Why?

  • Mow your steep slopes remotely from a comfortable position
  • Work from a shade during hot summer days
  • Suitable for both fine grass and harsh brush
  • Fully battery powered. No gasoline, no oil changes, no engine problems
  • Reach low clearance areas (under benches, solar panels, ranch fences, vineyard vines)
  • Transport in your car trunk to different locations and help friends mow their slopes
Buy a Grator

Grator Lowrider

Our smallest, remotely controlled, battery powered robotic mower for steep slopes, tall grass and brush.

  • Battery duration

    2 hours of work per charge on steep slopes or tall grass. Even longer on easy terrain and regularly maintained lawn.

  • Made for steep slopes

    Grator easily climbs slopes up to 70° degrees. It performs equally well uphill, downhill, or horizontally.

  • Fits in the car trunk

    Total width 57 cm, length: 105 cm, height 30 cm. Cutting width: 56 cm. Total weight: 60 kg. It fits in a standard car trunk.

  • Self-servicing

    Designed to be user-serviceable. All the components are plug-and-play should anything ever need replacing.

  • No planned obsolescence

    Built to outlast its owner, much like the 1960's farm machines that are still in use after decades. No plastic except electrical insulation.

  • Low height of 30 cm (12 Inches)

    At only 30 cm (12 Inches) height the Grator can go under benches, around vineyard vines, under solar panels, ranch fences, and so on.

Customer Reviews

Based on 32 reviews
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Giorgio
Romanel-sur-Lausanne, Switzerland

I received the Grator Lowrider yesterday, and after following the instructions for charging the battery and joystick, I was able to mow the grass on my 4,000 m² property.

I must say your machine is absolutely perfect for this kind of terrain . The grass was over one meter high, and the grator handled the job brilliantly. I'm very pleased with your product and thank you sincerely for shipping it as quickly as possible.

The only small drawback is the battery life: it runs out after approximately 1.5 to 2 hours of use, which requires me to pause mowing until it's fully recharged.

Could you please let me know the price of an additional battery , including shipping costs?

Thank you in advance for your reply – and congratulations again on such a high-quality product.

Best regards,
Giorgio

G
Gérard Lang
Gries, France

J’ai offert un Grator à mon fils en Mars 2025.
J’ai cherché pendant 1 an une tondeuse forte pente radio commandé et qui soit abordable et efficace pour un usage privé et qui ne soit pas chinoise à cause des pièces de rechanges.
2 marques ont fait des démonstrations chez nous une tout électrique et une à essence. La seule qui me convenait bien c’était une électrique à 44 000€ professionnelle. Grator a les mêmes performances en 60 cm de largeur de travail que la professionnelle en 80 cm.
Nous sommes très satisfaits de cette machine. Bien cordialement Gérard

A
A. Chomat
Caloire, France

Good evening,

Sir, I just finished mowing a field (slope greater than 45°) that had been very overgrown for several years.

Result: an extraordinary machine ; nothing stops it, you can just see its lights moving forward.

The quality of the construction and the materials used will allow me to use it for a very long time.

Watching the videos, I was apprehensive about driving it with the remote control (I've never played video games), but it's actually very simple.

Very, very good equipment.

A.CHOMAT

M
Margarete
Judendorf-Straßengel, Austria

Ich möchte Ihnen zurückmelden, dass Ihr Grator einfach super ist! Ich bin begeistert! Ich hab schon die steilen Hänge damit gemäht. Alles super funktioniert!
Der Grator ist einfach nur super!!!!!!
Liebe Grüße aus Judendorf-Straßengel
Margarete

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David
Machynlleth, United Kingdom

Grator has arrived. So far very impressed with everything :-) I need to perfect the steering to stop the turf from churning over but very pleased.

You have built a fantastic product. So much easier than my flymo and much safer than the tractor. Brilliant. Worth the wait.

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Grator Mowers

The Grator Lowrider all-wheel-drive remotely controlled brush mower was initially created out of personal necessity by a group of friends who live on hilly terrain. We got tired of mowing slopes with string trimmers in the summer heat. The idea was to relax in the shade and play with the RC mower that can handle any type of grass and terrain.

Living on steep, rugged terrain, we needed a machine that could handle any scenario—something extreme, reliable, and unlike anything on the market. We refused to deal with gasoline engines or constant servicing, so we designed the Grator to be maintenance-free: just clean it with a leaf blower and recharge the battery. No oil changes, no tune-ups, no hassle.

Every mower we’d bought before broke down after a season or two. We wanted something that would last a lifetime—durable enough to survive rolling downhill, simple enough for us to repair with basic tools, and low-profile enough to mow under benches and fences.

Over time, the Grator became our obsession. We set a hard rule: it must outperform any competitor in its class (60 cm / 57 kg) by at least 60%.

The result isn’t as cheap as mass-produced mowers, but the difference in quality is obvious—even in videos. Our goal for the Grator is to be the last mower its owners will ever need.

Have a question? See the answers here or contact us below.

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