mod.XJM with built-in engine

Both the Xj and Xjm range of RM hose-reel irrigation machines feature a structure that can be hydraulically lowered. Therefore, two positions are determined: on wheels to allow its transfer on road or standing on the ground during work phase. The latter position allows the hose to be unwound in any direction - 360° movement - without having to reposition it again. Moreover, the base resting on the ground gives the machinery a high anchoring which is very useful with long hoses with a large diameter. 

The transverse width of the highest reel allows to considerably lower the overall height of RM machines and their barycentre, thus making them among the stablest ones on the market. Monolithic RM frames are free from any screwed structural elements, manufactured in a single block and hot-dip galvanized, designed through a three-dimensional calculation system. All models of the XJ and XJM series are equipped with barycentric axle on wheels, thus rendering their transport easy and safe under any running condition.

Such setting - obtained by moving the wheels towards the bar – translates into a less load on tractor hitch system, thus making its use easier even with small-sized vehicles. Moreover, all models have rear telescopic anchoring brackets that can be individually enabled on the two sides of the machine.

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The energy required to rewind the hose is the decisive element in the economy of the self-propelled irrigation machines: RM Turbo-Reducer Unit with in-built water By-Pass and four-speed gearbox drastically reduces pressure losses during the irrigation phase, thus ensuring money saving determined by less energy consumption.      

The design of the turbine impeller is the result of a cutting edge aerodynamic calculation which allowed reaching an extraordinary channelled flow of the liquid without any turbulence, thus ensuring the operation with a minimum pressure of 1.5 bar at machine inlet. The quality of the Turbo-Reducer Unit is obtained by using all the movable internal parts in stainless steel, such as all bearings (including the ones of the turbine axle) in class A dipped in oil bath.

The system includes a built-in automatic brake that engages during hose unwinding and disengages during rewinding. Moreover, at the end of rewind the Turbo-Reducer positions the “Operation-Stop” lever to the correct position for the following hose unwind.

The exclusive RM Power Save™ system allows for a practical, quick speed change even during the normal hose rewind with water under pressure, thus immediately reducing the turbine rotational speed without having to act on the electronic programmer controls.

RM Turbo-Reducer Unit does not require any periodic maintenance. Moreover, at the end of sprinkling process every liquid residue is automatically ejected from the turbine body.

ACCURACY IN ROTATION, by means of chain drive

Another remarkable characteristic of RM hose-reel irrigation machines: starting from the 581 Gx Evo model the drive between turbo-reducer and reel is manufactured with high-tensile strength ARNOLD STOLZEMBERG® chain with extruded rollers and without extension.

Moreover, by using the adjustable toothing (another exclusive of RM) located in the outer reel diameter, a very high transmission gear ratio is created between the wheel and turbo-reduction gear in order to drastically reduce the energy absorption for rewind as well as the turning moment in the reduction gear output shaft, thus preserving its duration in time.

In the MAJOR EVO and MAGNUM (optional mod. 900) models drive chains are located on both reel sides in order to also cancel the torque effect of reel.

REEL AXLE: the best technology available in the market

Reel mass with its hose in polyethylene wound and filled with water reaches 80% of machine weight.

Supports on which reel rotates are subject to very high loads, thus generating high frictions, which must be minimized in order to reduce the effort required for the movement.                 

RM reel axle is:    

  1. Supported by large diameter rolling-element bearings that cancel frictions (1);   
  2. Protected by an interchangeable stainless steel compass (2) on which lip seals operate, thus ensuring that it lasts long even in the presence of aggressive fluids such as sludge.       
  3. Aided maintenance: when lip seals are worn out, they can be replaced in a few minutes.

This technology – an exclusive of all RM models – is applied to the whole range, including the cheapest models.

