Remote-controlled mowers for steep slopes — compared

If you are looking for a remote-controlled slope mower — also called an RC slope mower, a radio-controlled hillside, bank or embankment mower, or a steep-slope robotic mower — this page puts the machines most often shortlisted for steep terrain side by side: the Grator Lowrider, SPIDER ILD02 EFI, agria 9500-70, POGO MTECH SKK55, Raymo Torpedo and Mowrator S1 4WD, plus the two heavy tracked diesel machines (Green Climber LV 300 PRO, Energreen RoboEVO) for scale.

Also searched as: ferngesteuerter Hangmäher / Böschungsmäher (DE), trinciatrice radiocomandata per pendenze (IT), tondeuse télécommandée pour pentes / talus (FR), daljinsko vodena kosilnica za strmine (SL).

This page is written and maintained by Grator, the maker of the Lowrider. Every competitor figure is taken from that manufacturer's own page and linked in the Source column so you can verify it. Values checked on ; prices and specifications change, so treat them as a snapshot. Where a manufacturer does not publish a value we write “n/a” or “on request”.

Specification comparison

Machine Maker (country) Drive Power Claimed max slope Cutting width Weight Price (as published) Source
Grator Lowrider
Remote range 200 m · 2+ h runtime · 105 × 60 × 30 cm		 Grator d.o.o. (Maribor, Slovenia) Wheels, 4×4 electric all-wheel drive Battery, 52 V / 40 Ah Li-ion, swappable; 2000 W electric mulcher 70° — manufacturer: needs dry, firm ground with thick grass; “edge-case engineering capability, not a safe operating recommendation” 56 cm 60 kg €4,800 excl. VAT (0 % with a valid EU VAT number); extra battery €1,250 excl. VAT grator.com/faq, grator.com
SPIDER ILD02 EFI
Remote range 100 m · 16 l tank · 164 × 142 × 92.5 cm		 DVOŘÁK – svahové sekačky s.r.o. (Pohled, Czech Republic) Wheels, 4×4, 360° wheel steering, hydrostatic Petrol, Kawasaki FS730V-EFI, 19 kW (25.5 HP) 60° with the integrated stabilising winch; 41° without. Manual (dry): 35° across, 36° up-and-down, 41° diagonal; wet without winch: 20° 123 cm 387 kg (product page; manual states 372 kg) “Price from 34.800 €” (VAT status not stated) spidermower.com, operation manual (PDF)
agria 9500-70
Remote range 300 m max (100 m recommended) · 110 × 105 × 65–75 cm		 Agria-Werke GmbH (Möckmühl, Germany) Rubber tracks, 48 V brushless electric track drive Petrol-electric hybrid: Briggs & Stratton Vanguard 11.9 kW (16.2 PS) drives the blade and a generator 45° (100 %) 70 cm approx. 349 kg (with full fuel canisters) On request (not published by agria); a German dealer lists the 9500-70 premium at €28,184 incl. 19 % VAT agria.de, dealer price
POGO MTECH SKK 55
Remote range up to 400 m (200 m recommended) · 6 l tank		 Pogo M-Tech (Miklavž na Dravskem polju, Slovenia) — vendor; manufacturer not stated on the vendor site Rubber tracks (120 mm), 0.7 kW brushless electric track drive Petrol-electric hybrid: Loncin 224 cm³ 9 HP with 1.5 kW generator and 24 V battery 35° 55 cm 160 kg €4,800 incl. VAT (€3,934.43 excl.) pogo-mtech.com
Raymo Torpedo
Remote range 300 ft (≈90 m) · 51 cm high · modular decks and power cartridges		 raymo s.r.o. (Havlíčkův Brod, Czech Republic) Wheels, 4WD zero-turn, 2 × 1000 W electric drive Battery (POWERSWAP electric or plug-in hybrid cartridge; capacity not published) Up to 45° (Raymo USA spec sheet; the European site gives no figure) Deck-dependent; R52TURF 132 cm; R42FLEX / R48CRAFT widths not published in cm Up to 550 lb (≈250 kg) depending on attachments On request (quote via configurator) raymoelectric.com, raymousa.com, R52TURF deck
Mowrator S1 4WD
Remote range n/a · 1.5 h (12 Ah) / 2.25 h (18 Ah) runtime · 70 l grass bag		 Mowrator — seller of record Reemo Innovation Limited (Hong Kong); US support, EU/DE web stores Wheels, 4WD, four brushless motors (1000 W) Battery, 56 V 12 Ah or 18 Ah LiFePO4 37° (75 %) on standard wheels; 40° (85 %) and 50° (119 %) editions with wide / deformable tyres 53 cm (21 in) 52 kg (114.8 lb) €4,249 incl. 19 % VAT (EU store, 12 Ah); US store $3,499 regular / $3,149 sale mowrator.com, eu.mowrator.com
Green Climber LV 300 PRO
Remote range 100 m · 186 cm long, 108 cm high		 MDB Srl (Fossacesia, Italy) Rubber tracks, hydrostatic, expandable undercarriage (114–154 cm) Diesel, Yanmar 19 kW, Stage V 60° in all directions n/a (flail / mulcher heads; width not stated on the model page) 950 kg On request mdbsrl.com
Energreen RoboEVO
Remote range 150 m · 28.5 l tank		 Energreen S.p.A. (Poiana Maggiore, Italy) Rubber tracks, hydrostatic Diesel, Yanmar 40 HP (27.5 kW), Stage V 61° in all directions n/a (HEAD 130 / HEAD 155 mulching heads; width not stated as a figure) 1200 kg (with super rubber tracks) On request energreen.it

