Established in Taichung, Taiwan in 1956, Tong Cheng Iron Works Co., Ltd. has been manufacturing SWAN Air Compressors for more than 65 years. We are capable of designing, molding, processing and assembling in-house, and also provide ODM and OEM service. With our ISO 9001:2015 certification, our customers are guaranteed to receive quality machines and services. SWAN Air Compressors have been sold to over 100 countries until now and that number is still growing. The overseas subsidiaries are located in Thailand, Vietnam and Indonesia, with distributors all around the world. Regular seminars and training courses are held regularly to refresh product knowledge and share new developments, ensuring superior services to customers.