{"id":"mk-cn-prostepper","name":"Changzhou Prostepper Co., Ltd.","name_local":"unknown","entity_type":"factory","country":"CN","region":"Jiangsu","city":"Changzhou","address":"B2, Hutang Industrial Park, Hutang Town, Wujin District, Changzhou, Jiangsu Province, China","website":"https://www.prostepper.com/","processes":["motor-winding","gears"],"processes_basis":"derived","specialty":"Changzhou maker of stepper, DC stepper, BLDC and gearbox stepper motors with custom variants.","capabilities":"Stepper motors, BLDC motors, gearbox stepper motors; yearly output 1,500,000 sets (stated).","parts_made":["stepper motors","BLDC motors","gearbox stepper motors"],"materials":"unknown","tolerance":"unknown","max_part_size":"unknown","certifications":["ISO 9001 (2016)","CE","RoHS"],"volume":{"moq":"unknown","prototype_ok":"unknown","low_volume_evidence":"unknown","startup_friendly":"unknown"},"lead_time":{"quote":"unknown","prototype":"unknown","production":"unknown"},"size":{"employees":"unknown","floor_area":"12,000 m² factory","founded":"2014 (motor history from 1998)","band":"unknown"},"english":"yes","instant_quote":"no","known_customers":"unknown","platforms":[],"contact_public":{"email":"dingl@prostepper.com","phone":"86-0519-88386555","source":"https://www.prostepper.com/about-us/"},"community":[],"doubt":"Catalog motor maker; custom winding/low-volume terms not stated. News section last updated 2019.","sources":[{"url":"https://www.prostepper.com/","what":"products, factory area"},{"url":"https://www.prostepper.com/about-us/","what":"founded, ISO, contact"}],"confidence":"VERIFIED","verification":"desk-research","as_of":"2026-10-30"}