Checked 2026-09-07. Conversions in brackets (lb → kg, ft → m) are ours; every other number is quoted as published. Grator’s own figures come from grator.com/faq.

How to read the slope figures

Every “max slope” in the table is a manufacturer figure under ideal conditions: dry, firm ground, good grass cover, driving straight up and down. None of them is a promise for your hillside.

Wet grass and side-hill traversing reduce the safe angle for every machine. SPIDER’s operation manual is the most explicit we found: in dry conditions it allows 35° cutting across the slope, 36° up-and-down and 41° diagonally, and 60° only when anchored on the integrated stabilising winch; when the ground is wet or foggy the limit without the winch drops to 20°. The manual also notes that climbing ability “will rapidly change on dry, wet or moist grass” and that side-slip is larger on newly built slopes than on hard ground.

Grator states its 70° the same way. The Lowrider will climb 70° only when the ground is dry, hard and firmly held together with thick grass; Grator calls that an edge-case engineering capability, not a safe operating recommendation. Its practical advantages on steep ground are the 60 kg mass, the 30 cm height at the lowest deck setting and four independently driven wheels — there is very little to tip over and no petrol to slosh.

Two figures that look alike are not: 45° is a 100 % gradient, 60° is 173 %, 70° is 275 %. When a listing quotes percent, convert before comparing.

Which one for which job

  • Professional roadside, embankment, dam and solar-park fleets with a trailer and a trained crew → the SPIDER ILD02 EFI or agria 9500-70 class: 350–390 kg, 70–123 cm decks, thousands of square metres per hour, five-figure prices and a dealer network. For brush, saplings and forestry work the 950–1200 kg diesel tracked machines (Green Climber, Energreen RoboEVO) go where a mower should not.
  • Very steep private or agricultural land — vineyards, orchards, hillside gardens, ski slopes in summer — transported in a car boot, with no petrol, no fumes and little noise → the Grator Lowrider: 60 kg, 105 × 60 × 30 cm, swappable 52 V battery, 2+ h per charge, 56 cm mulcher, engineered for the steepest angles in this table. It is not a fleet machine: one battery, one blade, one operator.
  • Budget tracked hybrid with local parts and service in Slovenia, slopes to 35° → the POGO MTECH SKK 55: 160 kg, 9 HP petrol engine driving a generator for the electric tracks, €4,800 incl. VAT.
  • Quiet electric machine for municipal or contractor use with interchangeable wide decks, hybrid option and fleet telemetry → the Raymo Torpedo: 4WD zero-turn carrier, 132 cm turf deck, low 51 cm profile for solar parks, quoted per configuration.
  • Lawn-sized steep gardens up to about 37–50° with a grass bag and leaf vacuum at a consumer price → the Mowrator S1 4WD: 52 kg, 53 cm deck, 56 V LiFePO4, €4,249 incl. VAT from the EU store; check local warranty support before buying.

