Dandong Colossus Group Co., Ltd.

Colossus Group is the biggest manufacturer of mechanical seals and heavy duty magnetic drive pumps in China. Our main products are mechanical seals and its support system, heavy duty magnetic drive pump, coupling, welded metal bellows, screw expander and precision casting, which are widely used in the industry.Technology innovation is the power for Colossus continuous development.Colossus is the first one setting up an R & D in the seal industry, which is the strongest engineers team.From 1996 to 2011, Colossus is the first one to get the certificate of ISO9002 quality system, API-Q1 , CE-ATEX , EMSC, OHMS Certification, GOST and RTN, ASME Certificate and National Pressure Vessel Certificate in this industry. The company has many advanced inspection equipment, including X-Ray flow detectors, MITUTOYO coordinate measuring instrument with 0.1um accuracy, helium mass spectrometer leak detector with accuracy higher than 1.33X10-8PaL/S, and SPECTRO direct-reading spectrometer, Handheld Spectrometer for on-site rapid identification and etc. It also has provincial level engineering technology research center set with 6 labs and 2 stations, including pump test station, screw expander test station, mechnical seal lab and etc. . The mechnical seal lab can do the seal testing with pressure over 25Mpa, temperature from 0-400 degree, max 30,000rpm and 1000 hours unattended operation testing."