Despite the increasing traffic load，However, many countries plan to continue to reduce investment in road network maintenance.。So，They are eager to find a fast way to reduce the risk factors of road driving.、An economical solution。Fine milling construction is the ideal choice.。It is mainly used for choking bag.、Sections with rutted or smooth pavement that pose a serious threat to traffic safety。

The finish milling process is an improved cold milling process.，The only difference between the two is that the cutting tools on the finishing drum are denser.、The spacing is smaller。When the knife spacing is reduced to 8 mm Or even younger.，This technique is called finish milling.，The goal is to achieve a defined new pavement texture.。Although finish-milling a rotor cannot repair a damaged section deep into the road structure,，But it can build a flat、A non-slip surface。

   Cutter spacing 6x2 mm Super precision milling rotor，With 672 rotary cutting tools

The finish milling rotor can mill out the fine texture of the road surface.，Give the road a good grip。So that that mil surface and the slurry seal layer can be fully combine。

The fine milling construction ensures the leveling accuracy and grip of the milled pavement。

Overseas application case examples

Case 1：

   Airport runway：Cambridge International Airport, England，The Wirtgen cold planer is working on the airport runway.

Case 2

   Remove the reticle：Complete multiple milling construction tasks with high quality through fine milling application，For example，A small milling machine removes old road markings.

Case 3

Located in Assen, the Netherlands (Assen) Yes TT The track is one of the leading motorcycle tracks in Europe.。Entrusted party GMS Fahrbahnsanierungen GmbH The track repair company uses a cab equipped with an operator and FCS Repair operation is carried out on the Wittgen large cold milling machine of the ultra-precision milling drum.。

   Track repair：For AsenTTTrack gives good grip

The total length of the track is 4..5 km，It can be watched by 100,000 spectators.，It is the only world championship track designed for motorcycles.。After years of competition，Near the start and finish lines of the track, 3. - 8 mm High undulations，In this way，When the driver brakes before the corner，The motorcycle will shake.，Become difficult to control。This poses a serious safety risk to drivers.，Therefore, it is necessary to 3.,000 m² Polish the track within the scope of.，To restore the slip resistance of the surfaces。

Ultra-precision Milling Restores the Road Condition of the Track

This is the classic application situation of ultra-precision milling.。As an expert in the field，GMS Once again, the proven technology from market leader Wirtgen was chosen。Ultra-precision milling can eliminate road deformation，Give the track a flat and uniform surface。

GMS Construction Site Manager Ernst Kugel Explain：“We chose to use the Wirtgen large cold planer and FCS LA 6x2 Super finish milling drum——The standard milling drum is usually equipped with 168 cutting tools.，This ultra-precision milling drum is equipped with 672 cutting tools.。”Different from standard milling drum，Cutter spacing of ultra-precision milling drum is less than 6 mm，Thereby being capable of producing a very fine road surface texture.，Maximum milling depth is 3 cm。

   Wirtgen large cold milling machine according to the specific requirements of 3-6 m/minFast working speed、Reliably complete the starting point/Finish line grinding

FCS Great flexibility for

Wirtgen milling and planing rotor quick-change system (FCS) Flexible switching between milling drums with different tool spacing or working width，To meet the needs of different applications.。Just a few steps，The milling drum can be replaced conveniently and quickly。Just as GMS General manager Torsten Meyer As indicated，This function brings significant advantages to the construction，It is also the key to ensure the efficient operation of large milling machines.。He said：“We attach great importance to improving the flexibility of machine use.，Thereby increasing cost-effectiveness.。”

Asen TT The restoration of the track is a perfect example.。GMS Multi-point sensing leveling system is also used in the construction。The system combines multiple sensors mounted on one or both sides of the machine（Uch as a cable、Ultrasonic and hydraulic cylinder sensors），So that that longitudinal unevenness can be measure more comprehensively，Ideal for ultra-precision milling operations。Based on the average measurement of each sensor，The system can calculate the milling depth very accurately in real time.，O as to effectively trim the longitudinal unevenness.，Ensure high-precision leveling。To this，Construction Site Manager Kugel Naturally, he was very happy。He said：“The pavement quality is very good.；We didn't find any residual irregularities.。”

All in all，Quality equipment、Innovative technology and the hard work of every team member are indispensable.，To restore the grip of the motorcycle track.。“We were able to complete the repair work without seriously affecting the race schedule.。”Construction Site Manager Kugel Very satisfied with this project。

Wei has something to say

Fine milling has been applied in many fields both at home and abroad.，And the effect of fine milling，The synthesis depends on the performance of the equipment equipped with the finish-milling rotor，Stability and reliability of leveling system，As well as the synergistic effect of cutting technology of milling tools.。And this is the milling expert.——Wirtgen's area of expertise，If you need more information，Welcome to consult the local agent of Wittgen in China.，Professional product staff will provide you with more targeted advice.。（Click the picture to view the successful application cases in the past in China.）