Wirtgen GmbH has launched the W 50 Ri and W 60 Ri cold milling machines. The entirely new and striking design has many technical innovations that result in enhanced performance, greater productivity and maximum ease-of-operation.
Wirtgen's goal is to provide customers with fit-for-purpose solutions which enable them to execute their jobs economically and on time, achieving the best possible quality.
Innovations in operation: Faster, better, more comfortable
The numerous auxiliary and automatic functions not only speed up work processes, but also significantly reduce the strain on the machine operator in day-to-day operations. Wirtgen's brand new in-house development LEVEL PRO PLUS (a levelling system), which is fully integrated in the machine control system, supports intuitive and simple operation to produce precise and high-quality milling results.
The pre-set target value for the milling depth (max. 210 mm for both models) is precisely controlled by robust displacement sensors in the hydraulic cylinders mounted on the side plates and displayed on the high-resolution colour display.
The slimline chassis was designed specifically to provide an unobstructed view of the milling edge to the front as well as to the left and right side plates, while the compact suspension of the loading conveyor makes for an unhindered view of the milled area behind the machine.
Driving and steering innovations
The generous locking angle on either side of t he W 50 Ri and W 60 Ri, results in extremely small turning radii that makes working in restricted areas easier and safer. The automatic tracking function of the rear inner wheel, when folded in, increases the manoeuvrability of these small milling machines.
The front wheels are offset by 15 cm (in the 4-wheeled version) to travel “fully in line” when the steering wheel is turned to the right. The extra-wide front wheels minimize the surface load exerted by the machine, which consequently reduces wear.
The driving dynamics package enables speeds of up to 12 km/h in the four-wheel version. This provides for higher travel speeds and faster project completion.
Innovations in milling and loading
These small milling machines can handle any job with maximum flexibility and performance thanks to their smart features. The new, completely round milling drum assembly, coupled with innovations in the milling drum, side plates, scraper blades and gradation control beam, make milling faster and simpler and produce a higher quality result.
The large conveyor slewing angles of 30° to the left and right allow material to be discharged even under difficult job site conditions. The hydraulically operated folding discharge conveyor – with a max. length of 5.60 m and a max. width of 350 mm – can be swiftly folded up on cramped job sites or for transport. The assembly and disassembly of the discharge conveyor is also greatly facilitated by the compact quick-change coupling for the hydraulic connections.
Innovations in milling and productivity
Wirtgen claim that the W 50 Ri/W 60 Ri can speed up completion of a project by as much as 20%, which makes these cold milling machines a key factor for success in road rehabilitation. The engine speed is automatically adapted to current requirements, yielding huge fuel savings despite the high engine output of 105 KW/143 BHP.
Three individually variable milling drum speeds each ensure an ideal milling performance for a broad range of applications. Thanks to the extremely low centre of gravity of the machines and the optimized weight distribution, these small milling machines ensure maximum traction for every application.
Raising the benchmarks with passion
It has taken three years of development and prototyping work to get these new machines ready for series production. Both the W 50 Ri and the W 60 Ri have demonstrated their abilities in various trial applications performed under the scrutiny renowned experts in the field of cold milling.
|W 50 Ri||W 60 Ri|
|Milling width||500 mm||600 mm|
|Milling depth||0 - 210 mm||0 - 210 mm|
|Engine power||105 kW / 143 PS||105 kW / 143 PS|
|Emission standards||EU Stage 3b / US Tier 4i||EU Stage 3b / US Tier 4i|
|Operating weight, CE||7.120 kg||7.500 kg|
|Milling drum drive||mechanical||mechanical|
|Number of wheels||3 (optional 4)||3 (optional 4)|
|Travel drive||hydraulic / all-wheel||hydraulic / all-wheel|