Cutting disc for Gardena Sileno Life and Sileno+
- cutting disc for Gardena Sileno Life – the 6-blade variant also for Sileno+
- Three versions to choose from: 6, 7 or 9 blades – from classic replacement to fine cutting
- Protection with every version – supports blade guidance, reduces grass blockages
- Blades pre-assembled, quick change in a few minutes – usually without tools
- Optional as a set with 60 replacement blades – stock up for the entire garden season
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Compatibility – GARDENA
Fits the following robotic mowers:
- ✓ Sileno Life
- ✓ Sileno+
A Sileno is hardly noticeable in the garden – and that is exactly its merit. It makes its rounds even when it’s drizzling, and you only hear it when something isn’t right. In most cases, it’s then the cutting system. Here you will find the right replacement mowing disc with 6, 7 or 9 blades – each version with blade guard and pre-assembled blades.
6, 7 or 9 blades – which cutting disc fits your Sileno
All three versions come with protective equipment and are supplied pre-installed. The difference lies in the number of cuts per revolution – and in the scope of delivery: The 6-blade disc is intended for Sileno Life and Sileno+, the 7- and 9-blade versions for the Sileno Life. Please check the model designation of your robotic lawnmower and the design of the existing disc before placing your order.
The classic one-to-one replacement – and the only variant that is also intended for the Sileno+. If your robot has been running quietly for years and you want to restore exactly this condition, this is the right choice.
For the Sileno Life. One more cut per revolution distributes the work across more edges – noticeably where the lawn grows strongly after rainy days and the area otherwise looks uneven.
Also for the Sileno Life. Nine edges meet every blade most often and leave the finest cut pattern – for lawn areas that you can’t even tell from up close that a machine has mowed them.
When the quiet classic suddenly becomes noticeable
You buy the Sileno for its unobtrusiveness: it goes around its rounds, it also works in light drizzle, and you hardly notice it in everyday life. That is exactly why a changed sound is the most honest warning signal that this robotic lawnmower knows.
A quiet knocking, a humming that wasn’t there before, a robot that works noticeably more stubbornly: Almost always, the cause is down at the cutting system. A disc that has taken a hit no longer runs smoothly and out of balance – the imbalance transfers as vibration to the entire mowing unit.
And then there’s the cut pattern on the lawn. Dull blades tear the blades of grass instead of separating them; the tips fray and turn brown. The area looks tired, even though the robot was younger and more frequently in use than ever before.
A fresh mowing disc restores both: the clean cut and the calm, quiet circular run you are used to from your Sileno. The disc is delivered fully equipped and fits in the existing mount without any tinkering.
A small service once a year instead of a surprise
The Sileno is one of the robotic lawnmowers that simply runs – and that’s why it’s easy to forget. If you spend ten minutes on it once a year, you practically never end up in the situation, in the middle of the season, of having a device that no longer mows cleanly.
The appointment is easy to remember: once at the start of the season, before the grass really gets going. Switch off the robot, carefully tilt it, remove the old disc, and fit the new one – you usually don’t need any tools for this, and since the blades are already mounted, the individual screwing on is also eliminated.
The protective frame is included with all three versions. It supports the blade guidance during operation and keeps the cutting area freer when moist cuttings want to collect around the disc. Especially with the Sileno, which also drives through dewy, early-morning grass, that matters.
And when the robotic lawnmower goes into winter sleep in autumn: remove the mowing disc, clean it, check for notches and deformation, and store it dry. Anyone who fits a fresh cutting disc in spring starts the new season without any rework.
Select the desired number of blades above – 6, 7, or 9; if you like, right away together with 60 replacement blades. Each version includes a guard and fully mounted blades, so your Sileno turns its rounds again just as quietly as you know it.
More Gardena models
Top reviews
Works right away with my GARDENA SILENO+; the cutting disc with 6 blades fits snugly, and the protective rim is great, so it doesn’t get stuck quickly in thicker or damp grass. I swapped it in a few minutes and since then my robot has been mowing nicely and evenly again.
