Industrial and Aerospace Seal Repair and Overhaul


For over 50 years the Stein Seal Company has manufactured, repaired, overhauled and redesigned seals and sealing systems for aerospace and other applications.

Stein Seal, a privately owned company, can tailor a design and service contract to meet your needs. Stein Seal is an ISO 9001:2008 certified manufacturer of seals and sealing systems with a dedicated repair department and 80 CNC machines in our production area to enhance our repair delivery capability. Support is also provided through our engineering department and test lab. When required, one of Stein Seal’s 24 test rigs can be used to verify performance at actual operating conditions. Customers are invited to witness the testing of their seal and sealing system.

Our seal rig testing capability includes:

  • Staff of 8 Technicians under the direction of Engineering
  • 15,000 Sq. Ft. (1,393 Sq. M.) of Lab Floor Space
  • 24 Dynamic Test Rigs including 2 Inter-shaft Rigs
  • Seal Diameters up to 24 inches (60 cm)
  • Maximum Shaft Speed of 70,000 rpm on seal diameter of 2.0 inches (50.8 mm) or less
  • Maximum Shaft Speed of 30,000 rpm for most other diameters
  • Maximum Oil Pressure of 4,000 psi (27,579 kPa)
  • Maximum Gas Pressure of 3,000 psi (20,684 kPa)
  • Maximum Temperature of 1,500°F (815°C)

Contact Stein Seal about Seal Repairs