Skip to main content

Wirtgen’s ‘maximum milling’ HT22 quick-change toolholder system

Wirtgen’s HT22 quick-change toolholder system is said to ensure maximum milling performance and cost -fficient operation. A longer service life and fewer downtimes are achieved through various HT22 features, such as the significantly enlarged contact areas between the upper and lower parts of the toolholder system. Consequently, the high cutting forces are reliably transferred to the lower part of the system, substantially increasing the useful life of the milling drum. A larger shank cross-section a
April 2, 2014 Read time: 2 mins
The optimised shank geometry of the upper part of the quick-change toolholder system is extremely strong and provides greater resistance to undesired deformation
2395 Wirtgen’s HT22 quick-change toolholder system is said to ensure maximum milling performance and cost -fficient operation.

A longer service life and fewer downtimes are achieved through various HT22 features, such as the significantly enlarged contact areas between the upper and lower parts of the toolholder system.

Consequently, the high cutting forces are reliably transferred to the lower part of the system, substantially increasing the useful life of the milling drum. A larger shank Cross-section and the optimised shank geometry increase the strength of the shank, thus providing greater resistance to undesired deformation. The maximum longitudinal wear of the upper part of the toolholder is also double that of the conventional version. Service intervals have now been extended from 250 hours to 500 hours thanks to the HT22 quick-change toolhandler system's more robust construction.

All new Wirtgen cold milling machines have been equipped with the new HT22 quick-change toolholder system since October 2013. Machines put into service earlier can easily be retrofitted with the new system, providing customers with the Ideal tools for future milling jobs.

For more information on companies in this article

Related Content

  • Wirtgen exhibiting diverse machine range at bauma China
    January 6, 2017
    The Wirtgen Group is exhibiting a wide range of its latest machines for the local market at bauma China 2014 in Shanghai. The firm is showing 11 innovations and no fewer than 13 products manufactured locally at the Langfang factory for the Chinese market, from its Road and Mineral Technologies divisions. There are 38 exhibits in total from the Wirtgen Group’s Wirtgen, Vögele, Hamm and Kleemann brands that are tailored to meet Chinese requirements. The Wirtgen brand is exhibiting its powerful WR 250 reclaim
  • Manufacturers have developed key innovations in recycling machines
    March 4, 2015
    Manufacturers are making advances in stabiliser/reclaimers and milling machines - Mike Woof reports. The market for milling equipment is a competitive one, with a range of companies from around the globe now offering machines for this segment: BOMAG, Caterpillar, Dynapac, Roadtec, Volvo CE and Wirtgen. In recent years a number of Chinese firms have entered this segment and determining the number of machines these companies manufacture is difficult, although most of their units are sold in China. But interna
  • Productive milling on Japanese highway
    February 27, 2019
    A large milling machine from Wirtgen has been used to remove the top two asphalt layers of a key route in Japan in the city of Mito, around 140km north-east of Tokyo
  • Wirtgen milling machines and soil stabilisers land in Sardina
    July 26, 2016
    Wirtgen cold milling machines recently demonstrated their ability on runway rehabilitation work at Alghero-Fertilia Airport in Sardinia. Alghero-Fertilia Airport, about 8km northwest of Alghero, is one of three commercial airports on the Italian island. Built as a military airport in the late 1930s, Alghero-Fertilia still occasionally serves this purpose today. It is also a major hub for low-cost carriers that ferry many of the annual 1.7 million passengers who pass through the airport. Summer tourist mo