WIRTGEN cold milling machines deliver outstanding performance at Kuala Lumpur International Airport
Airport projects of this magnitude generally require high-performance, heavy-duty machines. Nippon Road has been carrying out demanding work of this kind for many years. Ir Wan Zainuddin Wan Omar, general manager of Nippon Road and also KUL project manager, reports: “I always insist on maximum machine productivity, reliable service, and uncompromising quality – and that’s exactly what Wirtgen consistently delivers.”
Based on the company’s past positive experience, they therefore opted for innovative cold milling machines from Wirtgen, pavers from Vögele, and rollers from Hamm for this project as well. The large-scale removal of asphalt from the runway was carried out by a fleet of Wirtgen milling machines designed for high performance and consisting of both tried-and-tested and state-of-the-art technology: several large milling machines with a milling width of 2.0 m – two W 195s, one W 205, two W 1900s – as well as a W 1000 compact milling machine with a milling width of 1.0 m. With a total output of around 3,000 PS (2,200 kW), the machines then met the challenge – the area to be milled extended over a length of approximately 4,000 meters and a width of 60 meters; and the company needed to remove 44,000 m³ asphalt in total.
Due to the much higher load in the central area of the runway caused by the weight of the landing aircraft, Nippon Road’s milling experts defined two areas, each with a different milling depth. The first area encompassed the central corridor measuring 18 meters wide, and the contractor decided on a milling depth of 25 cm for this section, which was continuously milled in two passes – first at a depth of 10 cm, then at a depth of 15 cm. The two outer strips of the runway, each 21.0 meters wide, formed the second area – here, the company removed a 7.5 cm thick asphalt layer in a single pass.