INTUITIVE OPERATION by means of RM RainMaster 2.6 programmers

RM electronic programmers were designed to be perfectly built into the irrigation machine. They are simply to use and feature an intuitive, multilingual display; it can be easily bypassed without interrupting the machine irrigation cycle in order to switch from automatic to manual operation. Electromechanical drain and/or shut-off valves, GSM modem, solar panel for battery and anemometer recharge are available as optionals. The optional additional gun of rewind end can be controlled as well.


AN EXCEPTIONAL GRIP by means of height-adjustable towing hitch eye


All the XJ and XJM models are fitted with the towing hitch eye whose height can be adjusted through simple gudgeon pins.

MULTI-SECTION TECHNOLOGY for an indestructible reel structure

Starting from the 581Gx model the reel resorts to the multi-section ribbed technology fitted with sides completely made up of high strength DOMEX 420™ sheet with yield load to 420 kg/mm2, made up of wedges precut by means of HD Laser system and then assembled through robotic welding. This leads to a high resistance to bending stress, despite the reel lightness, and to an increase by 300% of the PE hose supporting surface on reel sides  - a remarkable advantage compared to the outdated system of side tubular tires. The internal ferrule is made up of calendered flat sheet, which helps preserve, then extend the duration of the polyethylene hose in the course of time.

The 800, 840, 900 models feature the “tapering profile” side reel section, so that all side bends can be effectively counteracted even during the most difficult rewinds. Sections of each side were designed to be fully and thoroughly coated by the double-layer painting treatment even in the most internal parts. In that way steel does not deteriorate in the boxed or hidden parts. A side white segment allows checking the regular reel rotation even from a great distance.


All sprinkler trolleys are available in the two- or four-tyred wheel version or made up of cast iron with directional crests. The latter ones - expressly conceived for the rain gun trolleys of RM hose-reel irrigation machines – increase trolley stability, improve its orientation and distribute the weight where necessary. Both wheel types can be replaced swiftly and fitted with hubs with tapering bearings and lubricator. The whole trolley structure is hot-dipped galvanized, thus ensuring an outstanding lifespan and much attention was paid to adjustments, which are very user-friendly and can be locked by means of gudgeon pins. Even all the critical problems connected to the rewind phase were thoroughly analyzed, designing the shape of the middle hose next to the PE hose in order to cancel any entanglement with crops during the rewind phase.

HIGHER RESISTANCE TO AGING thanks to RM painting cycle

A preventive pickling treatment is performed on the painted parts of all RM machines as well as a following painting process through a double-layer electrostatic system – which ensures a coating even in the most hidden machine parts – with highly eco-friendly water-based paints and primer. Each cycle is accompanied by an in-oven stabilization treatment at 60°C, thus obtaining surfaces which are highly resistant to corrosion and especially to UV rays.

DISTRIBUTION ALWAYS PERFECT thanks to the exclusive VertiLift™ lifting system

All the XJ and XJM line models of RM hose-reel irrigation machines are fitted with the automatic “VertiLift™” lift of trolley during sprinkling end phase. The exclusive progressive compass system holds the rain gun in a vertical position, thus making the sprinkling action effective until trolley has been lifted from the ground, and correcting any drop between machine and rain gun trolley.

DOUBLE AXLE WITH ASYMMETRICAL ROCKER ARM less effort on towing on every kind of ground

All the machines of the XJ and XJM series fitted with double axle with isodiametric wheels feature the asymmetrical rocker arm. This solution allows for a remarkable reduction in towing on rough soils, which – accompanied by a reduced side overall dimensions – also ensures a better distribution of weight during the steering phase, thus making the machine handier than the axle. Machines can be fitted with different size tyres, among which those having a “Big Size” type big section. Nitrogen-charged shock-absorbers – supplied as standard starting from the 900 model – improve the absorption ground unevenness and reduce bar pitching during towing.

GUARANTEE OF RELIABILITY, as machines are tested one by one.

All RM machines are thoroughly tested before being shipped to the customer. They undergo both mechanical tests – to check their operation – and hydraulic tests by means of pressure water at 12 bar to check the accuracy of joints and connections and the resistance of various components to water pressure.

