Liebherr is presenting its new railroad excavator underneath a brand new product title on the twenty ninth Worldwide Exhibition for Monitor Expertise (IAF) 2025 going down this week (20-22 Might) in Münster.
With its new product designation, the brand new RE 25 M Litronic emphasises the significance of the rail machines for the Liebherr website in Kirchdorf. With the brand new title, Liebherr is highlighting the railroad excavator as a separate product line, distinguishing it from the wheeled excavators and thus giving it higher emphasis. In precept, RE stands for ‘rail excavator’, the quantity signifies the working mass and ‘M’ stands for the wheeled undercarriage. All future railroad excavators will comply with this designation. The A 922 Rail and A 924 Rail already accessible available on the market will proceed to function underneath their acquainted names.
The RE 25 M Litronic expands the prevailing portfolio with a machine within the 25-tonne class with hydrostatic rail wheel drive and a profiled uppercarriage. The mannequin makes use of the parts of the earlier fashions and dietary supplements them with an undercarriage idea, a brand new uppercarriage design and a brand new operator’s cab with an intuitive management idea.
The RE 25 M Litronic railroad excavator, the primary mannequin within the 24.4 to 25.7 tonne working mass vary, is provided with the confirmed engine of the A 922 Rail railroad excavator with an engine energy of 120kW.
The small tail swing radius of 1.57 metres stands out, making certain that the rear of the machine all the time stays inside the clearance profile when swinging. This will increase security and in addition allows Liebherr to open up new markets with this requirement, resembling France.
The brand new undercarriage within the RE 25 M shall be customary in all future rail machines. Specifically, the brand new rail information system (patent pending) units the course for the long run: because of the hydrostatic rail wheel drive, the railroad excavator can journey within the excavated state (class 9A).
However, the RE 25 M can decrease itself onto the tracks with the highway tyres and thus generate the required traction with the tyres on the rail (class 9C). Because of this the RE 25 M can’t solely work and drive in a single place, but additionally – the place permitted – work within the lowered place and drive within the raised place, thus avoiding injury to the rail infrastructure. That is made potential by a very redesigned storing and oscillating system for the rail information system.
 What’s extra, the oscillating axle is adjustable: when the RE 25 M is in use, the oscillating axle locks to make sure a secure footing. When driving, the oscillating axle is open, thus making certain the very best traction. Because of the newly developed rail axle, the machine has a drawbar pull of fifty kN and, with the suitable country-specific approval, can attain journey speeds of as much as 40 km/h – in an emergency, the RE 25 M may even be towed at as much as 60 km/h.
Optionally, the undercarriage of the RE 25 M will be outfitted with the progressive, centrally mounted two-point stabiliser to realize greater hundreds. On the similar time, nevertheless, the undercarriage stays compact, which implies that visibility within the neighborhood of the machine just isn’t restricted and work will be carried out effectively at shut vary. Because of the kinematics (patent pending), the progressive stabilisers stay very near the machine even when prolonged, and so they hardly widen it in any respect. This additionally makes it potential to make use of the stabilisers in confined development website situations.
Along with the small tail swing radius, new designs on the RE 25 M’s uppercarriage be certain that the machine could be very straightforward to keep up. Regardless of the brief tail swing radius, entry to the uppercarriage is feasible simply behind the cab. The design of the counterweight additionally contributes to the machine’s maintenance-friendly design. The upkeep flaps are built-in into the counterweight and guarantee optimum entry to the hydraulic pump throughout upkeep. The counterweight will be simply eliminated for main upkeep. The brand new exhaust fuel remedy system is positioned above the engine and will be folded up for upkeep.
The brand new storing of the double cabin with the pilot seat on the higher carriage will increase the consolation for the driving force. The RE 25 M affords a consolation seat as customary and has a very new door system. This permits the doorways to open in direction of one another and swing across the B-pillar. Because of the INTUSI adaptive working idea, the earlier management panel on the steering column beneath the steering wheel is not wanted. Sooner or later, this shall be built-in into the INTUSI show, so there shall be no restrictions within the visual view.
The hydraulics idea of the brand new machine features a Liebherr double variable displacement pump with unbiased regulating circuits and a stream charge of two x 220 l/min. Because of this highly effective hydraulic attachments will be operated independently of the working and driving actions of the Liebherr rail-road excavator.
As well as, a second excessive strain circuit affords the choice of straight controlling three hydraulic features for particular attachments. The Liebherr RE 25 M railroad excavator impresses with its efficiency: with its 120kW / 163HP engine, the machine achieves a excessive working pace with the same old fluid work actions.
