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We Are Providers of Seals and Sealing Systems
Proven By History
Since 1955, Stein Seal Company has been a leading provider of custom designed seals and precision components for use in a wide variety of aerospace, marine and industrial applications. Starting in a rented space with five employees, Stein Seal steadily grew into the recognized industry leader we are today. In 1987, we moved into our own modern manufacturing plant, and with building additions over the years, now have over 100,000 square feet in this highly specialized facility.
As a privately owned company, we have remained focused on our long-term growth strategy regardless of economic and market fluctuations. With over 200 employees and manufacturing facilities strategically located both inside and out of the United States, Stein Seal, along with its affiliated companies, is ideally positioned to provide design, development, sales and service worldwide.
Stein Seal’s expertise lies in the design, testing and manufacture of seals and precision components for the demanding and critical applications in military and commercial aircraft engines, power generation equipment, pumps, compressors, centrifuges, and both the military and commercial marine industry. Surpassing our customers’ expectations by setting the highest standards for design proficiency and originality, constantly investigating new materials and processes, and refining our ability to manufacture to rigorous tolerances have made us the premier supplier of seals and specialty machined components.
Company History Timeline
| Date | Event |
|---|---|
| 1955 | Stein Seal Company founded by Dr. Philip C. Stein in Philadelphia, Pennsylvania |
| 1955 | Worlds first mainshaft circumferential seal assembly (three ring configuration) designed and manufactured to replace labyrinth for an aerospace gas turbine |
| 1956 | Worlds first mainshaft circumferential seal assembly (single ring configuration) designed and manufactured as an enhancement over the three ring design |
| 1959 | U.S. Patent received for the Circumferential Segmented Contacting Seal Design invented by Dr. Philip C. Stein |
| 1960 | Bissinger & Stein established to manufacture parts for Stein Seal Company |
| 1961 | Designed and Manufactured the Nuclear Reactor Control Rods and Seals for the NS Savannah, the World’s First Nuclear Powered Commercial Ship |
| 1962 | Purchased 20th and Indiana facility in Philadelphia, Pennsylvania as Stein Seal Company grew. |
| 1963 | First commercial nuclear reactor cooling pump with seals designed and manufactured by Stein Seal Company to replace less efficient “canned” pumps |
| 1965 | First Quality Assurance Manual written |
| 1966 | First Gas Turbine Metal Segmented Static Seal designed and manufactured |
| 1966 | Stein Seal Company chosen by General Electric to design and manufacture aerospace gas turbine mainshaft seals for the Boeing Supersonic Transport (SST) |
| 1967 | Purchased our first NC (Numerically Controlled) machine |
| 1967 | First Bellows Seal manufactured |
| 1968 | First Hydrodynamic Liquid Face Seal Assembly designed and manufactured for industrial application |
| 1973 | Design and sale of the first Stein Seal Company Pipe Tester |
| 1974 | First Hydrodynamic Gas Face Seal Assembly designed and manufactured for industrial application |
| 1977 | Manufactured and sold Stein Seal Company’s first Service Rig truck for the oil and gas industry |
| 1977 | First sale in Japan to Tomoe |
| 1978 | U.S. Patent Received for Hydroload Seal design. |
| 1980 | Engineering moves from Philadelphia to King of Prussia, Pennsylvania as Stein Seal Company grows |
| 1981 | First computer used at Stein Seal Company for seal designing |
| 1982 | Philip Stein Jr. becomes President of Bissinger & Stein Inc. |
| 1984 | Chosen by Pratt and Whitney to design and manufacture the mainshaft seals for the F119 aerospace gas turbine |
| 1985 | First use of CMM (Coordinate Measuring Machine) |
| 1986 | First sale to Garrett (now Honeywell) for turbine engines |
| 1986 | Stein Seal Company consolidates most of its operations from Philadelphia and King of Prussia to new location in Kulpsville, Pennsylvania |
| 1987 | Stein Seal Company’s first display booth at the Turbo Show in Houston, Texas |
| 1989 | Philip Stein Jr. becomes President of Stein Seal Company |
| 1991 | Long term Preferred Supplier contract signed with Allison (now Rolls Royce) for Turbine engine seals |
| 1991 | First use of CAD (Computer Aided Drawings) program at Stein Seal Company |
| 1992 | Stein Seal Company won the contract to become the long term supplier of seals for the CF34-3 aerospace gas turbine |
| 1993 | Designed and built the first intershaft seal rig for testing aerospace gas turbine seal designs at Stein Seal Company. |
| 1994 | Hydrogen Cooled Generator seal development started |
| 1996 | First certified to ISO-9001 |
| 1996 | Built addition to the facility to double our company’s capacity |
| 1997 | Test Lab moved from Philadelphia to Kulpsville, Pennsylvania increasing Test Lab area by 50% |
| 1998 | Small Lot Manufacturing cell established in manufacturing |
| 1999 | U.S. Patent received for the Hydrovent Seal design |
| 1999 | Stein Seal Company receives approval for an FAA Repair Station |
| 2000 | Stein Seal Company’s first display booth at a world class air show, Farnborough, England |
| 2000 | First Carbon Manufacturing Cell established |
| 2001 | Mexico facility established in Merida as Seal and Metal Products of Latin America |
| 2001 | First flight of the F-119 using Stein Seal Company mainshaft seals |
| 2002 | European Sales Office established in Surrey, England as Stein Seal UK Ltd. |
| 2002 | First Hydrogen Cooled Generator Seal Assembly put into service |
| 2004 | First dual spindle mill turn center put in service |
| 2005 | Developed and built a full scale 2250 psid Hydrostatic Seal test cell |
| 2006 | First Metal Manufacturing Cell established |
| 2007 | Chosen by General Electric to design and manufacture the mainshaft seals for the GenX™ gas turbine engine |
| 2008 | India facility established in Bangalore as Stein Seal Company (India) Pvt.Ltd. |
| 2009 | Developed the first Hydrodynamic Circumferencial Seal for large axial translations |
| 2010 | Selected by Rolls-Royce for the development of the Trent XWB mainshaft seals |
| 2010 | Stein Seal Company purchased a building in near by Telford, Pennsylvania to expand its operations as growth continues |
| 2011 | Stein Seal Company earns Nadcap certificate for Welding |
| 2012 | Stein Seal Company establishes subsidiary, Stein Seal Industrial Division, as an industrial seal repair center |
| 2012 | Expansion of plant in Mexico by 45,000 Square Feet |
| 2013 | Constructed 2nd test set-up for Dynamically Testing Nuclear Circulating Pump Seals at 2,000 PSI |
| 2014 | Finished renovation of Kulpsville plant |
| 2014 | Installed new Grob 5 Axis Mil-Turn center |
| 2015 | Stein Seal Celebrates 60th Anniversary |
| 2015 | Dedicated 10th Metallic Machining Cell at Kulpsville |
| 2015 | Aerospace Seal Repair Station becomes EASA Certified |
| 2016 | Installed second Grob 5 Axis Mil-Turn Center |
| 2016 | Exploring 3D Printing for aerospace parts |
| 2016 | Began installation of new Enterprise Resource Planning system |
Phone:
+1 215-256-0201
Business Hours:
8:30am-6:00p M-F
Locations:
1500 Industrial Boulevard | Kulpsville, PA 19443-0316
Email:
Email: sales@steinseal.com
+1 215-256-0201
Stein Seal Company
P.O. Box 316
1500 Industrial Blvd.
Kulpsville, PA 19443-0316 U.S.A.