ATTENTION PAID TO THE ENVIRONMENT by means of state-of-the-art technologies

RM manufactures its machinery and equipment in compliance with the environmental protection. They use raw materials coming from eco-friendly, certified cycles; they use exclusively water-based paints; they implement technologies in order to reduce energy consumptions. Those are some of the principles determining the technical choices for RM hose-reel irrigation machines, believing that only an attentive approach to those themes – aimed at reducing pollutant emissions – makes the external environment cleaner and the work healthier for workers.

Very high-quality POLYETHYLENE HOSE with differentiated thickness

All RM hose-reel irrigation machines feature the medium density polyethylene hose (PEMD) with differentiated thickness starting from ø 90 included; the highest thickness near the reel allows for a better accuracy on rewind and a less ovalisation due to hose bending.


The innovative CWM (Cooling Water Motor) system – which is available as optional on some diesel engines – allows cooling motor liquid (C/D) and air coming from turbocharger (E/F) through the passage of water for irrigation (A/B). This exchange process of heat on the spot allows for an efficient, effective motor cooling, thus eliminating the traditional cooling fan with its relevant radiator.          

Eliminating radiant masses cancelled the essential cleaning with frequent motor stops determined by the constant clogging of the suction zone due to the presence of day and night insects and dust.      Its application – the result of an in-depth study ended with the patenting of the whole system – allows reaching the maximum dissipation of heat with an abatement of fuel consumption up to 10%, besides the remarkable quietness (approximately 20 decibel less).

All of this makes the XJM range machines with on-board motor pump among the only ones to being included in the parameters set forth by the new EC Directives and the national laws on noise pollution.

REWINDING SYSTEM through RM Turbo-Reducer or through hydrostatic transmission

Hose-reel irrigation machines with in-built motor pump are fitted with RM High-Performance Turbo-Reducer to rewind the hose. This system allows using (if need be) the models of the XJM series as a normal irrigation machine, that is without compulsorily using diesel engine during rewind.

This option – one-of-a-kind in the scenery of irrigation machines – proved to be extremely efficient to reduce fuel consumption of motor pump unit, as there are not expensive hydrostatic transmissions. (available upon request, if any)

RM MULTI-STAGE PUMPS, reliability and efficiency made in Italy

The pump in the hose-reel irrigation machines of the XJM range is the throbbing heart of operation. For that reason - besides the wide selection determined by the collaboration with the most important national manufacturers, - RM manufactures on its own a range of multi-stage centrifugal pumps which are especially innovative, using the same care, thoroughness and quality as the ones found in its machines. The entire manufacturing process takes place in Italy, under the direct control of RM engineers in order to ensure a high performance, which is essential for a long-lasting, effective work.


All the XJM models are fitted with a great-capacity fuel tank with a vertical development. This makes it impervious to the machine tilt variations. It is not incorporated into the frame, and it is  positioned between diesel engine and reel, or in the rear in the MAGNUM Xjm models.                                 

All tanks are fitted with right-hand and left-hand refuelling union with key-locked plugs.

Moreover, an oversize tank of approximately 800 litres assembled in the rear can be requested for the 900 Xjm and MAJOR Xjm models.


All models of the XJM series are equipped with a complete hydraulic system to position the machine and dip tube, manufactured with six-lever spool valve, and by the 900 model assembled on the 180° practical swivelling arm. for the total visual check of positioning movements: up and down motions of the independent rear brackets (RH and LH), up and down motions of the right-hand wheel, up and down motions of the left-hand wheel, up and down motions of the bar base, rotation of base bearing centre plate. Moreover, another two-lever spool valve allows swivelling the dip tube carrying arm and moving the winch up and down. The hydraulic system can be enabled by a hydraulic pump assembled on the main diesel engine or by an independent four-time auxiliary motor (on request).

By means of the eight-channel “COMMANDER™” radio-controlled system (optional), all the machine movements can be enabled remotely.



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