Blade Disc eufy C15 with 5, 6 or 7 Blades

Description

Replacement mowing disc for the eufy C15

The C15 is eufy’s entry-level model—compactly built, with a correspondingly limited battery. That’s why we carry it as the only device in our range also with five blades: less cutting means less resistance in the grass and therefore more area per battery charge. In addition, the disc is also available in the classic version with six or seven blades.

Mowing disc for eufy C15 in the lawn — The only model that also works with five blades

Why five blades make sense for the C15

Every blade that cuts through grass uses energy. With large robots with a powerful battery, this hardly matters—on the C15 it does, because every minute of runtime counts here.

Five cutting edges instead of six noticeably reduce resistance. As a result, the robot can cover more square meters before it has to return to the charging station, and it needs fewer passes to cover the same area.

The trade-off is a slightly coarser cutting pattern. On everyday lawn grass, for which the C15 is designed, this isn’t noticeable in daily use—on short ornamental lawns, however, it is.

Compatible Model

eufy C15

Not compatible with: eufy E15 and E18. Despite the similar naming, the E models have a different mowing deck—so we offer a separate disc for E15 and E18.

C15 or E15?

This question is asked more often for eufy than any other—and it determines which disc must end up in your shopping cart.

The difference between C15 and E15 at a glance

	eufy C15	eufy E15 / E18
Position	entry-level model	next higher series
Number of blades	5, 6 or 7 selectable	6, 7 or 9 selectable
Mowing disc	this disc	other disc
Special feature	5-blade option saves battery	larger coverage area

The number 15 appears in both names—the decisive factor is the letter before it. It is shown on the type label on the underside and in the eufy app.

Does having one fewer blade really mean more runtime?

The effect is measurable, but not surprising. Five instead of six blades reduce resistance in the grass by about one-sixth—so the drive motor works correspondingly easier.

In practice, that means: a bit more area per charge, and a slightly shorter total mowing time. If you run your C15 at the upper limit of its recommended area, you’ll notice it most clearly.

If, on the other hand, you have a small garden and the robot is finished before the battery runs out anyway, you won’t gain anything—then six or seven blades are the better choice for the cutting result.

Can I switch between blade counts later?

Yes, the mowing discs are interchangeable with each other. If you start with five blades and find that the cutting result isn’t fine enough, you can switch to six or seven at any time.

It works the same the other way around: if the lawn dries out in midsummer and the robot has a hard time, the 5-blade setup provides additional reserve.

What doesn’t work: moving individual Klinge(n) from one disc to the other to land in between. The discs are each manufactured as a matched set.

Replacement on the C15

Switch the device off and remove it from the charging station.
Put on gloves, turn the robot over, and place it down.
Remove clippings from the mowing area—on the compact C15, they often sit close to the edge of the intake.
Unscrew the old mowing disc, attach the new one, and tighten evenly.
Tap the blades individually: each one must be able to rotate freely around its screw.

On the C15, it’s worth combining the replacement with a quick look at the wheels. Small devices collect surprisingly much material in the wheel wells, which additionally costs power for the drive.

Underside of an eufy C15 with mowing disc — A look at the nameplate clarifies the model series

Technical data

Blade count	5, 6 or 7 blades (selectable)
Blade material	Stainless steel
Blade mounting	Freely rotating on the screw – folds away when encountering obstacles
Mowing disc material	Impact-resistant plastic composite
Compatible with	eufy C15
Not compatible	eufy E15, eufy E18
Package contents	1 mowing disc with factory-mounted blades
Installation	Direct replacement of the original cutting disc
Shipping	Ships directly from the manufacturer, dispatch within 24 h

5, 6 or 7 blades

The C15 is the only model for which we offer all three stages. Your choice determines between runtime and fineness—both at the same time isn’t possible.

5 blades – for maximum runtime

The version available only for the C15. Less cutting means less resistance: the robot goes further before it has to return to the station.

Suitable for everyone whose garden makes full use of the C15’s area recommendation or whose lawn grows vigorously. Even if the battery has lost some performance after a few seasons, this blade setup restores range.

Without middle cover—this is available exclusively with the 6-blade version.

Choose 5-blade version

Extra charge see selection above

Mowing disc with 5 blades for eufy C15 — 5 blades – protects the battery

Mowing disc with 6 blades for eufy C15 — 6 blades – as from the factory, with cover

6 blades – factory configuration with cover

Matches the original cutting disc. The C15 behaves exactly as before, the cutting pattern remains unchanged—the safe choice when nothing should be changed other than the condition of the blades.

This version is the only one that has a cover over the center of the blade plate. For the C15, this is a practical advantage because the small clearance to the ground carries clippings inward—without a cover, they collect around the blade holder and additionally slows down the already modest drive.

If you want the robot to simply run, this is the most straightforward option.

Choose 6-blade variant

Base price

7 blades – when the result matters

The densest blade setup for the C15. Seven cutting edges capture every blade of grass more often, making the cut pattern visibly more even – the right choice for lawns kept short right by the seating area.

However, there’s a trade-off: More blades mean more resistance and therefore a slightly shorter runtime per battery charge. In small gardens, that doesn’t matter; at the edge of the area, it does.

