Packed with new technology—at a value price—the STIHL MS 181 chainsaw is designed to reduce vibrations, making it more comfortable to operate. This chainsaw also features reduced-emission engine technology, which lowers fuel consumption as well as emissions; maintaining good cutting speed. Perfect for cutting firewood, for building work and for felling small trees.
This chainsaw is part of the 2020 STIHL Chainsaw Promotion – get free accessories worth up to £110.50 with every purchase!
Instruction is necessary to recognize or assess the dangers of a chainsaw. Please wear protective clothing and equipment.
If anything is unclear, we recommend to order the chainsaw via Click & Collect and pickup up the chainsaw from a STIHL servicing dealer.
You can find videos showing you how to fill your machine with fuel and oil, fit bars and chains and start your chainsaw here.
|Power output kW/bhp||1.5/2|
|Weight kg 1)||4.3|
|System weight kg 2)||4.98 / 5.08|
|Power-to-weight ratio kg/kW||2.9|
|Sound pressure level dB(A) 3)||100|
|Sound power level dB(A) 3)||112|
|Vibration values left/right m/s² 4)||3.5/3|
|STIHL Oilomatic saw chain pitch/type||3/8″ P PM3|
|Oil pump||Not adjustable|
|Tank volume l||0.27|
|Chain tensioning||Side chain tension|
|Sprocket – number of teeth||6|
|Filter||Long-term filter system / standard filter|
|Bumper spike||Steel claw|
|Cylinder||4 channel / chrome|
|Oil tank volume cm3||265|
|Anti vibration system||AV System, steel spring|
|EPA Certified fuel consumption l/h||0.75|
|Speed at maximum power Um||10.000|
|EPA Certified fuel consumption glh||0.198|
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.
1-in-4 channel technology. The economical STIHL 2-MIX engine with 1-in-4channel technology features a high torque over a wide speed range. The chainsaw provides fuel savings of up to 20% compared to STIHL two-stroke engines in the same performance class without 2-MIX technology. Exhaust emissions are reduced by up to 50%.
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.
Single-lever master control
All important functions such as start, choke, throttle and stop are operated via a single lever.
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%.
Tool free filler caps
Special catches on the fuel and oil tanks for easy opening and locking without the need for tools.