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Eurosystems RS90 Wheeled Self-propelled Petrol Rotary Scythe Mower - Loncin 139 OHV

Eurosystems RS90 Wheeled Self-propelled Petrol Rotary Scythe Mower - Loncin 139 OHV
Double ECO packaging
floating knives rotary disc
Recommended working surface
3000 m²
Transmission type
Drive belt
Single speed
Motor brand
Cubic Capacity
139 cm³
Rated output
4.5 HP
Engine Model
Motor/blade transmission
Middle drive belt
Multi tool (additional accessories available)
Manufacturing Country
Free items: 2 bottles of 600 ml engine oil each
Free items: Replacement spark plug kit
Protection kit: gloves, googles, ear defenders, Agrieuro headscarf for free!
Free gift: fuel jerrycan 5 lt
Free items: 2 bottles of 600 ml engine oil each
Free items: Replacement spark plug kit
Protection kit: gloves, googles, ear defenders, Agrieuro headscarf for free!
Free gift: fuel jerrycan 5 lt
€ 901,30
VAT Included
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ID: K602272

EAN: 8025004012882

MPN: 00965300600

RS90 Eurosystem Rotary Scythe Mower

The RS90 is a self-propelled petrol rotary scythe mower featuring pneumatic sculpted tractor wheels driven by an oil-bath worm screw transmission. Its 57 cm rotary scythe (included in the listing price) is made of a rotating disc equipped with 4 retracting blades rotating on their axis (the blades retract inside the body in case of shock).

The machine is equipped with an excellent Loncin 139 engine. This is undoubtedly the most advanced and effective cutting system on the market nowadays as it emulates the heavy-duty tractor-mounted rotary scythe mowers.

Suitable for all kinds of surfaces and any kind of grass (tall, short, thick, slender, straight, bent or crushed by weather conditions).

139cc Loncin Engine

The LONCIN engine is lightweight, high-performing and suitable for works which require a quite high power.

Powered by a 4-stroke petrol engine 139 cc, belonging to the latest technology with overhead valve “OHV”single cylinder and a forced air cooling system.

Fuel tank capacity: 0.9 L

Oil tank capacity: 0.55 L

Focus on the recoil start The electronic ignition transistor is used in order to get a reliable ignition, and engine oil flutter lubrication ensures a constant oil supplement for internal components, protecting the engine and extending its life.

Focus on the filter.

Nominal Power: 4.5 HP
The correct term would be "Commercial” Power, meaning the classic definition standard of power officially used until a few years ago by all leading engine manufacturers.

* This figure is even more widespread and advertised in the leading commercial channels, although it is a matter that it is higher than the actual power.

Effective power: 3.6 Hp
It corresponds to the real power expressed by the motor shaft. This is the power indicated as official in the manual or in the technical data of the motor manufacturer.

* This technical data may vary for the same engine model depending on the rotational speed supplied by the engine applied to the equipment.


Please read carefully the instruction manual before starting.

Optional accessories not included in the price

The following accessories are not included in the machine price.

FRONT BLADE: suitable for small amounts of snow, sand, dirt and so on.

PAIR OF SNOW CHAINS: perfect combined with the FRONT BLADE accessory.


The photos are only illustrative, they may differ from the main product.

57 cm Rotary Sickle Bar

Cutting diameter: Ø57 cm

Blade rotation speed: 2300 g/min

Cutting height: 36 mm

Cutting system: n°4 swing knives that form a 90° angle, with double edges. The knives slide back inside in case of shocks or collisions with stones.

Controls and Steering Handles

Upper metal red lever: Cutter bar engagement/disengagement.

The lower (right) black lever engages the forward gear

Throttle lever.

Screw for handlebar height adjustment.

Intermediate Transmission and Tractor Wheels

Oil-bah worm screw intermediate transmission.

Large-sized tractor wheels: 13x5.00 - 6.

Their remarkable sculpting allows the mowers to move even on difficult terrain, always maintaining a perfect grip on the ground.

Focus on the screws for wheel disassembly.

Final Belt Drive

Final belt drive between rotary sickle and central machine transmission (protected by the black front casing in the photo).
This drive system increases the machine durability. The belt works almost like a clutch: it tends to slip in case the blades collide with something. Thus, the machine components that are normally subject to wear will last longer.

