IQR (Industrial Quality Recycling) was founded in 1979 by Thomas and Jill Karlström and is today run by their son, Daniel Karlström. From the start, the business concept was to take care of worn-out railway sleepers, but by the late 1990s, the FlexHammerTM 1800 crushing plant was developed, followed by the mobile version FlexHammerTM 1500 in 2006. The machines, mainly used at IQR’s own sites where it crushed waste materials for various customers, were continuously developed to optimize operations. A significant change in strategy took place in 2011 when the contracting business was sold and IQR decided to increase its focus on the development, manufacture and sale of crushing machines.