ESCO Group

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ESCO Group LLC is a manufacturer of engineered metal wear parts and components for industrial applications – including mining and construction. Since 1913, the company, which is a division of Weir Group PLC, has been headquartered in Portland, Oregon, USA, and has manufacturing sites throughout the world. The company designs and manufactures a host of products including ground engaging tools (GET) for mining, construction products, conveying, rigging, dredging and other industrial applications.

TypeDivision of Weir Group PLC
HeadquartersPortland, Oregon
Key people
Jon Owens, President
ProductsWear parts for industrial applications
ParentWeir Group


Hot metal is poured from a ladle in an ESCO Portland foundry

ESCO was founded in 1913 by Oregon businessman Charles (C.F.) Swigert as a local source of steel castings. The Electric Steel Foundry Company was founded on property once occupied by the 1905 Lewis and Clark Centennial Exposition. The foundry used an unusual modern furnace that was fired by electricity rather than coke, making it the first of its kind in the western United States.[citation needed]

During its first 30 years, ESCO was mainly a regional supplier of cast steel alloy products for the logging, construction, and pulp and paper industry throughout the Pacific Northwest. In the 1920s, the company expanded production to include cast steel alloy products like the Bardon choker hook, widely used in forestry. Further growth was sparked by the use of Hadfield manganese steel and the production of dragline excavator buckets. The ESCO trademark was first used in 1926 and eventually became the company’s new name.

ESCO survived the Great Depression primarily as a jobbing foundry, making castings for sawmills, pulp and paper mills. In 1932, ESCO opened its first stainless steel industrial service center. During the 1940s, ESCO added new products to meet demand for supply valves, pump bodies, anchor chains and other components for warships and tanks. In 1946, ESCO developed the two piece tooth system and, in 1948, the company entered the cable excavator bucket market.

Due to the growing mining and construction markets after the war, ESCO launched new products and opened additional plants, sales offices, subsidiaries and licensees, including a midwest distribution facility in Danville, Illinois and a foundry in British Columbia. The company also adopted new manufacturing, inspection and metallurgical methods.

During the 1960s and 1970s, ESCO expanded the manufacture of dragline and shovel dipper buckets and teeth. The company also launched a two-piece Conical tooth system and began using the argon oxygen decarburization (AOD) and vacuum molding processes. During the 1970s, ESCO opened an automated foundry in Newton, Mississippi and a second Canadian foundry in Ontario.

During the early 1980s, ESCO launched its Helilok pin and lock system and also acquired Gray-Syracuse and Concorde Castings—investment casting facilities serving the aerospace and power generation industries.

In 1983 ESCO bought Hyster Company, and then sold it in 1989 to NACCO Industries.

During the 1990s, ESCO expanded operations in the United States, the United Kingdom and Canada and entered a joint venture to manufacture products in China. The company also acquired Heflin Steel, producing wear liners and armor plate. ESCO also introduced the Super V tooth system.

Additional acquisitions like Quality Steel are targeted to serve the oil sands market. ESCO has also added aerospace and power generation facilities in Belgium and Slovakia and built new facilities in Mexico and Xuzhou, China. In 2008, ESCO introduced the SV2 tooth system, the Whisler Plus hammerless locking system, and the Ultralok hammerless tooth system.

In 2006 and 2008, ESCO was named among Oregon's most admired manufacturing companies, according to a Portland Business Journal survey of more than 2,000 Oregon CEOs.[citation needed] The company announced plans for an initial public offering in May 2011 that could raise as much as $175 million.[1] The company canceled plans for an IPO in May 2013.[2]

On December 28, 2012 Esco Corporation sold Turbine Technologies Group (Esco-TTG) to Consolidated Precision Products (CPP). Sale consisted of Esco TT Belgium, Esco TT Cleveland, Esco TT Mexico, Esco TT Syracuse, Slovakia Plant, Esco Tempe Machining Facility and NY’s Oriscany Steel Treaters. CPP is a portfolio company of Warburg Pincus.

ESCO announced the acquisition of Texas-based Ulterra Drilling Technologies L.P. in August 2012 in a deal estimated at $325 million.[3] In 2014, ESCO acquired another Texas-based company, Stabiltec Downhole Tools, LLC.,[4] further adding to the company's oil and gas portfolio.