We make the Lowrider, so read our recommendation as a maker’s view. We linked every competitor’s own page so you can check the numbers and ask them for a demo too.

Frequently asked questions

What is the steepest slope a remote-controlled mower can handle?

Published maximums range from 35° (POGO MTECH SKK55) through 45° (agria 9500-70, Raymo Torpedo) to 60–61° for the heavy tracked diesel machines (Green Climber LV 300 PRO, Energreen RoboEVO) and for the SPIDER ILD02 EFI when anchored with its stabilising winch (41° without it). The Grator Lowrider is engineered for up to 70°, which the manufacturer ties to dry, firm ground with thick grass and calls an engineering limit rather than a routine working angle. Every figure is a manufacturer claim under ideal conditions; wet grass, soft ground and side-hill traversing lower the safe angle for all of them.

Tracks or wheels for steep slopes?

Both work, for different reasons. Heavy machines (300–1200 kg) use rubber tracks to spread their weight and resist derailment; agria, POGO, Green Climber and Energreen all do. Wheeled machines rely on a low centre of gravity and per-wheel drive: the SPIDER ILD02 EFI uses four 360° steering wheels plus a winch for the steepest work, while the 60 kg, 30 cm-high Grator Lowrider has so little mass and height that a 4×4 electric wheel drive holds it on angles a heavier machine would need a winch or tracks for.

Battery or petrol for slope mowing?

Petrol and diesel still dominate the professional fleet class (SPIDER, Green Climber, Energreen) because a 16–28 litre tank refuels in the field. Hybrids (agria 9500-70, POGO SKK55, Raymo with the plug-in cartridge) keep a combustion engine but drive the tracks or wheels electrically. Fully battery-electric machines (Grator Lowrider, Mowrator S1, Raymo electric cartridge) are quiet, fume-free and need almost no maintenance; the Grator runs 2+ hours per 52 V / 40 Ah battery, recharges in about 3 hours and takes a second swappable battery for longer days.

How much does a remote-controlled slope mower cost?

As published in September 2026: the POGO MTECH SKK55 lists at €4,800 incl. VAT and the Mowrator S1 4WD at €4,249 incl. VAT in the EU store; the Grator Lowrider is €4,800 excl. VAT (0 % with a valid EU VAT number) with an extra battery at €1,250; a German dealer lists the agria 9500-70 premium at €28,184 incl. VAT; SPIDER states “from 34.800 €” for the ILD02 EFI. Raymo, MDB and Energreen quote on request.

Can a remote-controlled slope mower fit in a car?

Only the lightest class. The Grator Lowrider (105 × 60 × 30 cm, 60 kg) and the Mowrator S1 (52 kg) can be lifted into an estate car or van by two people. The 160 kg tracked POGO SKK55 needs a ramp and a trailer or van, and the 350–390 kg SPIDER and agria machines — let alone the 950–1200 kg diesel tracked mowers — are trailer machines.

See the Lowrider on a real slope

The Grator Lowrider is €4,800 excl. VAT, sold direct from Maribor, Slovenia (about 30 minutes from Graz airport) and through dealers, with a 2-year warranty. Our demo area in Maribor has the kind of slope this page is about — bring your own grass conditions in mind and we will show you what 60 kg and four driven wheels do on it.

Made in Maribor, Slovenia, EU.

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