Also without center coverage.

Choose 7-blade variant

Additional cost, see selection above

Mowing disc with 7 blades for eufy C15 in use — 7 blades – finest cutting pattern

Time for new blades?

✓The C15 returns to the charging station earlier than usual

✓Blade tips look crushed instead of cut

✓The lawn gets a dull tone after mowing

✓A blade no longer moves freely

Buy blades individually as replacements

Dull cutting edges cost you twice with the C15: a poorer cutting result and more power required for the small battery. With the 60-blade replacement set including screws, you can swap them in time instead of driving through a season with half performance.

To the blade set

Frequently asked questions

Why does the eufy C15 have a variant with 5 blades?

Because each blade costs energy and the C15 operates with a slightly undersized battery. Five blades draw less than seven and noticeably extend runtime per charge.

Does the C15 mowing disc also fit the E15 or E18?

No. The E series has a larger mowing deck with a different mounting. The discs are not interchangeable with each other.

Is there a 9-blade disc for the C15?

No. For this mowing deck, 5, 6, and 7 blades are intended. Nine blades would not be sensible for the disc size and battery configuration.

How many blades should I choose for the C15?

If battery runtime is tight, choose 5. If the lawn is small enough that the battery was never an issue, 6 or 7 will provide a finer cutting pattern.

My C15 no longer covers the area in one pass—what could be the reason?

Often it’s due to dull blades. They increase resistance, the motor draws more power, and the battery lasts for a shorter time. A fresh disc often restores the old runtime.

How long does a mowing disc last on the C15?

With average use, about one season to one and a half. A very low set cutting height shortens service life because the blades pick up more soil.

Are the blades pre-assembled?

Yes. The disc comes ready to install—you don’t have to screw the blades on individually.

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GRASBOT Assembly Instructions

General assembly instructions for cutting discs, replacement blades, and blades for compatible robotic lawnmowers.

Note

These instructions apply generally to compatible cutting discs, replacement blades, and blades from GRASBOT.
They do not refer to a specific model or specific version. Always additionally follow
the operating instructions of your robotic lawnmower.

Important safety notice

Sharp blades. Risk of injury. The blades and blades can cause severe cuts.
Always wear suitable 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 damage that occur to other people or their property.
Keep children, animals, and bystanders away from the robotic lawnmower during work and during operation.
Never touch the cutting disc or the blades while they are still moving.
Always switch the robotic lawnmower completely off before working on the cutting disc or on the blades.
If possible, remove the battery or disconnect the device from the power supply.
Always wear suitable protective gloves.
Do not use damaged, bent, heavily worn, or corroded blades, screws, or cutting discs.
Regularly check the condition of the blades, the mounting screws, and the cutting disc.

2. Tools and materials required

Suitable screwdriver or bit, matching the screws used.
Protective gloves.
New or inspected fastening screws.
GRASBOT cutting disc, replacement blades, or blade(s).
Optional: soft surface for safely placing the mowing robot.

Important

Use only suitable screws and appropriate mounting material.
If provided for by the manufacturer or included in the delivery, use screws with thread-locking compound
or suitable screw locking.

3. Preparation

Fully stop the mowing robot.
Switch off the device according to the operating instructions.
Remove the battery if possible.
Wait until the cutting disc has come to a complete stop.
Carefully turn the mowing robot over and place it on a stable, soft surface.
Check the work area for cleanliness and adequate lighting.

4. Dismantling the existing cutting disc

Loosen the mounting screws of the existing cutting disc.
Remove the screws completely and set them safely aside.
Carefully remove the existing cutting disc from the blade mount.
Clean the blade mount of grass clippings, dirt, and deposits.
Check the blade mount for damage or unusual wear.

Warning

Do not use the new cutting disc if the blade mount, mounting points,
threads, or screws are damaged. In this case, the lawn mower may only be used again after
proper inspection.

5. Installing the GRASBOT cutting disc

Fit the GRASBOT cutting disc onto the blade mount.
Make sure the cutting disc sits 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 fastened.
Carefully rotate the cutting disc by hand and check that it runs freely.

6. Installation or replacement of the replacement blades

Loosen the screws of the old blades.
Carefully remove the old blades.
Clean the contact surfaces on the cutting disc.
Install the new GRASBOT replacement blades on the designated mounting points.
Make sure the blades remain free to move, if this is intended by the design.
Fasten each blade with a suitable screw.
Tighten the screws securely without over-tightening them.
Check each blade for a secure fit and free movement.

7. Check after installation

Are all screws fully inserted and securely fastened?
Is the cutting disc straight and firmly seated?
Can the blades move freely, if intended?
Have no tools or foreign objects been left in the area of the cutting disc?
Does the cutting disc run freely and without grinding?

8. Operation and Maintenance

Check the blades, screws, and cutting disc regularly for wear.
Replace damaged or heavily worn parts immediately.
Clean the cutting disc regularly of grass clippings and dirt.
Do not use the lawn mower robot if unusual noises, vibrations, or running problems occur.
Use only compatible replacement parts and suitable mounting materials.

