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Comparison Vitals BKZ 2510s vs Grunhelm GS 2500

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Vitals BKZ 2510s
Grunhelm GS 2500
Vitals BKZ 2510sGrunhelm GS 2500
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Product typechainsawchainsaw
Typeportableportable
Power sourcepetrol enginepetrol engine
Motor
Engine size25.4 cm³25.4 cm³
Power800 W2000 W
Power1.1 hp2.72 hp
Idle speed3000 rpm3000 rpm
No load speed11500 rpm8500 rpm
Cutting equipment
Bar/blade size300 mm300 mm
Chain pitch3/8 "3/8 "
Chain speed19 m/s
Features
Features
chain brake /0.15 с/
anti-vibration system
chain brake
anti-vibration system
General
Top handle
Noise level115 dB115 dB
Fuel tank volume0.23 L0.23 L
Oil tank volume0.16 L0.16 L
Weight4 kg4 kg
Added to E-Catalogjuly 2023may 2019

Power

Saw motor power in watts. For petrol tools (see "Power Source"), horsepower is additionally indicated, see below for details.

The higher the power, the better the tool is suitable for voluminous work and hard materials, the greater the depth of cut it can provide and the easier it can cope with significant loads. In addition, for different types of saws and different types of materials, the actual power values \u200b\u200bcan also be different. For example, a power of 2.5 – 3 kW is actually the limit for chain saws, but in chain saws this is an average figure, among such tools there are models of 3 – 4 kW and even more. Detailed selection recommendations for various cases can be found in special sources.

Power

The power of the saw engine expressed in horsepower (hp). This designation is traditionally used in gasoline models (see "Power Source") along with watts; 1 HP ≈ 735 W.

For more information about power, see the paragraph of the same name above.

No load speed

The highest speed that the saw engine is capable of delivering in normal operation.

We emphasize that this parameter should not be confused with the maximum disk speed (see below) — here we are talking exclusively about the speed of rotation of the motor shaft. It can be specified for all types of saws, not only for models using discs. However, in general, engine speed is more of a reference than really significant information. In fact, it is needed mainly for some specific tool maintenance tasks; when choosing, it is better to focus on indicators that are more “close to life” — engine power, cutting depth, chain / tape speed or disk speed, etc.

Chain speed

The maximum speed of the chain relative to the material that a saw of the appropriate design can provide (see "Device"). Higher speed allows to achieve faster and cleaner cuts, but requires more engine power; low speed, in turn, reduces productivity, but allows you to achieve good traction with a relatively low engine power. More detailed recommendations regarding this parameter can be found in special sources.
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