I’ve now tested this cutting disc for a few weeks on my Gardena Sileno Life in my small city garden, and it runs smoothly and evenly. The 6 blades fit snugly, and the protective rim really helps prevent clogging, especially when the grass has just been wet. One downside: the replacement went fine, but I did have to look for which direction the slot should face before everything dropped in smoothly. Fleur
After comparing multiple options, I chose this cutting disc for my Gardena Sileno Life. After trying two other brands, this one fits really well: the 6 blades click into place neatly, and the protective edge helps with dense and wet grass, keeping the mowing quality more consistent. I can swap it in easily, and on the first wet cut I noticed fewer clogged spots than before.
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CUT GUARD Assembly Instructions
General assembly instructions for cutting discs, replacement blades, and blades for compatible robotic mowers.
Note
These instructions generally apply to compatible cutting discs, replacement blades, and blades from CUT GUARD.
They do not refer to a specific model or version. Always additionally refer to the operating manual of your robotic mower.
Important Safety Notice
Sharp blades. Risk of injury. The knives and blades can cause serious cuts.
Always wear appropriate protective gloves during assembly, disassembly, cleaning, and maintenance.
Never work on the cutting disc while it is still moving.
1. General Safety Instructions
- The operator is responsible for accidents, injuries, and damages caused to other persons or their property.
- Keep children, animals, and uninvolved persons away during work and operation of the robotic mower.
- Never touch the cutting disc or the knives while they are still moving.
- Always turn off the robotic mower completely before performing work on the cutting disc or the knives.
- Remove the battery if possible or disconnect the device from the power supply.
- Always wear appropriate protective gloves.
- Do not use damaged, bent, heavily worn, or corroded knives, screws, or cutting discs.
- Regularly check the condition of the knives, fastening screws, and the cutting disc.
2. Required Tools and Materials
- Suitable screwdriver or bit, matching the screws used.
- Protective gloves.
- New or tested fastening screws.
- CUT GUARD cutting disc, replacement blades, or blades.
- Optional: soft surface for safely placing the robotic mower.
Important
Only use suitable screws and appropriate mounting materials.
If specified by the manufacturer or included in the delivery, use screws with locking lacquer
or suitable screw locking.
3. Preparation
- Stop the robotic mower completely.
- Turn off the device according to the operating manual.
- Remove the battery if possible.
- Wait until the cutting disc has completely come to a stop.
- Carefully turn the robotic mower upside down and place it on a stable, soft surface.
- Check the work area for cleanliness and adequate lighting.
4. Disassembly of the Existing Cutting Disc
- Loosen the fastening screws of the existing cutting disc.
- Completely remove the screws and set them aside safely.
- Carefully remove the existing cutting disc from the knife holder.
- Clean the knife holder of grass clippings, dirt, and debris.
- Check the knife holder for damage or unusual wear.
Warning
Do not use the new cutting disc if the knife holder, fastening points,
threads, or screws are damaged. In this case, the robotic mower may only be reused after proper
inspection.
5. Installation of the CUT GUARD Cutting Disc
- Place the CUT GUARD cutting disc correctly on the knife holder.
- Ensure that the cutting disc lies flat and is correctly centered.
- Insert the appropriate fastening screws.
- Tighten the screws evenly and firmly.
- Do not overtighten the screws to avoid damage to threads or components.
- After installation, check that the cutting disc is securely attached.
- Gently turn the cutting disc by hand and check if it runs freely.
6. Installation or Replacement of Replacement Blades
- Loosen the screws of the old blades.
- Carefully remove the old blades.
- Clean the contact surfaces on the cutting disc.
- Place the new CUT GUARD replacement blades on the designated fastening points.
- Ensure that the blades remain freely movable, as intended by design.
- Secure each blade with a suitable screw.
- Tighten the screws securely without overtightening.
- Check each blade for a secure fit and free movement.
7. Post-Installation Check
- Are all screws fully inserted and securely fastened?
- Is the cutting disc lying flat and securely?
- Can the blades move freely, if intended?
- Are there no tools or foreign objects left in the area of the cutting disc?