On April 19, 2018 ESCO entered into an agreement to be acquired by The Weir Group PLC, one of the world’s leading engineering businesses, for an enterprise value of $1.285 billion.[5] The acquisition was completed on July 12, 2018.[6]

Plant closures and violation of U.S. trade sanction with CubaEdit

Commencing in 2013, ESCO has closed multiple manufacturing and service facilities in recent years, citing a protracted downturn and declining customer demand for their products.[7][8] In January 2013, ESCO closed the Northgate, Australia foundry they purchased in 2010.[9] In September, 2014 ESCO closed another foundry located in Guisborough, England.[7] In February 2015, ESCO announced the closure of a large foundry in Nisku, Canada.[10] ESCO laid off an estimated 25% of their manufacturing work force at their Port Hope, Canada facility in 2014[11] and made further cuts in 2015.[12] ESCO announced the closure of another foundry in Dunedin, New Zealand in September, 2015. In November 2015, ESCO announced that they would be eliminating 247 employees when closing the main production plant that adjoins the North American headquarters.[13]

In 2014, the Wall Street Journal reported that ESCO Corporation agreed to pay a $2.1 Million fine for violating U.S. sanctions imposed on Cuba.[14] In the official penalty notice, the U.S. Treasury Department concluded that ESCO acted with "reckless disregard" and "caused significant harm" to the U.S. sanctions program on Cuba by conducting large-volume and high-value transactions in products made from Cuban-origin nickel, "which were ultimately sourced" from people on the U.S. blacklist.[15][16]


This mining hoe bucket shows several GET wearparts—including shrouds, wear bars and teeth.

Ground engaging tools are the expendable replacement parts of costly mining, construction, dredging, crushing, conveying, recycling equipment such as excavators, scrapers, drag lines, shovels, dippers, graders, dozers, loaders, haulers, dredging cutter heads, backhoes and skid steers. GET protects expensive equipment from the wear and tear common in high-impact or high-abrasion environments (from hard rock mining to dredging and oil sands extraction). GET includes such wear parts as tooth systems, buckets, blades, end bits, couplers,[17] thumbs, ripper systems, lip systems, dozer packages, liner packages, shrouds, chain, chain sprockets, traction wheels, and shredder hammer components.

ESCO is a manufacturer of products for

  • Mining: surface and underground hard rock mining applications. These products include buckets, blades, end bits, couplers, wearparts, ripper systems, shanks, lip systems, dozer packages, liner packages, shrouds, and structural components. Typical equipment using wear products includes dozers, graders, excavators, draglines, shovels, dippers, loaders and haulers.
  • Highway and heavy construction: highway and heavy construction products for excavators, scrapers, graders, dozers, loaders, backhoes and skid steers. These products include tooth systems, buckets, blades, end bits, couplers, thumbs, wear parts, ripper systems, lip systems, dozer packages, liner packages, shrouds, and structural components.
  • Utilities and general construction: utility and general construction products for excavators, graders, dozers, loaders, backhoes and skid steers. These products include tooth systems, buckets, blades, end bits, couplers, thumbs, wearparts, ripper systems, lip systems, dozer packages, liner packages, shrouds, and structural components.
  • Universal Wear Products: Kwik-Lok, Dualmet wear tiles, bimetallic wear solutions, ESCOALLOY plate, chromium carbide overlay plate, structural steel plate, custom wear liners and RemNet
  • Crushing: wear parts for various aggregate, quarry and mining applications.
  • Dredging: cutter heads, wear parts and tooth systems for a variety of rock, sand and clay dredging applications.
  • Forestry: grapple and bunching heads, dual function booms, single function booms, snubbers, sorting heads and swing booms for a variety of logging and wood products manufacturing applications, including advanced crawlers and skidders.
  • Rigging: for a variety of construction, forestry, crane, shipping, marine and industrial wire rope applications. These products include rigging hardware, components, swagers, swage fitting, dies and spelter sockets.
  • Conveying: equipment components for such applications as receiving, storage, reclaiming, recovery, pulp mills, woodyards, woodrooms and power generation. These products include long link sprockets, drums, chains, flights, attachments, drag chain conveyor sprockets and traction wheels, engineered chain, mill chain and chain attachments. The company also provides shredder hammer assemblies and spare parts.
  • Recycling: various products for recycling and recovery operations. These products include hammers, grates, rotor caps, liners and other key components for various types of recycling equipment.
  • Other industrial applications: various products for other industrial applications, including military and commercial armor plating, structural shredder parts for recycling, structural components for bridges and communications towers, and alloy molds and vessels for the production of nonferrous metals.


