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Comparison Foresta GS-750 Turbo vs Foresta GS-355

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Foresta GS-750 Turbo
Foresta GS-355
Foresta GS-750 TurboForesta GS-355
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from $126.44 up to $146.80
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Typepetrolpetrol
Designbackpackbackpack
Specs
Volume14 L25 L
Max. spraying distance
15 m /horizon / 12 m — vertical/
10 m
Hose length120 cm
Wand typewidenarrow
Wand materialplasticstainless steel
Tip materialbrass
Motor
ICE type2-stroke2-stroke
Cylinder volume42.7 cm352 cm3
Power1.7 hp2 hp
Power1.25 kW1.5 kW
Fuel tank capacity0.6 L
Starterby handby hand
General
Spray lock
Weight10 kg8.5 kg
Added to E-Catalogmay 2017april 2017

Volume

The nominal volume of the sprayer tank. Usually, in this case, the working volume is indicated, and not the full capacity (“for the cork”).

The more capacious the sprayer is, the more work can be done with it without refueling. On the other hand, a large volume accordingly affects the price, dimensions, and most importantly, the weight of the unit (and not only in a filled, but also in a “dry” state). Therefore, even with large volumes of work, it is sometimes more rational to use a relatively small unit, refueling it several times.

Detailed recommendations on the optimal volume of the tank for a particular situation can be found in special sources. With regard to specific values, in the most compact manual sprayers (see above), the capacity does not exceed 2 liters. Tanks for 2.1 – 5 liters can be found both in hand-held devices, and in pump-action and battery models (see "Type") with a shoulder carry. Sprayers for 5.1 – 10 liters are almost all made shoulder-mounted, the capacity of gasoline units actually starts from 10 liters, and the most capacious modern sprayers have tanks of more than 15 liters.

Max. spraying distance

The longest distance a sprayer can effectively spray a liquid or powder. Usually, the horizontal range is implied, however, for “long-range” models, values bare also given for vertical spraying — in such units, the difference between horizontal and vertical ranges can be very noticeable.

A “long-range” sprayer (for 10–15 m or more) is convenient in that it allows you to process a large area without moving, and also to reach high branches without using ladders. On the other hand, a long range requires appropriate power, which affects the price, weight and dimensions of the unit — despite the fact that such capabilities are not always required: for example, for a cramped greenhouse, an atomizer with a short range ( 5 – 10 m, and often and less) So it is worth choosing according to this indicator, taking into account the features of the planned work.

Hose length

The length of the hose supplied with the sprayer.

The longer the hose, the farther the spray tube can be reached without moving the sprayer itself. However, this is true mainly for wheeled and universal sprayers (see "Carrying type"). In shoulder-mounted units, the hose is usually selected in such a way that it is enough to comfortably hold the tube in your hand, and this parameter in such models most often does not exceed 150 cm.

It is also worth considering that long hoses can be quite bulky; however, this disadvantage is often eliminated by the use of spiral hoses, which are stretched to their full length only when necessary.

Wand type

The type of tube supplied with the sprayer. It should be noted that hand-held models (see "Type") for the most part are not equipped with tubes and this parameter is not indicated for them; in other cases, the options may be as follows:

— Narrow. A thin and rather long tube, colloquially "fishing rod". This is the most common option nowadays: the “rod” allows you to accurately dose the sprayed chemicals and at the same time is able to provide sufficient performance for most tasks. The spraying range of such devices is somewhat less than that of wide nozzles, however, it may well reach 12–14 m, so this moment is most often not fundamental. A more noticeable disadvantage of this option is the poor suitability for working with powder — this possibility is found only in single devices with narrow tubes.

— Wide. The wide nozzle allows you to supply liquid or powder in large quantities and under significant pressure, achieving high performance and range. This, of course, requires the corresponding power of the sprayer; therefore, this option is typical mainly for heavy gasoline models designed for large areas and/or high vegetation.

Wand material

The material from which the complete spray tube of the sprayer is made.

— Plastic. The key advantage of plastic over other materials used for spray wands is its low cost. In addition, this material is chemically inert and does not corrode, and also has a low weight. On the other hand, the rigidity of the plastic is not very high, which is why such tubes tend to bend, sometimes even under their own weight.

— Aluminium. Aluminium alloys combine good strength and lightness, such a tube is easy to work with, and it takes quite a strong blow or pressure to bend it. On the other hand, aluminium is expensive.

— Brass. In addition to strength and reliability (including resistance to bending), brass is notable for its excellent resistance to corrosion. The disadvantages of such tubes are the high price, as well as the rather large weight.

- Stainless steel. "Stainless steel" is notable primarily for its high strength and rigidity, which is superior to other materials, despite the fact that this material is relatively inexpensive. However, such tubes weigh much more than aluminium or plastic ones.

- Copper. According to the main operational properties, copper pipes are similar to brass ones: they are strong, reliable and durable. On the other hand, such tubes are relatively expensive and do not have fundamental advantages over the same "stainless steel". Therefore, this option is rarely found.

Tip material

The material from which the complete spray tip is made.

The most common tip material is plastic, which is used in the vast majority of atomizers. Therefore, this parameter is specified only in cases where the tip is made of another, more advanced material. One of the most popular of these options is brass — it is noticeably more expensive than plastic, but much stronger and more durable.

Cylinder volume

The volume of one cylinder in an internal combustion engine installed in a sprayer. In fact, we are talking about the working volume of the entire engine, because. in this technique, only single-cylinder internal combustion engines are used.

In general, a large cylinder volume allows you to achieve high power, but power also depends on some engine characteristics (primarily the type of internal combustion engine, see above). And the performance characteristics of the sprayers themselves with the same engine power can also be different. But what directly depends on the volume of the engine is fuel consumption: a larger volume, usually, requires more fuel.

Power

Engine power of the gasoline sprayer (see "Type") in horsepower.

Power directly affects the spraying range and the performance of the unit, according to this indicator, it is quite possible to assess the overall level of the device. However note that manufacturers can indicate this characteristic in different ways: some give the rated power (when the engine is running in normal mode), others give the maximum power (at peak load). Therefore, when choosing and comparing, it is worth considering not only this indicator, but also other basic characteristics.

As for horsepower, this unit is traditionally used to assess the power of an internal combustion engine. 1 HP approximately equal to 735 watts.

Power

Sprayer engine power in kilowatts. Watt (kilowatt) is a universal unit used for all types of engines, but in fact this parameter is indicated mainly for gasoline units (see "Type"). This is due to the fact that electric sprayers — even the most powerful and heavy ones — consume less than 1 kW, which does not create any problems with connecting to a conventional outlet; so for such units there is no need to specify engine power.

Power directly affects the spraying range and the performance of the unit, according to this indicator, it is quite possible to assess the overall level of the device. However note that manufacturers can indicate this characteristic in different ways: some give the rated power (when the engine is running in normal mode), others — the maximum (at peak load). Therefore, when choosing and comparing, it is worth considering not only this indicator, but also other basic characteristics.

As for specific figures, in the most modest models this figure does not exceed 1 kW ; 1.1 – 2 kW can be called the average value; and many gasoline sprayers are equipped with motors and more than 2 kW.
Foresta GS-750 Turbo often compared
Foresta GS-355 often compared