- Does the cutting disc run freely and without grinding?
8. Operation and Maintenance
- Regularly check knives, screws, and cutting disc for wear.
- Immediately replace damaged or heavily worn parts.
- Regularly clean the cutting disc of grass clippings and dirt.
- Do not use the robotic mower if unusual noises, vibrations, or running problems occur.
- Only use compatible spare parts and suitable mounting materials.
Note on Blade Replacement
Always replace blades in a timely manner. Dull or damaged blades can worsen the cutting quality,
put more strain on the robotic mower, and compromise safety.
9. Disclaimer
CUT GUARD cutting discs, replacement blades, and blades are accessories and spare parts for compatible robotic mowers.
They are not original accessories from the respective device manufacturer unless explicitly stated
in the product description.
The assembly and use are at your own risk. No liability is accepted for damages caused by improper assembly,
incorrect use, damaged components, or failure to observe the operating manual of the robotic mower.
Warning in Case of Injury
Seek medical assistance immediately in case of injury or accident.
GPSR Information on Product Safety
Product safety information in accordance with Regulation (EU) 2023/988 on general product safety.
Manufacturer & Responsible Person (EU)
Patryk Napiorkowski - Trivando
Am bhf Weinhübel 8
02827 Görlitz
Germany
Email:
service@trivando.de
Website:
www.trivando.de
Product Identification
Brand: CUT GUARD
Product Type: Blade discs, replacement blades, and blades for compatible robotic mowers
Intended Use: Accessories and replacement parts for suitable robotic mowers
Product Type: Cutting and fastening components for use in robotic mowers
Item Number / Model / Variant: see respective product description, packaging, or invoice
Compatibility: see product description and operating instructions of the robotic mower
Important Warning
Sharp blades. Risk of injury. The knives and blades can cause serious cuts.
Assembly, disassembly, cleaning, and maintenance should only be performed when the robotic mower is completely turned off.
Always wear appropriate protective gloves and wait until the blade disc has come to a complete stop.
Intended Use
CUT GUARD blade discs, replacement blades, and blades are intended solely as accessories and replacement parts for compatible robotic mowers.
The products may only be used for their intended purpose and only in conjunction with suitable, compatible devices.
Any other use, structural modification, or improper assembly may lead to injuries, malfunctions, or property damage.
Not Suitable For
- Children.
- Persons who have not read or understood the operating instructions of the robotic mower.
- Incompatible robotic mowers.
- Devices with damaged blade mounts, damaged threads, or defective fastening points.
- Use outside the intended application area.
- Use as a tool, hand knife, or for other cutting tasks outside the robotic mower.
Safety and Warning Notices
- Use only for the intended purpose.
- Use only with compatible robotic mowers, suitable blade discs, and appropriate mounting materials.
- Always turn off the robotic mower completely before any assembly, disassembly, cleaning, or maintenance.
- If possible, remove the battery or disconnect the device from the power supply.
- Always wait until the blade disc has come to a complete stop.
- Always wear appropriate protective gloves.
- Keep hands and feet away from rotating blades.
- Never touch knives, blades, or blade discs during operation.
- Do not use damaged, bent, heavily worn, rusted, or corroded knives, screws, or blade discs.
- Regularly check knives, screws, and blade discs for secure fit, wear, and damage.
- Use only suitable screws and appropriate mounting materials.
- If provided, use screws with locking lacquer or suitable screw locking.
- Keep children, animals, and uninvolved persons away from the work area.
- The robotic mower must not be operated if persons, especially children, or animals are in the work area.
- In case of unusual noises, vibrations, grinding noises, or running problems, stop operation immediately and check the assembly.
- In case of injuries or accidents, seek medical assistance immediately.
Assembly Instructions
Assembly may only be performed when the device is turned off. Always observe the operating instructions of the respective robotic mower.
Blade discs, replacement blades, and blades must be correctly seated and securely fastened. After assembly, check whether the blade disc runs freely and that no tools or foreign objects have been left in the area of the knives.
Check Before Operation
- Are all screws fully inserted and tightened?
