Yuebian Electric Co.,Ltd
WEG Electric Corp.
The Gund Company, Inc.
Shaanxi Hanzhong Transformer Co., ltd
Orecco
Nissin Electric Co., Ltd.
Neeltran, Inc.
L/C Magnetics
JHJX Machinery Manufacturing Co.Ltd
Indcoil
Fuji Electric Corp. of America
DAIHEN Corporation

14 Oil-Filled Transformer Manufacturers in 2024

This section provides an overview for oil-filled transformers as well as their applications and principles. Also, please take a look at the list of 14 oil-filled transformer manufacturers and their company rankings. Here are the top-ranked oil-filled transformer companies as of June, 2024: 1.Neeltran, Inc., 2.The Gund Company, Inc., 3.L/C Magnetics.

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List of 14 Oil-Filled Transformer Manufacturers

*Including some distributors, etc.

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  • Company Size: largest first
  • Year Founded: oldest first
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  • United States of America
  • China
  • India
  • Japan
    • The Gund Company, Inc.
      • United States of America Address: 9333 Dielman Industrial Dr., Saint Louis, Missouri, United States of America

      Manufacturer Overview

      The Gund Company, Inc. is a manufacturer and fabricator of composite, thermoplastic, and elastomeric materials, established in 1951 and based in St. Louis, Missouri. The company offers thermosets, thermoplastics, flexibles, and resistance temperature detectors (RTDs). It is AS9100D certified and ISO 9001:2015 compliant and has laboratory and testing capabilities at 8 locations in 5 countries. With R&D engineers, the company develops materials that meet the electrical, physical, and mechanical requirements of its customers in metal processing, aerospace, automotive, power electronics, and medical industries.

    • Neeltran, Inc.
      • United States of America Address: 71 Pickett District Road, New Milford, Connecticut, United States of America

      Manufacturer Overview

      Neeltran, which stands for New Energy Transformer and Rectifiers, is headquartered in New Milford, Connecticut. The company is now a part of AMSC and is an ISO-9001-2015 certified designer and manufacturer of its own rectifier transformers and DC rectifiers to customers around the world across diverse industries including aerospace, mining, and petrochemicals. In addition to transformers and DC rectifiers, the company produces reactors and inductors, and turn-key solutions. The company also offers repair, retrofit, rewind, and remanufacturing of rectifiers and transformers.

    • L/C Magnetics
      • United States of America Address: 1139 N. Kraemer Place Anaheim, California, United States of America

      Company Overview

      L/C Magnetics is a US manufacturer and distributor of custom transformers, inductors, and current limiting reactors. It was established in 1990, serving multiple industries, including automotive, aerospace, power generation, telecommunications, and more. The company offers custom dry-type transformers and inductors with various voltage and current ratings, including replacements, buck-boost, obsolete, prototype, and specialized inductors such as high-frequency gapped and military-grade options. It also designs and produces magnetic components, such as coils, chokes, and magnetic shielding. The company has a division called CEHCO that builds DC rectifiers, transformer rectifier assemblies, and custom power supplies.

    • Fuji Electric Corp. of America
      • United States of America Address: 50 Northfield Ave, Edison, New Jersey, United States of America

      Distributor Overview

      Fuji Electric Corp. of America, originally founded in 1970 in the USA, is a distributor of products manufactured by the Fuji Electric Group throughout North America and the Americas. The company provides electric solutions for energy, industrial systems, social systems, power electronics, and electronic devices. Fuji Electric Corp. of America offers a wide range of products, such as inverters, circuit breakers, ring compressors, flow meters, and power generators. The company's systems include applications for passenger door automation systems and turbine power generation systems.

    • Nissin Electric Co., Ltd.
      • Japan Address: 47, Umezu-Takase-cho, Ukyo-ku, Kyoto, Kyoto, Japan

      Manufacturer Overview

      Nissin Electric Co., Ltd., established in Kyoto, Japan, in 1917, is a Supplier of electrical energy by substation equipment, and grid connection technology. The company provides factories and office buildings to realize the optimal operation of energy and technical support. They also provide industrial infrastructure, with an emphasis on power system and energy equipment. Their product range includes gas insulated switchgear, storage battery system, vehicle recognition system, high voltage test product and multiple environmental sensors.

    • DAIHEN Corporation
      • Japan Address: 2-1-11 Tagawa, Yodogawa-ku, Osaka, Osaka, Japan

      Manufacturer Overview

      DAIHEN Corporation, established in 1919 and headquartered in Osaka, Japan, is a manufacturer of Power Products, Industrial Robots, and RF/MW Generators & Automatic Matching Units for plasma applications. The company provides an extensive array of products, including Oil-immersed Transformer, Cast Resin Transformer suitable for high buildings, public facilities, and hospitals, Power Distribution Equipment such as closed type power distribution boards and remote monitoring systems, as well as Sensors for Robot Welding and Positioners & Sliders. The company also offers various welding & cutting machines, including TIG Welding Machines, Plasma Cutting Machines, as well as Peripheral Devices for Welding.

