Stihl MS 291 (16" OR 18")
Durable 2.8kW petrol chainsaw is a practical all-rounder for farmers, landscapers and gardeners.
Durable 2.8kW petrol chainsaw is a practical all-rounder for farmers, landscapers and gardeners. With the economical 2-MIX engine, fuel consumption is reduced by up to 20% and emissions are cut by up to 50%. Featuring STIHL's long-life air filter system with pre-separation and professional anti-vibration technology, the MS 291 sets a new standard for this type of saw.
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.
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.
Technical data Value Displacement cm³ 55.5 Power output kW/bhp 2.8/3.8 Weight kg 1) 5.6 System weight kg 2) 6.64 / 6.87 Power-to-weight ratio kg/kW 2 Sound pressure level dB(A) 3) 103 Sound power level dB(A) 3) 116 Vibration values left/right m/s² 4) 4.5/4.5 STIHL Oilomatic saw chain pitch/type .325" RM Oil pump Not adjustable Tank volume l 0.50 Chain pitch .325" Chain tensioning Lateral chain tension Sprocket - number of teeth 7 Z Filter Long-term filter system (pre-separation) / cartridge filter Bumper spike Steel claw Cylinder Chrome Oil tank volume cm3 240 Sprocket Profile chain row Anti vibration system AV + steel spring Filler cap WTV tool-free tank cap EPA Certified fuel consumption l/h 1.458 CO2 g/kWh 939 Handle type Standard grip Speed at maximum power Um 9.500 EPA Certified fuel consumption glh 0.385