FS 311
Lightweight clearing saw for forestry and landscape maintenance
General
Lightweight, particularly powerful clearing saw for mowing work in matted grass and scrub. A simplified start-up sequence for convenient starting, bike handle, control handle with stop button, 4-MIX® engine, maintenance- free transmission, rigid drive shaft, with ADVANCE PLUS universalharness.
Versions
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FS 311
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Technical specifications

Technical specifications
Technical specifications | Value |
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Displacement | 36,3 cm³ |
Power output | 1,4/1,9 kW/bhp |
Weight 1) | 7,2 kg |
Sound pressure level with plastic tool 2) | 99 dB(A) |
Sound pressure level with metal tool 2) | 98 dB(A) |
Sound power level with metal tool 2) | 110 dB(A) |
Sound power level 2) | 110 dB(A) |
Vibration level, left/right with plastic tool 3) | 2,2/2,8 m/s² |
Vibration level, left/right with metal tool 3) | 2,9/2,9 m/s² |
Total length 4) | 180 cm |
Cutting tool | Brush knife 300-3 |
1) Weight excluding fuel, cutting tool and guard
2) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
3) K-factor according to DIR 2006/42/EC = 2m / s ²
4) Without cutting tool
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Features

Standard equipment
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Cutting Tools

Cutting Tools
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Versions
- Grass cutting blade 250-40 Special
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AutoCut mowing head 46-2
Two lines, for mowing and clearing work. Mowing lines are automatically extended by tapping the mowing head on the ground.
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DuroCut mowing head 40-4
Quadruple lines, for mowing and thinning work. Up to four lines can be easily inserted. Compatible with many different sizes and types of mowing line.
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GrassCut Grass cutting blade 250-44
Low-throw, steel grass-cutting blade with 44 teeth (diameter: 250 mm). Clippings are not scattered, and the risk of stones flying up as debris is low. Ideal for mowing tough, dry grass and stubborn weeds. Suitable for reeds and bushes. Use only with the universal guard.
Versions
- Grass cutting blade 250-44
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GrassCut Grass cutting blade 250-44
Low-throw, steel grass-cutting blade with 44 teeth (diameter: 250 mm). Clippings are not scattered, and the risk of stones flying up as debris is low. Ideal for mowing tough, dry grass and stubborn weeds. Suitable for reeds and bushes. Use only with the universal guard.
Versions
- Grass cutting blade 250-44
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ShredCut Shredder blade
Steel double blade for thinning and removing tough scrub and thorny hedges. Must be used with the appropriate shredder guard. Only approved for certain bike handle machines.
Versions
- Shredder blade 270-2
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DuroCut mowing head 40-4
Quadruple lines, for mowing and thinning work. Up to four lines can be easily inserted. Compatible with many different sizes and types of mowing line.
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GrassCut 250-32, low spin
Flying stones and gravel often create problems when mowing with clearing saws on traffic islands or in public parks and green spaces. STIHL has the answer: the low-spin 250-32 grass-cutting blade with KWF certificate reduces the safety distance from objects and vehicles to three metres. Thanks to the special tooth shape, the risk of particles flying around is reduced to a minimum. The result is greater safety, maximum working comfort and quicker results. Article 4001 713 3813 for FS 80 , FS 85 , FS 89 , FS 91 , FS 111 , FS 131 , FSA 130, FSA 135, FSA 130 R, FSA 135 R, FS 94 RC-E , FS 94 C-E , FSA 90 R, FSA 90, FS 240 C-E, FR 131 T, FR 480 , FR 480 C-F, FR 410 C-E , FR 460 TC-EM. Article 4001 713 3812 for FS 260 C-E, FS 311, FS 360 C-EM , FS 410 C-EM ,FS 410 C-EM L, FS 410 C-EM K , FS 460 C-EM K , FS 490 C-EM K , FS 490 C-EM K, FS 460 C-EM , FS 460 C-EM L , FS 490 C-EM , FS 490 C-EM L, FS 510 C-EM, FS 560 C-EM.
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Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Accessories

Accessories
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STIHL Smart Connector
The Smart Connector can be attached to petrol-driven, electric, and cordless products, enabling it to deliver important information about your STIHL power tool via Bluetooth® 4.2. The Smart Connector offers entirely new functions and services, as a basis for device management both in your home garden using the STIHL connected app, and for managing your machine fleet using the STIHL connected Portal.
Technical specifications Value Weight 20 g Dimensions (l x b x h) 53 x 42 x 14 mm Signal range ca. 10 m Running time per battery charge ca. 1 Year Connectivity BLE 4,2 Battery 3V CR 2.032 -
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ADVANCE X-TREEm forestry harness
Offering outstanding ergonomic design, specially developed for long periods of forestry work using circular saws. Highly comfortable to wear due to the length-adjustable back section and infinitely variable load distribution between the shoulders and hips, for FS 89 – FS 560, and FSA 90.
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Versions
- Hip pad
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ADVANCE universal harness, fluorescent orange
High visibility. Perfectly complements protective clothing when mowing in hazardous areas, with a comfort carry ring for quickly attaching and removing the clearing saw, for FS 50 – FS 560 and FSA 90.
Versions
- ADVANCE universal harness, fluorescent orange
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Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Documents
Owners manuals and safety brochures
Languages | Date | Link |
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21.07.2022 |