In November 2011 ESCO and Portland neighborhood representatives signed a Good Neighbor Agreement, which includes an implementation schedule for 17 emission reduction projects over five years. As of April 2014, 12 of 16 projects are completed, and one ongoing project with no completion date. Several of the projects are related to improving or adding control devices to capture particulate matter and metal emissions. It also includes projects related to chemical substitution to reduce organic compound emissions, and projects requiring additional or modified procedures or operations to improve emission capture.[18]

Plant in Northwest Portland

"Crunching pollution numbers available on the Environmental Protection Agency (EPA) website, group member Bob Holmstrom found that the ESCO steel plant five blocks from Chapman Elementary had doubled its emissions of metals into the air from 2002 to 2007." "Though it strives to be the greenest city in America, an exhaustive USA Today study found that six of Portland's schools were in the worst percentile nationwide for air toxins. That puts Portland's school air quality on par with that of Cleveland, Ohio."[19]

"Industrial air pollution in Northwest Portland is significantly worse than in other parts of the city, and ESCO Corporation is the main reason why. That conclusion can be drawn from an eight-month study by USA Today applying U.S. Environmental Protection Agency data and modeling to public and private school locations across the country. For each of the seven Northwest schools, the No. 1 source of pollution was ESCO, which has a steel foundry near Northwest Vaughn Street on 25th Avenue and another off Northwest Yeon Avenue. The primary chemicals emitted by these foundries were ..."[20]

"... a December 2008 USA Today story, The Smokestack Effect: Toxic Air and America’s Schools, that ranked the air around Chapman and other Northwest Portland schools among the two percent most polluted in the nation. In essence, it said school children are exposed to some of America’s most unhealthy air, largely due to ESCO’s toxic fumes."[21]

"Northwest Portland activists raised the issue of manganese pollution from ESCO foundries near Chapman Elementary after a USA Today report last December that ranked Chapman among U.S. schools most at risk from industrial pollution."[22]

See alsoEdit


  1. ^ Siemers, Erik (May 2, 2011). "ESCO Corp. files for $175M IPO". Portland Business Journal. Retrieved 18 August 2012.
  2. ^ Goldfield, Robert (May 21, 2013). "ESCO scraps its IPO plans". Portland Business Journal. Retrieved 21 May 2013.
  3. ^ Siemers, Erik (August 14, 2012). "Esco to acquire Ulterra Drilling for $325M". Portland Business Journal. Retrieved 18 August 2012.
  4. ^ Giegerich, Andy. "Esco adds to oil/gas portfolio with Stabiltec purchase". Portland Business Journal. Retrieved January 3, 2014.
  5. ^
  6. ^ "ESCO Corporation acquired by Weir Group - Equipment Journal". Equipment Journal. 2018-08-07. Retrieved 2018-08-08.
  7. ^ a b Ford, Coreena. "Job losses at ESCO Corporation in Guisborough". journallive. Retrieved 2016-03-17.
  8. ^ Gallivan, Joseph (2015-11-19). "ESCO to close its main plant facility in Portland". Portland Tribune. Retrieved 2016-03-16 – via
  9. ^ "Esco shuts Northgate foundry, nearly 70 jobs lost". Australian Mining. Retrieved 2016-03-17.
  10. ^ "110 union workers to lose jobs as Esco Corp. closes Nisku foundry, blaming mining slowdown". Edmonton Journal. Retrieved 2016-03-17.
  11. ^ "ESCO lays off 33 employees in Port Hope". Northumberland Today. Retrieved 2016-03-17.
  12. ^ "Layoffs at Esco's Port Hope facility". Northumberland Today. Retrieved 2016-03-17.
  13. ^ "Esco Corp. to close NW Portland factory, lay off 247 workers". Retrieved 2016-03-17.
  14. ^ "Esco Corp. Pays $2.1 Million to Settle Sanctions Violations". 2014-11-13. Retrieved 2016-03-17.
  15. ^ "ESCO Corporation Settles Potential Civil Liability for Apparent Violations of the Cuban Assets Control Regulation" (PDF). U.S. Treasury Department. November 13, 2014. Retrieved 2016-03-16.
  16. ^ "Feds investigate Portland's Esco Corp. for violating U.S. embargo against Cuba". Retrieved 2016-03-17.
  17. ^ "Esco Couplings in Russia". Retrieved 2014-03-05.
  18. ^ "Good Neighbor Agreement" (PDF). Oregon DEQ. Oregon DEQ. Archived from the original (PDF) on 2014-05-08. Retrieved 2014-05-07.
  19. ^ Sarah Mirk (August 13, 2009). "Breathing Wheezy: Green Portland's Dirty Secret: Its Air". Portland Mercury. Retrieved 2010-10-17.
  20. ^ Allan Classen (April 2009). "Neighborhood schools under cloud of industrial air pollution" (PDF). The NW Examiner. pp. 1, 8, 13. Archived from the original (PDF) on 2011-07-14. Retrieved 2010-10-17.
  21. ^ Paul Koberstein (March 2010). "DEQ admits downplaying ESCO threat: Nearby residents may get 95 percent of air toxics from foundry" (PDF). The NW Examiner. pp. 1, 21. Archived from the original (PDF) on 2011-07-14. Retrieved 2010-10-17.
  22. ^ Scott Learn (December 10, 2009). "Oregon to review health benchmarks for mercury, manganese". The Oregonian. Retrieved 2010-10-17.

External linksEdit