ZF (Tianjin) Wind Power，A leading wind power gear box manufacturer in the world, purchased a shot blast machine for dual purpose of cleaning and strengthening from PEENTECH in 2014. Due to excellent performance and quality of machine, customer was very satisfied and purchased a robotic shot peening from PEENTECH in 2016. To get 95% usage from equipments, PEENTECH after sales team formulated a strict maintenance annual plan from spring to winter, this year maintenance was done successfully.