The two companies invested by Chuwa Bussan Co. Ltd.---Tianhe Mechanical Equipment Manufacturing Co., Ltd., mainly manufacture the large-scale shield machines used in tunnel construction, and Rizhao Gangda Shipbuilding Heavy Industry Co., Ltd., mainly manufacture the operation vessels for port-engineering projects.
Tianhe Mechanical Equipment Manufacturing Co., Ltd., invested by Chuwa Bussan Co., Ltd., located in China, manufactures large-scale shield machines based on Sino-Japanese technical cooperation. Chuwa Bussan supplies its products for countries such as China, Japan and those in Southeast Asia.
The main products are tunnel boring machine (shield machine), large-scale grab dredger (longer than18m), large-scale steel structure, ship anchor winch, towing winch and shockproof parts for the bridge
16 patented inventions for the annual production capacity of 40 shield machines (with maximum diameter of 16 meters), and large-scale steel structure of 50,000 tons; 4 utility model patents with departments of installation, maintenance and after-sale service forshield machine; providing the services of on-the-spot installation, handling, overhauling , construction; and after-sale servicesuch as technological consultation and training service, etc..
There are 120 engineering technicians and managerial personnel and 700 workers on the regular payroll at present. Covering an area of 150,000 square meters, it has a dry dock of 30,000 tons, with equipment and facilities such as ship building berth, hoist and hydraulic flat cars.
It mainly manufactures the bulk cargo carrier, roll on/roll off ship, container ship, refrigerator ship, sand dredger at the port, oil field stand-by vessel, crane barge, port operation ship, etc. of 30,000 tons or less. It can shoulder the pull-in repair or modification of passenger liners, bulk cargo carrier, container ship, ore carrier and various engineering ships of 200,000 tons or less. The annual building capacity is 10 ships of 30,000 tons or less and the annual repair capacity is 20 ships of 200,000 tons or less.