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Stein Seal Industries Seal Repair

For over 65 years, Stein Seal Industries has manufactured, repaired, overhauled and redesigned seals and sealing systems for varied industrial uses. Stein Seal Industrial Division has experience in manufacturing and repairing equipment from various OEMs, including Alfa Laval, Tomoe, Bird Centrifuges, Dresser-Rand, Siemens-Energy, and others.

Stein can tailor a design and service contract to meet your needs. Stein Seal is an ISO 9001:2015-certified manufacturer of seals and sealing systems with a dedicated seal 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 25 test rigs can be used to verify performance at actual operating conditions. Customers are invited to witness the testing of their seal and sealing systems.

Our seal rig testing capability includes:

  • Staff technicians under the direction of Engineering
  • 15,000 Sq. Ft. (1,393 Sq. m.) of Lab Floor Space
  • 25 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)

Before & After Repairs

Before After
Before After
Before After
Before After


Stein Seal industrial offers full-service mechanical seal repair. Many organizations offer repair services, but very few offer the evaluation and engineering acumen that Stein can provide. Stein operates several fully staffed seal repair and service centers. Our technical and repair staff have over a hundred years of combined experience in the mechanical seal industry.

Repair Process

Upon receiving a damaged or worn-out seal, Stein repair experts thoroughly clean and inspect the mechanical Seal to assess the extent of the damage. Stein also offers on-site evaluation and investigation of seal and component failure. Once the condition has been determined and any defects or problems identified, we determine what parts need to be refurbished or replaced. We provide a complete damage report and a quote for the proposed repair.

While repair is not always the right solution, it is always wise to consider it. Stein customers who are presented with a repair option can expect to save, on average, 30% to 60% off new seal replacement costs.