| Construction engineering vehicles|
Donovan Werner, Stig Giertz-Hedström, Ivar Strömberg
Planers, pavers, vibratory road rollers
Atlas Copco, Metso, Altor Equity Partners
Dynapac Partners' Stock Holding Association, Vibratechniques S.N.C., Dynapac Compaction Equipment AB
Dynapac is a Swedish multinational engineering subsidiary company, and a world leader for mobile compactors for road surfaces.
It was founded in 1934 as AB Vibro-Betong in Stockholm. In 1936 the vibratory compactor was developed by a mechanical engineer Hilding Svenson. In 1940 the company name changed to AB Vibro-Verken.
In 1947 it launched the first vibratory plate compactor, which weighed 1.5 tonnes, being nicknamed the frog. It opened its research laboratory in 1948 and manufactured the first vibratory road roller in 1953. The site in Karlskrona opened in 1960, which made heavy rollers and had the company's technical centre. The CA 25 road roller introduced in 1970 became the world's leading compaction roller. It changed its name to Dynapac Maskin AB in 1973; at this moment the company rapidly expanded its product range. Its main product range was vibratory road rollers. In 1980 it brought out its first planer.
A manufacturing facility and offices were opened in Stanhope New Jersey at 20 Continental Drive under the name of Dynapac Manufacturing Incorporated. It was a state of the art campus with numerous buildings and even a tennis court for employees. Various rollers and "light equipment" were manufactured here until the plant closed in 1987. Corporate offices were then relocated to Hackettstown and manufacturing was moved out of New Jersey. The facility in Stanhope remained abandoned for over 20 years. Some equipment and machinery were left behind and remained virtually untouched before being bought by a cardboard box manufacturer in the early 2000s. The buildings suffered from negligence during this time and underwent significant changes subsequent to being bought. The main manufacturing building remains, however, of all the outbuildings that were once here, only the machine shop and paint building remain. The office building still remains empty with the exception of being used periodically by security guards while the facility was abandoned.
It bought Salco of Sweden in 1978, and Vibratechniques of France in 1979. It bought the road roller manufacturer Watanabe of Japan in 1981. It bought the asphalt paver manufacturer Demag Schrader of Germany in 1995.
It was bought by Skånska Cement AB in 1964, which changed its name in 1973 to Industri AB Euroc. Svedala Industri AB bought the company in 1991, and Metso of Finland bought Svedala in 2001.
In April 2004, Metso sold Dynapac to the Nordic private equity investor Altor.
The company was bought by Atlas Copco (of Sweden) on 31 May 2007, whereupon the former Chief Executive Ronald Kok (1991-2007) became a board member of the Road Construction Equipment Division.
In January 2017, it was announced that France's Fayat Group was to buy Dynapac from Atlas Copco. The deal was to be completed during the second quarter of 2017 and remained to be approved by competition authorities. Fayat is since 2005 the owner of BOMAG, a direct competitor to Dynapac.
It is situated in Karlskrona in Sweden off Lyckebyvägen. Its main sites are Karlskrona and Wardenburg in Germany. Previously it was headquartered at Hjälmaregatan 3 in Malmö when owned by Svedala Industri, and Saldovägen 20 in Järfälla.
Half of its revenue comes from Europe. It has sales in over 115 countries.Wardenburg, Germany
It produces mobile equipment for the road construction industry.