However, we recommend you to avoid hitting obstacles with the scythe mower and using it on stonysurfaces.

Another great advantage of the belt-driven transmission consists of the blade engagement/disengagement lever (upper red lever). The Operator can activate the petrol scythe mower blade only if and when necessary; where there is work to be done. Self-propulsion can be used to move the machine around even when the blade is disengaged. It allows, for instance, to move the equipment using the self-propulsion on the wheels while the blade is stopped.

Product Features
RS90 - Loncin 139
Body material:
Enamelled steel
floating knives rotary disc
spark ignition
Recommended working surface:
3000 m²
Manufacturing Country:
Motor data
Motor/Engine brand:
Engine Model:
Motor type:
4 stroke
Cubic Capacity:
139 cm³
Number of cylinders:
single cylinder
Rated output:
4.5 HP
Power supply:
Overhead Camshaft
Engine lubrication type:
Oil bath
Pressure reducing system:
Tank capacity:
0.9 L
Oil tank capacity:
0.55 L
Motor/blade transmission:
Middle drive belt
Manufacturing Country:
Transmission data
Transmission type:
Drive belt
Number of forward speeds:
Single speed
Forward speed:
2,6 km/h
Actioning :
Gear lever
Cutting data
N° of blades:
Blade movement:
N° of knives:
Blade engagement:
Lever on the handle
Cutting width:
57 cm
Multi tool (additional accessories available):
Snow plough accessory + snow chains:
CE compliant safety features:
Recoil Starter (cord):
Rear wheels size:
13 x 5.00 - 6
Height adjustable handle:
Side adjustable handle:
Rubber-coated soft grip:
Foldable/collapsible handlebar/s:
Free gifts/extra features
Free engine oil bottles :
Maintenance tool kit:
Instructions manual:
Dimensions and logistics
Product dimensions cm (LxWxH):
154x62x117 cm
Net weight:
63 Kg
On pallet
Packaging dimensions cm (LxWxH):
79.5x60x58 cm
Gross weight (packaging incuded) :
40.1 Kg
Assembly time:
60 minutes

1° GIFT: Spare parts & Maintenance kit for petrol engines

Universal spare parts and accessories kit for the maintenance of petrol engines of agricultural machinery.

WARNING: this kit is not suitable for all the engines available on the market, but it just suits with some of them.
We do not provide any different kit than the ones published on our website, and the kit suitability to the products that are not purchased on our website is not ensured.

Included in the packaging:

  • 1 GeoTech original spark plug.
  • 1 Professional articulated spark plug wrench.


2° GIFT: 600 ml engine oil bottles

COMPLIMENTARY: Two sae 15W 40 600 ml of engine oil. Specific lubricant for 4-stroke gardening engines up to 10 hp. Good cleansing and dispersion.

COMPLIMENTARY: Heavy-duty 5L Plastic Fuel Tank With Flexible Pouring Spout

Fuel tank: 5 L capacity

Professional ONU approved tank, made of certified plastic material.

With sealing cap equipped with comfortable anti-fall clamp.

Flexible pouring spout equipped with independent assembling sealing ring.
It allows a simple fuel dosage without the risk of spilling it.

The insides are made of exceptionally thick plastic, which makes these tanks especially sturdy and anti-drilling.

Furthermore, the plastic is red so as not to allow the penetration of light, ensuring the optimal fuel conservation.

Focus on the carrying handle and housing for the flexible pouring spout

WARNING: petrol and mixture tend to lose their characteristics and to deteriorate quickly when in contact with light. For this reason, traditional transparent tanks are strongly discouraged for these fuels (as well as for poor security reasons)



Protective earmuffs to work with maximum comfort
Ear protection must be performed correctly in every working condition. In this case, the earmuffs provided on standard kit are specifically designed to protect the operator against the noise coming from the brush cutter.

Protective goggles that can be used as an alternative to the visor mask.
Protective mask goggles in polycarbonate with CE certificate,equipped with anti-fog and anti-scratch panoramic screen. The ventilation is ensured thanks to the holes made on the frame to avoid obfuscation and to improve comfort of use.

Agrieuro headscarf 100% cotton

Cotton gloves

Free Items Included

The machine is shipped in its original packaging

Instruction manual included in the packaging

The engine is provided without oil. Bring the oil at the correct level before first start.