KALLER® is the world-leading brand for Gas Springs and Gas Hydraulic Systems for stamping dies and counterbalance, as well as Gas Hydraulic Suspension systems for heavy-duty off-road vehicles. The company behind KALLER is Strömsholmen, in the small community Tranås in Sweden. The company is a business of Barnes Group Inc. (NYSE:B), located in the U.S. Since 1983 we have developed and refined the gas spring technology, but we have been in the business since 1876 – for many years as a world-leader, with an export share of 95 percent.