*The MS181 has been superseded by the MS182, please Click here to view
| Displacement: | 31.8 cc |
| Power output: | 2 hp |
| Weight: | 4.3 kg |
The STIHL MS181 Chainsaw 31.8cc is the perfect chainsaw for any home owner who carries out cutting jobs around the garden. The MS181 is perfect for cutting firewood, for building work and for felling small trees. The user will benefit from the machine's reduced vibrations. This chainsaw also features reduced-emission engine technology, which lowers fuel consumption as well as emissions; maintaining good cutting speed.
Additional features:
STIHL 2-MIX engine
The two-stroke engine with STIHL 2-MIX technology saves up to 20 % of fuel and reduces emissions by up to 70 % compared to STIHL 2-stroke engines of the same performance class without 2-MIX technology.
Side-mounted chain tensioning
Side-mounted chain tensioning makes it easy to tension the chain safely.
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.
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.
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.
STIHL anti-vibration system
Precisely calculated buffer zones minimise the transfer of engine and saw chain vibrations to the front and rear handles. The chainsaw therefore runs noticeably smoother. This allows the user to save their strength and work longer.
STIHL Ematic System
Compared to conventional bars without Ematic, the STIHL Ematic system reduces the consumption of chain lubricant by up to 50 %, depending on the type of wood and the cutting attachment used. This system comprises a STIHL Ematic or Ematic S guide bar, a STIHL Oilomatic saw chain and a variable-flow or reduced-flow oil pump. As a result, virtually every drop of chain lubricant is delivered to exactly the right spot.
Single-lever master control
All important functions such as start, choke, throttle and stop are operated via a single lever.
Tool free fuel caps
Special caps to open and close the tank cap quickly, easily and without tools.
Technical specifications:
| Displacement | 31,8 cm³ |
| Power output | 1,5/2 kW/bhp |
| Weight 1) | 4,3 kg |
| Power-to-weight ratio | 2,9 kg/kW |
| Sound pressure level 2) | 100 dB(A) |
| Sound power level 3) | 112 dB(A) |
| Vibration level left/right 4) | 3,5/3 m/s² |
| Saw chain pitch | 3/8"P |
| STIHL Oilomatic saw chain type | Picco Micro Mini 3 (PMM3) |
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