    • JHJX Machinery Manufacturing Co.Ltd
      • China Address: No.99 Tongzhou Road,City of Ma An Shan, Anhui, China

      Manufacturer Overview

      JHJX Machinery Manufacturing Co. Ltd. was founded in 1992 in the City of Ma An Shan, China, as a manufacturer of hydraulic torque and electric torque wrenches, bolt tensioners, and electric hydraulic pumps. The company's product portfolio comprises hydraulic torque wrenches, pneumatic torque wrenches, electric torque wrenches, hydraulic wrench pumps, and bolt tensioners. These products serve diverse industries, ensuring precise torque control in heavy-duty applications like construction and manufacturing, with wide applications from automotive to electronics assembly, and playing a crucial role in maintaining structural integrity. The company serves various industries, including metallurgy, aerospace, shipbuilding, petroleum, chemical, railway, and mining.

    • Indcoil
      • India Address: Plot A-150 / A-151, 23rd, University Rd, Wagle Estate, Mumbai, Maharashtra, India

      Manufacturer Overview

      Indcoil, founded in 1968, is an ISO 9000-certified manufacturer of instrument transformers and control transformers in Mumbai, India. The company offers different types of transformers, including cast resin, VPI, oil-filled, converter, and furnace transformers, as well as grounding/earthing, auto, inverter duty, and mounted transformers. Indcoil's products are used in steel plants, cement plants, petrochemicals, and other major industries. The company complies with IS 2026 for routine tests in all transformers manufactured and has received approval from consultants in India, such as MECON, NTPC, EIL, TCE, and DusturCo.

    • Orecco
      • China Address: Yueqing Economic Development Zone, Yueqing City, Zhejiang, China

      Manufacturer Overview

      Orecco is a professional manufacturer of electric power distribution and transmission solutions headquartered in Zhejiang Province, China. The company’s product line includes ring main units, outdoor and indoor vacuum circuit breakers, electrical distribution transformers, prefabricated compact substations, and SF6 gas-insulated substations. It operates with six member factories, advanced equipment, and a qualified team of engineers. The company’s products are developed and manufactured to meet IEC requirements and other international standards and are used in diverse applications, including power plants, substations, industrial facilities, commercial buildings, and residential areas.

    • Shaanxi Hanzhong Transformer Co., ltd
      • China Address: Chencang Road South, North Economic Development Area, Hanzhong, Shaanxi, China

      Manufacturer Overview

      Shaanxi Hanzhong Transformer Co., Ltd. was established in 1937 and is based in Hanzhong, Shaanxi, China, as a manufacturer of transformers. The product portfolio of the company comprises oil-immersed transformers, distribution transformers, rectifier transformers, furnace transformers, and dry-type transformers. The transformers serve various industries by ensuring efficient electrical power distribution, stepping down high-voltage electricity for safe use, supporting industrial processes like metal production, and guaranteeing efficient power distribution in fire-safe and low-maintenance environments. The company serves various industries, including electrical power distribution, residential and commercial buildings, metal production, electrochemical processes, and indoor industrial applications.

    • DAELIM BELEFIC Tech Co. Ltd.

      Manufacturer Overview

      DAELIM BELEFIC Tech Co. Ltd. is a manufacturer of electrical products and equipment founded in 2001 in Beijing, China. The company offers different types of transformers, including single-phase, dry-type, substation, pad-mounted, power, and furnace transformers. It also provides electrical solutions for global customers, such as mobile substations and specialized solutions for earthquake-prone areas, high altitudes, and low temperatures. It fully complies with international standards such as ISO, IEEE, IEC, CSA, AS/NZ, and GOST. It serves commercial, industrial, and residential sectors in Asia, Africa, the Middle East, Europe, America, and Australia.

    • WEG Electric Corp.

      Manufacturer Overview

      WEG, founded on 16 September 1961, is the world’s largest manufacturer of commercial and industrial electric motors, gearboxes, automation technologies, power generation equipment, and related equipment. Such products are used in the manufacturing of pumps, compressors, fans, and more. The company started with the motive of manufacturing electric motors, but soon it expanded its services to the manufacturing of electric and electronic components, industrial automation technologies, power and distribution transforms, etc. The company has been awarded various ISO certifications. Different companies, including PAUMAR, GEREMIA and 16 more, are affiliated with the WEG group.

Oil-Filled Transformer Manufacturer Ranking

*Including some distributors, etc.

Derivation Method

The ranking is calculated based on the click share within the oil-filled transformer page as of June 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.

Number of Employees

  1. Nissin Electric Co., Ltd.: 5,382
  2. DAIHEN Corporation: 3,732
  3. Yuebian Electric Co.,Ltd: 413

Newly Established Company

  1. JHJX Machinery Manufacturing Co.Ltd: 1992 (32 years ago)
  2. Fuji Electric Corp. of America: 1970 (54 years ago)
  3. Indcoil: 1968 (56 years ago)

Company with a History

  1. Shaanxi Hanzhong Transformer Co., ltd: 1937 (87 years ago)
  2. The Gund Company, Inc.: 1951 (73 years ago)
  3. Indcoil: 1968 (56 years ago)

Oil-Filled Transformer Manufacturers in United States

*Including some distributors, etc.

Global Distribution of Oil-Filled Transformer Manufacturers by Country

*Including some distributors, etc.

Country Number of Companies Share (%)
United States of America United States of America 4 33.3%
China China 4 33.3%
Japan Japan 2 16.7%
India India 2 16.7%

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