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Comparison WOLF-Garten SDL 2800 EVO vs WOLF-Garten SDE 2800 EVO

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WOLF-Garten SDL 2800 EVO
WOLF-Garten SDE 2800 EVO
WOLF-Garten SDL 2800 EVOWOLF-Garten SDE 2800 EVO
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Shreddingbranches and leavesbranches and leaves
Motor typeelectric (mains)electric (mains)
Voltage230 V230 V
Specs
Shredding systemrollerblade
Max. shredded material diameter40 mm45 mm
Shredder speed46 rpm2800 rpm
Collector typehardhard
Waste container capacity50 L50 L
Full container indicator
Features
automatic feed
reverse system
automatic feed
reverse system
Motor power2500 W2800 W
Overload protection
General
Noise level92 dB108 dB
Transporting wheels
Materialplasticplastic
Weight30 kg30 kg
Added to E-Catalognovember 2014november 2014

Shredding system

The design of the tool used to grind the garbage entering the unit.

Knife. The main element of such systems, as the name implies, are special knives. Their design can be different: triangular blades with sharpening, rotating discs with several blades, etc. Anyway, this option is considered optimal for working with leaves, because. it ensures thorough and uniform processing of such waste. But with solid large branches, knife systems are less compatible; see "Crushing" for details.

Valkovaya. Also, such systems are called milling. Their action is based on the use of gears with large teeth, which, when rotated, “bite off” and crush pieces of the processed material. This allows you to effectively process thick dry branches, besides, the gears themselves draw the debris inside, in fact, providing automatic feeding (see below). But roll systems do not work well with leaves and other “soft” debris. Therefore, models of this design are usually intended purely for branches (see "Chipping").

Turbine. Turbine systems use a cutting element in the form of a cylindrical or conical drum with blades located horizontally. Their design is such that the shredder is able to cope equally effectively with both leaves and thick branches (see "Chipping"). The main disadvantage of "turbines" is the high cost.

— Leskovaya. As the name implies, systems of t...his type use a fishing line that rotates at high speed during operation. They are designed to work exclusively with leaves (see "Crushing"), and it is the leaves that the scaffold unit processes in the best quality. But with other types of garbage — even with thick grassy stems — such shredders can have problems.

Max. shredded material diameter

The largest thickness of debris that the shredder can handle normally. This parameter will allow you to evaluate how a particular device is suitable for a particular situation.

Note that the maximum diameter of the crushed material is important for models that allow working with branches (see "Chipping"). But in specialized aggregates for leaves, it is usually not indicated at all: the thickness of the garbage processed in such grinders is, by definition, small, and creating a design that works normally with any “soft” materials is usually not a problem.

Shredder speed

The speed of rotation of the cutting tool of the chopper (see "Crushing system"). Variable speed models (see below) usually have a maximum RPM value.

In general, the general pattern is as follows: with equal engine power, the higher the speed, the lower the torque (see below), and vice versa. In addition, high speed improves performance (see "Bandwidth"). At the same time, this parameter in most cases is more of a reference value than a practically significant one: manufacturers select the rotation speed in such a way that it provides the claimed throughput and at the same time maintains the torque at a sufficient level for efficient processing of materials that were originally calculated design. Therefore, in some models, revolutions may not be indicated at all, and when choosing, it is worth focus on moments that are closer to practice.

Motor power

The operating power of the chopper motor, expressed in watts. This designation is used for all electric models (see "Engine type"), but can also be used for gasoline / diesel.

The performance of the unit and its ability to cope with hard and thick branches primarily depend on the engine power. In general, the more powerful the grinder, the more advanced it is considered. However, it should be taken into account here that these moments are also highly dependent on other design features — the specifics of a particular motor, grinding system (see above), etc. Therefore, when choosing, it makes sense to pay attention first of all to the direct performance characteristics, such as the type of material being processed (see "Grinding"), its thickness (see "Maximum diameter of the material being ground"), etc. And the power itself can be useful for a general assessment of a particular model. So, shredders up to 1.5 kW inclusive belong mainly to the entry level, the middle class can carry an engine up to 2.5 kW, and higher rates are typical for professional units. Detailed recommendations on the optimal power for a particular situation can be found in special sources.

Noise level

The maximum noise level produced by the grinder during normal operation. The comfort of using the unit primarily depends on this indicator: strong noise can be very unpleasant, and at high volume it may even require the use of protective headphones.

Shredders are a rather “loud” type of modern technology, even in the quietest models the noise level is about 83 – 85 dB — this is comparable to the sound background on a busy city street. Note that the decibel is a non-linear quantity, so it is best to use comparison tables to estimate specific noise levels. Here are some guideline values:
  • 90 dB — freight car at a distance of 7 – 10 m;
  • 95 dB — subway car (inside), perforator;
  • 100 dB — symphony orchestra, demolition hammer;
  • 105 dB — home theater at maximum volume;
  • 110 dB — indoor rock concert.
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