- Is the blade disc correctly centered and securely fastened?
- Are the knives correctly mounted?
- Can movable knives move freely, if this is structurally intended?
- Are there no visible damages?
- Does the blade disc run freely and without grinding?
Maintenance and Inspection
- Regularly check knives, blades, screws, and blade discs for wear and damage.
- Immediately replace damaged or heavily worn parts.
- Regularly clean the blade disc of grass residues, dirt, and deposits.
- Do not use aggressive cleaning agents that may damage material or coating.
- Use only compatible replacement parts and suitable mounting materials.
Storage and Disposal
Store replacement blades, blades, screws, and blade discs dry, clean, and secure.
Keep out of reach of children and unauthorized persons.
Safely package used, damaged, or dull knives and blades to avoid cuts.
Dispose of metal parts, packaging, and accessories in accordance with local regulations.
Note on Original Accessories
CUT GUARD products are compatible accessories and replacement parts. They are not original accessories of the respective
device manufacturer unless explicitly stated in the product description. Brand names, model designations,
and manufacturer information are for compatibility indication only.
Contact for Safety Questions, Complaints, or Accidents
For questions regarding product safety, complaints, accidents, or indications of possible safety issues, please contact us immediately:
Patryk Napiorkowski - Trivando
Am bhf Weinhübel 8
02827 Görlitz
Germany
Email: service@trivando.de
Website: www.trivando.de
Frequently asked questions
Does the disc fit both the Sileno Life and the Sileno+?
That depends on the variant. The 6-blade version is intended for compatible Sileno Life and Sileno+ models. The 7-blade and 9-blade versions are designed for compatible Sileno Life models. Since, for Gardena robotic lawnmower replacement parts, the mounting, fastening, and dimensions may differ depending on the model generation, please compare the model name of your device and the design of the existing disc before ordering.
My Sileno has suddenly become louder—could that be due to the cutting disc?
Very often, yes. A mowing disc that has taken a hit or is bent no longer runs smoothly and is properly balanced, and this imbalance is transferred as vibration and humming to the cutting system. Unevenly worn blades also cause instability in the rotation. Check the disc for notches and deformations—especially because a Sileno normally works so quietly, a changed sound is a reliable indicator.
When during the year should I best replace the cutting disc?
The easiest way is to schedule the replacement for the start of the season in spring, before the grass begins to grow properly. That way, you enter the growth phase with a fresh cutting system and avoid the cutting quality dropping off exactly when the robot has the most to do. A second good time to check is during winterization in autumn.
Do all three versions have a protective feature?
Yes. The 6-, 7- and 9-blade versions are each supplied with a guard. It supports controlled blade guidance during operation and helps reduce grass blockages on the mowing disc—which is particularly important for the Sileno, since these robotic lawnmowers are also used in damp grass and light drizzle.
Are the blades already mounted on the disc, or do I need to screw them on?
The blades are already fully mounted. You receive the mowing disc as a complete unit—6 blades for the 6-blade version, 7 for the 7-blade version, and 9 for the 9-blade version—and install it directly out of the packaging. There is no need to individually screw in the blades.
What tools do I need for the blade replacement on the Sileno?
Usually none. Switch off the robotic lawnmower, carefully tip it over, remove the old disc, fit the new one—this is done in just a few minutes and requires no technical prior knowledge. Since the blades are already mounted, the entire process consists of two hand movements.
How does the number of blades affect the cut pattern?
The more blades there are on the disc, the more often each blade of grass is hit per revolution, and the finer the cut pattern becomes. The 6-blade version is the classic replacement and restores the familiar condition, the 7-blade version distributes the work across one additional edge, and the 9-blade version delivers the finest cut. So it’s not the same cutting quality at three different prices, but a tiered improvement.
Is this an original Gardena replacement part?
No, it is a compatible mowing disc from CUT GUARD. It is manufactured to fit precisely into the mounting of the specified Sileno models and is designed for continuous operation in the robotic mower—an alternative to the original part with protection and pre-assembled blades. Please check the model designation and the design of the existing disc before purchasing.