Eastern Sintered Alloys (St. Marys, PA)


Powder Metal Components - Sintered Metal Parts
Cook-Leitch Inc. has proudly provided the technical sales, account development and program management role for ESA since 1984.
Engineering & Technical Support—The ESA’ Intangible!
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ESA is an engineering-driven Powder Metal company.
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We offer our customers prompt part design assistance.
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We take into account the overall assembly design and the application of the P/M component.
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ESA can offer P/M material recommendations based upon the part application.
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ESA has (4) seats of 2020 SolidWorks.
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ESA designs all Powder Metal (P/M) tooling in-house………..
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Thus, we have complete understanding of the long-term maintenance of the tooling.
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We are committed to maintain your tooling for the “life of the program".
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Speed to Market: Our Commitment to YOU!
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ESA is very responsive to customer’s RFQ demands.
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ESA offers part design and assembly design support.
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Very disciplined Advanced Product Quality Planning (APQP) system.
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Again, we understand the part application and function of our customer's assembly.
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Tool design, tool build and PPAP submission ranges from 5-weeks to 8-weeks.
Manufacturing Capabilities:
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(82) molding presses
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Tonnage range is 4 ton to 300 ton (approx. 9 sq. inches)
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- (24) sintering ovens
- High-temperature sintering
- Air-hardened sintering capabilities
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(16) sizing presses--High-speed sizing of bearings (straight-walls, flange, etc.), spacers, bushings, etc.
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Copper Infiltrating and other high-strength materials for your application.
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Warm compaction capabilities for higher strength, higher density is set-up on 75% of our molding presses.
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Note: The Powder Metal (P/M) Industry is committed to "Green Technology". See below video, "The Sustainability Continuum".

ESA's Manufacturing is Committed to Automation & Robotics:
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ESA is a leader in P/M manufacturing technology.
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ESA's 92,000 sq. ft. manufacturing facility is highly-automated.
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We have pick-n-place robotics, uniquely designed & built to smoothly transition the production of P/M parts from molding through our sintering process.
ESA's Diversity of Custom Powder Metal (P/M) Parts:
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Actuator Levers
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Armatures
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Bearings
- Straight-wall
- Flange
- Spherical
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Bushings
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Cams
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Clamps
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Compression Limiters
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Counterweights
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Gears
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Helical (19 degree)
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Sector Gears
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Compound Gears
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Pinion Gears
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Planet Gears
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Ring Gears
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Sprocket Gears
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Housings
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Hubs
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Pawls
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Pulley' Halves
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Retaining Rings
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Spacers
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Structural P/M Parts



ESA's Powder Metal (MPIF) Materials:
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High Strength Alloys
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High Density Materials
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Air-Hardened Materials
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Stainless Steel
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Bronze (90/10)
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Diluted Bronze
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High Temperature Sintering
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Copper Infiltration
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Iron Copper
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Distalloy Materials
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Iron Nickel
We will be glad to send you a copy of the MPIF material standards book for Structural P/M components and Bearing applications. Please call us at 216.870.1098 for an electronic copy.
ESA's other Services Include:
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Oil Impregnating Systems with Centrifuge Equipment
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Vibratory Finishing for Deburring
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Heat Treating
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Steam Treat
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Drilling
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Tapping
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Machining
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Sizing
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Grinding
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Plating
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Special Impregnation's for Sealing/Coatings, and Assemblies
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100% Non-Destructive Testing (NDT) via Vision and/or Resonance for safety critical Powder Metal parts.

ESA is Quality-Oriented:
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ESA is ISO9001:2015-registered. We have an excellent quality performance history.
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The key to ESA’s quality is…….
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Understanding the part application and function, and design a P/M part for manufacturability.
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Secondly, ESA has a very disciplined approach in designing high-quality, robust tools.
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ESA is diligent in our preventative maintenance of tooling—We protect our customer’s investment!!
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ESA monitors our quality throughout the molding, sintering, secondary processing (i.e. heat treat, machining, plating, etc.).
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ESA specializes in Safety Critical applications, and we have a full QA Lab, including mechanical break-testing equipment for comparative yield strength, elongation, etc.
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ESA also features a 5,000 sq. ft. Non-Destructive Testing (NDT) department—
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We can high-speed 100% inspect P/M parts via
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Auto Vision Systems
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Resonant (Sound) Inspection Systems
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Or, incorporate both NDT' 100% inspection techniques for your safety critical P/M components.
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History:
- Eastern Sintered Alloys, Inc. (ESA) was founded in 1979 by John Sterbank Sr. and Art Hildebrand.
- Today, ESA employs 300 dedicated associates, and we have a 92,000 sq. ft. facility in St. Marys, PA (Elk County).
- We are one of the largest employers in Elk County.
- Also, ESA is one of the largest privately-owned Powder Metal companies in North America.
- ESA has developed a corporate culture of "team-work" which has solidified our customer' relationships over the past 40-years.
