The STIHL FSA 120 is a high-performance battery-powered brushcutter designed for professional users tackling demanding mowing, trimming, and clearing tasks. Built as part of the STIHL AP System, it combines powerful cutting performance with low noise operation, making it ideal for use in noise-sensitive environments such as schools, hospitals, residential areas, and public spaces.
This model is supplied as tool only, without battery or charger, making it an ideal choice for users already invested in the STIHL AP battery platform.
Powered by a highly efficient brushless EC motor, the FSA 120 delivers strong cutting performance with minimal maintenance requirements and a long service life. STIHL’s intelligent electronics provide Constant Power, ensuring the tool maintains full performance throughout the battery charge instead of gradually losing power as the battery depletes.
The FSA 120 features an ergonomic bike handle, designed for comfortable sweeping motions when cutting large areas of tall grass or weeds. The handle position can be adjusted quickly without tools using the central clamping system, and rotated 90° for easier transport and compact storage.
The control handle includes two power settings:
- Level 1 (Eco mode) for lighter trimming work and extended battery runtime.
- Level 2 (Full power mode) for thicker vegetation and tougher cutting conditions.
The machine also intelligently detects the cutting attachment being used and automatically adjusts operating speed for optimum performance. Supplied with a GrassCut 230-2 metal blade and double shoulder harness.
The FSA 120 is also compatible with additional STIHL cutting attachments including:
- TrimCut
- DuroCut
- PolyCut
- AutoCut
Designed for professional daily use, the FSA 120 features IPX4 splashwater protection, meaning it can be used reliably even in wet weather conditions.
It is also compatible with STIHL connected via the optional Smart Connector, allowing operating hours and maintenance schedules to be tracked through the STIHL connected app.
FSA 120R Cordless Brushcutter
Product Details
- Powerful cordless brushcutter for professional users
- Individual tool without battery or charger
- Variable speed control in two levels
- For use in noise-sensitive areas
- Can be used with a range of cutting tools
- IPX4 rated for working in all weather
Technical Specifications
Rated voltage 36 V Max. voltage 40 V Power 0.80 kW 1) Battery system AP Recommended battery AP 300 S Device weight without battery 4.5 kg 2) Cutting circle diameter 380 mm Standard cutting attachment GrassCut 230-2 Max. battery working time AP 20 with plastic blade mowing head 30 min 3) Max. battery working time AP 30 with plastic blade mowing head 45 min 3) Max. battery working time AP 30 with metal blade 75 min 3) Min. battery working time AP 100 with metal blade 20 min 3) Max. battery working time AP 100 with metal blade 30 min 3) Min. battery working time AP 200 with metal blade 40 min 3) Max. battery working time AP 200 with metal blade 60 min 3) Min. battery working time AP 200 S with metal blade 40 min 3) Max. battery working time AP 200 S with metal blade 60 min 3) Min. battery working time AP 300 with metal blade 50 min 3) Max. battery working time AP 300 with metal blade 80 min 3) Min. battery working time AP 300 S with metal blade 60 min 3) Max. battery working time AP 300 S with metal blade 110 min 3) Min. battery working time AP 500 S with metal blade 70 min 3) Max. battery working time AP 500 S with metal blade 130 min 3) Min. battery working time AR 2000 L with metal blade 210 min 3) Max. battery working time AR 2000 L with metal blade 400 min 3) Min. battery working time AR 3000 L with metal blade 280 min 3) Max. battery working time AR 3000 L with metal blade 490 min 3) Device length without cutting tool 178 cm Sound pressure level 81 dB(A) 4) Sound power level 94 dB(A) 4) Vibration value on the left in right-handed operation 1.8 m/s² 5) Vibration value on the left in right-handed operation 2.6 m/s² 5) Vibration value on the right in right-handed operation 2.3 m/s² 5) Vibration value on the right in right-handed operation 1.3 m/s² 5)
1)Mechanical power as comparative value to petrol appliance2)without cutting tool and protection
3)The indicated working times per battery charge are indicative and may vary depending on the application and operating mode
4)K-value according to Directive 2006/42/EC = 2.0 dB(A)
5)K-value according to RL 2006/42/EG = 2 m/s²
















