With over 60 years combined experience in the industrial brush and sweeping machine industry, Smith Challenger Manufacturing & Services, Inc. utilizes the original quick-change brush system on the SCM 100 and SCM 400, which allows a brush to be changed in less than 5 minutes (approx.) on site. Keith Smith, engineered and patented the innovative system that has created a paradigm shift for the industrial sweeping industry. Our sweepers are vigorous time and money savers due to our innovation and heavy duty construction – no other sweepers on the market compare.