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MS 391 Petrol chainsaw

€986.29 €747.84

Stihl MS 391 Petrol chainsaw

Stihl MS 391 Petrol chainsaw is Easy-to-manage, high-torque chainsaw for improved performance and user comfort when harvesting wood or sawing firewood. High torque over a wide range of speeds. Up to 20% less fuel consumption and up to 50% lower emissions compared with the previous model without 2-MIX technology.

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Stihl MS 391 Petrol chainsaw

The STIHL MS 391 is the ultimate farm saw. Extremely high torque makes this chainsaw more than able for any task on the farm. You wont be left wanting power with this chainsaw.

An easy saw to control and operate, with features such as the Decompression button which makes it very easy to pull the pull cord which would normally be difficult on a chainsaw of this size. Other features like a single control lever for choke and the on/off switch and the STIHL anti-vibration system make this saw a market leader.

The STIHL 2-MIX engine reduces fuel consumption by 20% and emissions by 50% on previous models. Another important feature is the new air filter system which drastically reduces the intake of sawdust for cooling the engine and means maintenance needed is also reduced.

STIHL engine technology means low fuel consumption, longer run times and reduced emissions in this high-powered chainsaw. The MS 391 features our newest engine technology that adds fuel efficiency while reducing emissions as compared to other models. Though equal in weight, the MS 391 is more powerful than the MS 311. Add to that an optimal power-to-weight ratio and you have a chainsaw that’s cut out for the big jobs in field, farm and ranch. Felling trees, cutting firewood and cleanup after the storm just got a whole lot easier with the rugged MS 391.

Stihl MS 391 Petrol chainsaw

Technical data

Displacement cm³ 64.1
Power output kW/bhp 3.3/4.5
Power-to-weight ratio kg/kW 1.9
Weight kg 1) 6.2
Sound pressure level dB(A) 2) 105
Sound power level dB(A) 2) 117
Vibration values left/right m/s² 3) 4/4
STIHL Oilomatic saw chain pitch/type 3/8″ RM
1) Without fuel, without bar and chain 2) K-factor according to DIR 2006/42/EC = 2.5 dB (A) 3) K-factor according to DIR 2006/42/EC = 2m / s ²

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.

Standard features

 

Decompression valve 

Decompression valve

The decompression valve is part of the easy starting system. The valve should be pressed before starting to reduce the compression pressure when starting, as well as reducing the effort needed to pull the starter rope. The decompression valve is semi-automatic; it must be pressed manually before starting, but then closes automatically.

Reduced-emission engine technology 

Reduced-emission engine technology

2-stroke engine with stratified charge. A fuel-free layer of air is created between the burned charge in the combustion chamber and the fresh charge in the crankcase, reducing the amount of fuel lost during the charge cycle. This results in more power with a lower weight, up to 20% lower fuel consumption than regular 2-stroke engines and significantly reduced exhaust emissions.

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Advanced combustion technology

Four overflow channels swirl the fuel-air mix before ignition, allowing for optimum combustion and highly efficient performance. The result is lower fuel consumption and high torque across a broad rpm range.

Anti-vibration system 

Anti-vibration system

Intense vibration at the handles of power tools can lead to long-term effects on blood vessels in the hands and arms. STIHL has therefore developed an effective anti-vibration system whereby the oscillations from the machine’s engine are dampened which significantly reduces vibrations at the handles.

Pre-separation air filtration system 

Pre-separation air filtration system

STIHL long-life air filtration systems with pre-separation achieve perceptibly longer filter life compared with conventional filter systems. Air drawn in is swirled. The larger, heavier particles are ejected. The pre-cleaned air is routed to the air filter via the pre-separator duct.

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Compensator

This controller in the carburettor prevents the fuel-air mixture getting richer as the air filter becomes clogged. The correct quantity of fuel is delivered to the carburettor depending on the quantity of air passing through the air filter. This keeps the fuel/air ratio in the combustion mixture constant and hence also the engine power. The filter doesn’t need to be cleaned until an appreciable drop in power occurs.

Variable-displacement oil pump 

Variable-displacement oil pump

Allows a precise, demand-based delivery of oil. It’s possible to reduce oil production by up to 50% in the E position. For very long cutting attachments or very dry wood, an additional volume of oil can be added by the user. similar to illustration.

Single-lever master control 

Single-lever master control

All important functions such as start, choke, throttle and stop are operated via a single lever.

Side chain tensioner 

Side chain tensioner

The tensioning screw can be found on the side of the chain saw through the sprocket cover. This removes the need for contact with the sharp saw chain.

Ematic chain lubrication system 

Ematic chain lubrication system

The Ematic chain lubrication system ensures pinpoint lubrication of the saw chain links and guide bar rails. When used with STIHL OILOMATIC saw chain, it will provide maximum lubrication, longer wear and less oil consumption than conventional methods of chain lubrication. The Ematic system can reduce bar oil consumption by up to 50%.

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Tool free filler caps

Special catches on the fuel and oil tanks for easy opening and locking without the need for tools.

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.


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