). Such a nozzle has a smaller capture width than a fishing line, however, it allows you to mow more dense thickets, including shrubs.

— Direct. In straight bar trimmers, the rotation from the engine is transmitted to the cutting tool using a straight rigid shaft. This design is considered optimal for medium to high power trimmers, although the straight stem shape may not be perfect in terms of ease of use.

— Curved. A curved rod may be more convenient to use than a straight one, however, such trimmers have low power due to the fact that the rotation from the engine to the working tool is transmitted to them using a thin metal cable — such a transmission is not designed for high loads.

The type of handle provided in the design of the trimmer or combisystem (see "Type").

The choice for this parameter depends primarily on the personal preferences of the user, however, there are also quite objective differences between different types. The types themselves can be:

— Bicycle. A handle in the form of a pair of characteristic "horns" on either side of the trimmer bar, reminiscent, in accordance with the name, of a bicycle handlebar. This design allows you to comfortably mow the grass and perform other similar work; it is good in that the user's hands are in the most natural position when holding the tool. In addition, we note that the handles are convenient for both right-handers and left-handers. The disadvantage of models with bicycle handles is the relatively large weight and dimensions, as well as poor suitability for cutting branches and other work "at height". However, in the case of trimmers, such a need arises extremely rarely (especially since there are specialized varieties of garden tools for this — brush cutters and pole saws). Therefore, it is this option that has received the greatest popularity in modern trimmers.

— Loop -shaped. The handle, which looks like a characteristic loop, usually in the shape of the letter D. The role of the second handle in such a tool is usually played by the back of the bar, and the trimmer controls are also located there....In general, this design is considered less convenient than a bicycle one: the user has to either hold the tool with the barbell to the side, or pull one hand back strongly. On the other hand, the loop-shaped handle gives good vertical manoeuvrability and allows you to work both at ground level and much higher, and you can easily change the height of the nozzle. As a result of all this, although this option is less popular than the “bike”, it is still quite common, mainly on relatively light and low-power trimmers.

- Bladed knife. A knife in the form of a pair of blades, rotating around a vertical axis in the manner of a propeller blade. Two blades are the most popular, almost standard option for rotary lawn mowers (see "Cutting System"). Note that in the case of trimmers, the use of a knife allows you to achieve higher productivity and better cope with thick grass than using a line reel. On the other hand, blades do not tolerate contact with stones and other hard objects very well; in case of such troubles, various tricks can be provided (for example, an automatic engine brake).

- Spindle knife. Nozzles used in spindle-type lawn mowers. For more information about such units, see "Cutting system", here we recall that spindle knives are inferior to bladed ones in terms of performance and efficiency in thick grass, however, they provide a "cleaner" cut, which allows you to give the lawn the most accurate appearance. So this option is well suited for regular cutting of relatively sparse, well-groomed vegetation.

- Reel with fishing line. Most often used in trimmers (see "Type"). According to the general principle of operation, it is similar to a bladed knife (see above), however, in this case, the working tool is not blades, but pieces of thick fishing line rotating at high speed. The main advantage of the fishing line over a bladed knife is its almost complete insens...itivity to collisions with stones and other solid objects: such a “blade” will only bend from impact and literally immediately straighten due to centrifugal force. True, such nozzles cope with thick stems somewhat worse, but in practice it all depends on the thickness of the fishing line (see above) and the speed of its rotation.

- Cultivator. Nozzle designed to loosen the soil. Outwardly, it is a set of gears mounted on a horizontal axis with teeth of a specific bent shape. Due to the rotation of these wheels, loosening is carried out. Combisystems are mainly equipped with such nozzles (see "Type"). At the same time, the width of the cultivator is usually small, it is poorly suited for full-fledged garden work, but it can be useful when processing a small flower bed or several beds.

- Saw blade. Attachment for cutting relatively thick, stiff stems (e.g. bushes or small tree branches). Mounted mainly on trimmers (see "Type"). Outwardly, such a nozzle is very similar to the working element of a circular saw: it uses a rotating rim with characteristic teeth along the edges. The rim may have holes - to reduce weight.

- Scissor mower. In this case, it means a special attachment, most often used in mowers (see "Type"). Such a nozzle has the form of a characteristic horizontal "comb" with two rows of teeth moving relative to each other. Its design is described in more detail in the “Cutting system - Scissor” section, here we note that hay trimmers are indispensable when working with dense vegetation and thick stems, they easily cope with thickets that are “too tough” for other attachments.

- Without nozzles. The absence of any nozzles in the regular configuration of the lawn mower. It is assumed that the customer will purchase them separately for specific needs.