Technical specifications for brushcutters and trimmers. Cylinder displacement, cc Cylinder bore, mm Cylinder stroke, mm Power output, kW / hp
555RXT
545RXT
53.3
45.7
45
42
33.5
33
2.8 / 3.8
2.1 / 2.8
Sound pressure level at operators ear, dB(A) *
101
100
Guaranteed sound power level, L WA dB(A)
120
115
1.5 / 1.6
2.1 / 2.4
Equivalent vibration level (a hv , eq ) left / right handle, m / s²* * Maximum power speed, rpm
9000
9000
Maximum recommended engine speed, rpm
12000
12500
Walbro WT
Walbro
Carburettor Fuel tank volume, litres
1.1
0.9
Fuel consumption (g / KWh)
480
450
Ignition system
Walbro MB
SEM CD
Idling speed, rpm
2800
2800
Exhaust emissions (CO average), g / kWh
350
380
Exhaust emissions (HC average), g / kWh
61
47
Exhaust emissions (NOx average), g / kWh
2.4
1
1:1.46
1:1.4
Gear ratio Drive gear angle OEM Trimmer head OEM Grass blade OEM Harness Weight (excl. cutting equipment), kg Tube length, mm Tube diameter, mm
35 °
35 °
T55X M12
T45X M12
Multi 350-3
Multi 300-3
Balance XT™
Balance XT™
9.2
8.2
1483
1483
35
32
* Equivalent sound pressure level, as per ISO 22868, is calculated as the time-weighted energy sum for the sound pressure levels at various operational states. Typical variation for equivalent sound pressure level is a standard deviation of 1 dB(A). ** Equivalent vibration level, as per ISO 22867, is calculated as the time-weighted energy sum for the vibration levels at various operational states. The data presented for equivalent vibration level has a typical variation (standard deviation) of 1 m / s². level has a typical variation (standard deviation) of 1 m / s².
NOMINAL POWER A new machinery directive (2006 / 42 / EC) came into force on January 1, 2010, requiring manufacturers to declare the nominal power of engines, in kilowatts (kW). The power rating of the engines indicated is the average net power output during a normal working situations and fulfilling applicable noise regulations (at specified rpm) of a typical production engine for the engine model measured to SAE standard J 1349 / ISO 1585. Mass production engines may differ from this value. Actual power output for the engine installed in the final machine will depend on the operating speed, environmental conditions and other variables.
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