Note on Blade Replacement

Always replace blades in good time. Dull or damaged blades can worsen the cutting pattern,
place a greater load on the lawn mower robot, and impair safety.

9. Disclaimer

GRASBOT cutting discs, replacement blades, and blades are accessories and replacement parts for compatible lawn mower robots.
They are not original accessories from the respective device manufacturer unless this is explicitly
stated in the product description.

Assembly and use are carried out at your own responsibility. No liability is assumed for damage caused by improper assembly,
incorrect use, damaged components, or failure to follow the operating instructions of the lawn mower robot.

Warning in case of injury

If you are injured or have an accident, seek medical help immediately.

GPSR Information on Product Safety

Product safety information in accordance with Regulation (EU) 2023/988 on general product safety.

Manufacturer & Responsible Person (EU)

CUT GUARD

Polana Brzozowa 7C

59-900 Zgorzelec

Poland

E-mail:
info@grasbot.com

Website:
www.grasbot.com

Product Identification

Brand: GRASBOT

Product type: cutting discs, replacement blades and blades for compatible lawnmowers

Intended use: Accessories and spare parts for suitable robotic lawnmowers

Product type: Cutting and mounting components for use in robotic lawnmowers

Item number / model / variant: see the respective product description, packaging, or invoice

Compatibility: see the product description and the robotic lawnmower’s operating instructions

Important warning notice

Sharp blades. Risk of injury. The blades and Klingen can cause severe cutting injuries.
Assembly, disassembly, cleaning, and maintenance may only be carried out when the robotic lawnmower is completely switched off.
Always wear suitable protective gloves and wait until the cutting disc has come to a complete stop.

Proper use

GRASBOT cutting discs, replacement blades, and Klingen are intended exclusively as accessories and spare parts for compatible robotic lawnmowers.

The products may only be used for the intended purpose and only in conjunction with suitable, compatible devices.
Any other use, structural modification, or improper installation can lead to injuries, malfunctions, or property damage.

Not suitable for

Children.
People who have not read or understood the operating instructions for the lawn mower robot.
Incompatible lawn mower robots.
Devices with damaged blade mounting, damaged threads, or defective mounting points.
Use outside the intended application area.
Use as a tool, hand knife, or for other cutting work outside the lawn mower robot.

Safety and warning instructions

Use only for the intended purpose.
Use only with compatible mowing robots, suitable cutting discs, and appropriate mounting hardware.
Before any assembly, disassembly, cleaning, or maintenance, switch off the mowing robot completely.
If possible, remove the battery or disconnect the device from the power supply.
Always wait until the cutting disc has come to a complete stop.
Always wear suitable protective gloves.
Keep hands and feet away from rotating blades.
Never touch blades or the cutting disc during operation.
Do not use any damaged, bent, heavily worn, rusted, or corroded blades, screws, or cutting discs.
Regularly check blades, screws, and the cutting disc for secure fit, wear, and damage.
Use only suitable screws and appropriate mounting hardware.
If provided, use screws with thread-locking compound or suitable screw locking.
Keep children, pets, and bystanders out of the work area.
The mowing robot must not be operated when people, especially children, or animals are in the work area.
In the event of unusual noises, vibrations, grinding noises, or running problems, stop operation immediately and check the assembly.
In case of injury or accidents, seek medical help immediately.

Assembly instructions

Assembly may only be carried out when the device is switched off. Always follow the operating instructions of the respective mowing robot.

The cutting disc, replacement blades and blades must be seated correctly and securely fastened. After assembly, check
whether the cutting disc runs freely and whether no tools or foreign objects have been left in the area of the blades.

Checks before operation

Are all screws fully inserted and tightened securely?
Is the cutting disc correctly centered and securely fastened?
Are the blades mounted correctly?
Can blades mounted with movable bearings move freely, provided this is intended by the design?
Are there no visible signs of damage?
Does the cutting disc run freely and without grinding?

Maintenance and inspection

Regularly check the cutting disc, blades, screws, and cutting disc for wear and damage.
Replace damaged or heavily worn parts immediately.
Clean the cutting disc regularly to remove grass clippings, dirt, and deposits.
Do not use aggressive cleaning agents that could damage the material or coating.
Use only compatible replacement parts and suitable mounting materials.

Storage and Disposal

Store replacement blades, blades, screws, and cutting discs dry, clean, and securely.
Store them out of the reach of children and unauthorized persons.

Safely pack used, damaged, or dull blades and blades to avoid cut injuries.
Dispose of metal parts, packaging, and accessories according to locally applicable regulations.

Note on Original Accessories

GRASBOT products are compatible accessories and spare parts. They are not original accessories of the respective device manufacturer unless this is expressly stated in the product description. Brand names, model designations, and manufacturer information are provided exclusively for compatibility purposes.

Contact for safety concerns, complaints, or accidents

If you have questions about product safety, complaints, accidents, or indications of possible safety issues, please contact us immediately:

CUT GUARD
Polana Brzozowa 7C
59-900 Zgorzelec
Poland
E-mail: info@grasbot.com
Website: www.grasbot.com

Mowing disc eufy C15 – cutting disc for robotic lawnmowers