New product of National IV Emission Standard: Reducing Carbon Footprint: Witergen's medium-sized Milling machine W 185 CFi Performs well in Construction site maintenance

According to the "2022-2026 China Highway Maintenance Industry Competition Analysis and Development Forecast Report" by the China Research Industry Research Institute, at present, China's highway network has basically taken shape. After large-scale construction, it will inevitably bring about heavy maintenance tasks. According to data from the Ministry of Transport, by the end of 2021, the mileage of highways under maintenance was 5.2516 million kilometers, accounting for 99.4% of the total mileage of highways, approaching 100%, indicating that the current coverage level of highway maintenance in China is relatively high.

Economically completing daily maintenance tasks and reducing the carbon footprint during construction is a major issue facing road maintenance and repair construction enterprises.

The "National IV Emission Standards" have been fully implemented in the field of construction machinery. As a result, Wirtgen's "Medium-sized milling machine series" : W 125/155/185 CFi has emerged. While filling the performance gap of traditional milling machine teams, it also provides an additional option for more economically completing medium-sized daily maintenance milling operations.

The W 185 CFi is the model with the widest milling width in the medium-sized milling machine series, and the standard milling drum is 1.9 meters. Compared with the 1.5-meter-wide milling drum of his sibling W 155 CFi, the wider milling width can significantly improve efficiency in applications such as surface milling and cement roughening during daily maintenance operations. This issue, Xiaowei will take you through several recent application cases

Partial maintenance of single-lane expressways

Overview of the construction site

Location: G15 Shenhai Expressway

Application: Local rapid milling and repair of permeable asphalt surface layer

Milling depth: 4 cm

Milling width: 3.75m for single lane

Highlights

The W 185 CFi medium-sized milling machine is compact in size and can be transported to the construction site with a trailer when used in conjunction with the sliding sweeper

In this way, not only is the transportation cost saved, but also the emissions of one trailer can be reduced. The milling machine can be put into operation at the construction site with oil and water in working condition.

Single-person operation, efficient milling

The actual milling speed on site is 11 m/min. This milling speed is adopted to adapt to the material cart and ensure high-quality milling texture. It can be imagined that if large milling machines are adopted, under the same restrictive conditions, their milling efficiency will also be limited to this level.

By using medium-sized milling machines at this construction site to complete the same milling work with the same efficiency, fuel consumption is greatly saved and carbon emissions are reduced. The W 185 CFi is standard-equipped with a 1.9m wide milling drum. The two blades are just enough to complete the milling of a single lane. In terms of the efficiency of milling width, it has reached the level of a 2m milling machine.

A 0.5-meter road edge safety belt was milled with a Wirtgen half-meter gear milling machine W 50H, successfully completing a "milling flash".

The smooth and aesthetically textured milled surface of W 185 CFi provides a high-quality foundation for the subsequent paving process

The municipal cement road surface was roughened during the "white to black" transformation

Overview of the construction site

Location: Municipal Road, Xinyi City, Maoming

Application: Roughening of "white-to-black" cement

Milling depth: 6mm

Highlights

The front discharge milling machine is highly suitable for the construction environment of municipal roads. The milling speed reaches 30 m/min

To accommodate the road arch in the middle of the road, the milling width on each side is 2.9 meters. This also requires two cuts to cover the milling width of half of the road. We can imagine that if a 2-meter large milling machine is adopted, in order to adapt to the road arch, the number of milling knives cannot be reduced either. From the perspectives of fuel consumption and cost, using a medium-sized milling machine is a very wise choice.

The milling drum offset on the right side and the 40 cm outward suspension make edge milling very easy to operate as well. In this construction site application, there is no need to call up another half-meter milling machine for edge milling.

The roads in the small town are winding and undulating, and W 185 CFi always handles them with ease

In a total construction period of 7.5 hours, 11,521 square meters of roughening was completed. And the fuel consumption is only 110 liters. The average hourly fuel consumption is as low as 14.7 L/h.

For such construction sites, if a 2-meter large milling machine is used and the material carts can keep up, the work can be completed slightly earlier by 1 to 1.5 hours, but the fuel consumption will roughly double. This is not only an economic saving, but also makes an outstanding contribution to energy conservation and emission reduction.

Wittgen's "Delta 18" high-performance milling drum and HT22 Plus tool holder ensure the optimal Angle and positioning of the tool. The perfect rotation of the tool head reduces resistance during operation, slows down the wear rate of the tool, and lowers the cost of milling tools.