STIHL’s most advanced pro chainsaw ever! The MS 441 C-M features STIHL M-Tronic, a fully electronic controlled ignition timing and fuel metering system. This modern, low vibration and high-performance saw is simple to start and operate by automatically adjusting to the conditions you are working in. The M-Tronic system even remembers your settings from the last time you used the tool for quick and easy use. Optimised power to weight ratio. Very low vibration levels. Up to 20% less fuel consumption and 50% fewer emissions compared to conventional two-stroke engines without 2-MIX technology
STIHL MS 441 C-M Chainsaw
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.
As M-Tronic has electronic cold and warm start recognition, only one start position is needed on the combi lever. The exact amount of fuel is supplied on demand. You do not need to know about the status of your chainsaw and can apply full throttle straight away – even with a cold start. Because the saw is warmed up by optimum acceleration in a few seconds.
STIHL M-Tronic (M)
This fully electronic engine management system adjusts ignition timing and fuel metering in all operating modes. It also takes external conditions such as temperature, altitude and fuel quality into account. It ensures consistent engine performance, a constant maximum speed and superb acceleration. M-Tronic makes manual carburettor adjustments unnecessary. Thanks to electronic cold/warm start recognition, now there is only one start position on the combi-lever. The engine starts after fewer pulls and with no change of position, and can immediately accelerate up to speed – even after a cold start. M-Tronic also remembers the settings from the last time the tool was used. So when external conditions are the same, optimal engine performance is available every time you start up again.
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.
The HD2 filter is made from polyethylene filter material with up to 70% finer pores than fleece and polyamide filters to trap even very fine dust. In addition, it is oil and water-repellent and thus very easy to clean. The PET-covered filter cartridge with quick-release lock enables the filter to be assembled and disassembled in next to no time, without using tools.
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
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.
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
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.
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
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%.
STIHL ElastoStart reduces the shock caused by the compression of the engine during starting. The compression shock is taken away from the user’s joints and muscles through a spring or rubber element in the starter handle.
Tool free filler caps
Special catches on the fuel and oil tanks for easy opening and locking without the need for tools
|Bar Length (inches)|
18, 20, 25
|Power output kW/bhp||4.2/5.7|
|System weight kg||7.93 / 8.08 / 8.41|
|Power-to-weight ratio kg/kW||1.6|
|Sound pressure level dB(A)||105|
|Sound power level dB(A)||118|
|Vibration values left/right m/s²||3.1/3.3|
|STIHL Oilomatic saw chain pitch/type||3/8″ RS|
|Oil pump||Adjustable oil filter|
|Tank volume l||0.72|
|Chain tensioning||Lateral chain tension|
|Sprocket – number of teeth||7.7 Z|
|Filter||Long-term filter system (pre-separation) / cartridge filter HD2|
|Bumper spike||Steel claw|
|Oil tank volume cm³||360|
|Filler cap||Tool-free filler cap|
|Starting system||ElastoStart / Recoilless Ignition / single-lever control / decompression valve|
|EPA Certified fuel consumption l/h||2.25|