MS 500¡ Petrol Chainsaw with 30" Bar: Powerful 5.0 kW chainsaw with electronically controlled fuel injection

The innovative MS 500i chainsaw from STIHL is the world’s first chainsaw with electronically controlled fuel injection. Its agile, performance-optimised engine accelerates very quickly. Thanks to its extremely successful lightweight design, this tool achieves an impressively low power-to-weight ratio of 1.24 kg/kW. This high-torque machine is a powerful solution for use in professionally harvesting large timber.

The MS 500i features a simple start-up sequence as well as very good starting behaviour under all usage conditions. Sensory fuel metering guarantees that the mixture is directly adapted to the oxygen content of the air. Like the MS 462, this saw can be very easily pivoted and – thanks to its new bumper spikes and sprocket cover – can be guided close to tree trunks.

Key Features

Side-mounted chain tensioning allows for protected, easy and quick chain tensioning and replacement. The tensioning screw is inserted laterally through the sprocket cover.

The electronic fuel injection control unit continuously calculates the correct fuel supply and the ideal ignition time, and injection is performed directly into the crankcase via the injection valve. Additionally, sensors measure air pressure and internal and external temperature, and pass information on to the control unit. This can use the identified values to determine the optimum fuel quantity and ignition timing. This means that your power tool offers more power from a similar weight and installation space compared to engines without injection.

During work, your chainsaw uses a pressure and temperature sensor on the engine to measure the fuel. The control unit processes the values measured by the sensor so that the system adapts to the operating conditions. The optimised measurement of the fuel also achieves the best possible running behaviour.

Thanks to electronic fuel injection, your chainsaw does not need a start position. In addition, the manual fuel pump is easily accessible, making the start-up process even easier.

With tool-free fuel cap, you can open and close oil and fuel tanks in just a few simple steps, thanks to a bayonet closure.

The STIHL Ematic system comprises a STIHL Ematic or Ematic S guide bar, a STIHL Oilomatic saw chain and a controlled-delivery oil pump. It ensures that the chain oil gets to where it is needed for lubrication. This allows you to reduce oil consumption by up to 50%. If you often work in dusty conditions or if you use long guide bars, you can quickly and easily increase the oil quantity at any time with the new oil pump system.

The nuts are attached to the sprocket cover in a captive manner. This makes it impossible for the nuts to fall off and get lost when the cover is removed.

The plunge guide makes it easier to check the cutting direction during plunge cutting. It is mounted on the fan housing and runs parallel to the symmetry line of the guide bar.

The rounded arrangement of the bumper spike teeth matches the radial contours of trees. This means that your chainsaw will bite even better into the wood when cutting to length and felling.

The optimised sprocket cover is narrower and flatter than the previous model. This improvement enables effortless delimbing and excellent chip removal. It has integrated slide rails and a guide edge, making it easier to guide the power tool along the trunk.

The decompression valve makes it easier to start your power tool. When starting, you can allow some of the compressed mixture to escape from the cylinder by opening the valve. This protects the start-up system and reduces the amount of force required on the starter cord.

With the STIHL 2-MIX engine, you can reduce exhaust emissions and fuel consumption, and therefore operating costs. This 2-stroke engine is low-maintenance and uses fuel efficiently even at high power levels. Use a mixture of petrol and engine oil as fuel. The STIHL 2-MIX engine complies with the strict EU Stage V emissions directive.

Vibrations can occur when you put your power tools through their paces, and these are particularly noticeable in the grip area. The buffer and spring elements of the STIHL anti-vibration system reduce the transmission of vibrations to the handle area and therefore to your body. The result is that your power tool is more comfortable to hold and your work is much less tiring.

 

Technical Features

Displacement	79.2 cm³
Power	5 kW
Engine power	6.80 HP
CO2	706 g/kWh
Device weight without refuelling	6.3 kg 1)
System weight without refuelling	7.88 kg 2)
Power-to-weight ratio	1.24 kg/kW
Bar length	30 in 3)
Groove width	1.60 mm
Groove width	63 in
Saw chain pitch	3/8"
Device length with bumper spike	468 mm 1)
Sound pressure level	106 dB(A) 4)
Sound power level	117 dB(A) 4)
Vibration level left	4.2 m/s² 5)
Vibration level right	4 m/s² 5)

1)without guide bar and saw chain2)with guide bar and saw chain3)The actual cutting length is shorter than the specified bar length4)K-value according to Directive 2006/42/EC = 2.0 dB(A)5)K-value according to RL 2006/42/EG = 2 m/s²