Dandong Colossus Group Co., Ltd.
Verified listingDandong Colossus Group Co., Ltd., founded in 1988, is the largest designer, manufacturer, and supplier of mechanical seals and magnetic drive pumps in China. Headquartered in Dandong, Liaoning Province, the company operates across a 230,000 square meter campus with approximately 1,100 employees in five specialized factories: Mechanical Seals, Pump, Coupling, Precision Casting, and Screw Expander divisions. Colossus holds API Q1, ASME, ISO, CE-ATEX, and multiple other international certifications. Annual production capacity includes 300,000 sets of mechanical seals, 5,000 pumps, and 40,000 couplings. Products serve petroleum, petrochemical, chemical, metallurgy, pharmaceutical, and power industries, exported to over 30 countries with clients including Sulzer, Ebara, and Sinopec.
Product lines
Manufacturing & Fabrication
No product family confirmed yet. Browse Manufacturing & Fabrication
Pressure Vessels
No product family confirmed yet. Browse Pressure Vessels
Locations
| Site | Type |
|---|---|
Headquarters & Manufacturing - DandongNo. 18 Huanghai Street, Dandong, Liaoning, 118008, China | Headquarters |
Shanghai Sales OfficeRoom 504, Building #1, 2966 Jinke Rd, Shanghai, Shanghai, 201203, ChinaOffers All product lines | Sales office |
Service area
Service area not yet confirmed by the company.
Certifications
Dandong, China
| API Q1 | Q1-3699 | Verified |
Company-wide (no site given)
| ASME U Stamp | — | Company claim — not verified against the issuer |
| ISO 9001 | — | Company claim — not verified against the issuer |
| ATEX | — | Company claim — not verified against the issuer |
| GOST | — | Company claim — not verified against the issuer |
| National Pressure Vessel Certificate | — | Company claim — not verified against the issuer |
Verified: matched to API’s Composite List.
Contacts
Contact details are available to members. Create a free account to view them.