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Quenching Product List and Ranking from 38 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Dec 24, 2025～Jan 20, 2026
This ranking is based on the number of page views on our site.

Quenching Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Dec 24, 2025～Jan 20, 2026
This ranking is based on the number of page views on our site.

  1. 富士高周波工業 Osaka//Manufacturing and processing contract
  2. 富士電子工業 Osaka//Industrial Machinery
  3. 遠州熱研 Shizuoka//Manufacturing and processing contract
  4. アイテック Gifu//Machine elements and parts
  5. 5 大洋金属工業 Kanagawa//Manufacturing and processing contract
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Quenching Product ranking

Last Updated： Aggregation Period:Dec 24, 2025～Jan 20, 2026
This ranking is based on the number of page views on our site.

  1. [Processing Technology] Flame Hardening (Frame Hard) 遠州熱研
  2. Toyo High Frequency Industrial Co., Ltd. Company Profile 東洋高周波工業
  3. Shaft machining examples 富士高周波工業
  4. High-frequency hardening 大洋金属工業
  5. 4 Why heat treatment is necessary - 2 富士電子工業

Quenching Product List

136～150 item / All 156 items

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【Processing Technology】Glowing Quenching

【Processing Technology】Glowing Quenching

Prevents oxidation and decarbonization, and can protect luster! It also leads to a reduction in post-processing such as shot blasting.

"Radiant Hardening" is a hardening method that finishes with the surface maintaining a metallic luster. By processing in a non-oxidizing atmosphere, it prevents oxidation and decarburization, allowing for the protection of the radiant quality. This also leads to a reduction in subsequent processes such as shot blasting. Please feel free to contact us when you need our services. 【Features】 ■ A hardening method that finishes with the surface maintaining a metallic luster ■ Prevents oxidation and decarburization ■ Can protect the radiant quality ■ Leads to a reduction in subsequent processes such as shot blasting ■ JIS processing symbol: HQB *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract

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[Processing Technology] Carburizing Quenching and Carburizing Nitriding Quenching

[Processing Technology] Carburizing Quenching and Carburizing Nitriding Quenching

It is widely applied to various machine parts, including automotive parts and marine parts!

"Carburizing hardening" is a treatment that allows carbon to penetrate and diffuse from the surface of a metal, hardening only the surface. The surface becomes hard and wear-resistant, while the interior maintains lower hardness, providing high toughness and improved fatigue resistance. "Carburizing nitriding" is a treatment that allows both carbon and nitrogen to penetrate and diffuse into the surface of steel, hardening only the surface layer. This improves wear resistance. 【Features】 ■ Carburizing hardening - The surface becomes hard and wear-resistant - The interior maintains lower hardness, providing high toughness - Fatigue resistance can also be improved ■ Carburizing nitriding - A treatment that hardens only the surface layer - Wear resistance is improved *For more details, please refer to the PDF document or feel free to contact us.

  • Other surface treatment equipment

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[Processing Technology] Flame Hardening (Frame Hard)

[Processing Technology] Flame Hardening (Frame Hard)

Partial hardening of small parts! It is possible to have a hard surface with high wear resistance and a tough core!

"Flame hardening" is a process that involves heating the surface of steel with a high-temperature flame, followed by quenching to harden the surface layer. Using a torch, the steel is heated partially and then rapidly cooled. This process allows for a hard surface layer with high wear resistance and a tough core, resulting in significant residual compressive stress on the surface, which improves fatigue strength. It is suitable for partial hardening of small items (approximately Φ30 or smaller). 【Features】 ■ A process that heats the surface of steel with a high-temperature flame and then hardens the surface layer. ■ Capable of producing a hard surface layer with high wear resistance and a tough core. ■ The generation of significant residual compressive stress on the surface improves fatigue strength. ■ Suitable for partial hardening of small items (approximately Φ30 or smaller). ■ JIS processing symbol: HQF *For more details, please refer to the PDF document or feel free to contact us.

  • Other surface treatment equipment

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Mikawa Electric Wave Industry Co., Ltd.

Mikawa Electric Wave Industry Co., Ltd.

Leave metal heat treatment, including high-frequency hardening and distortion correction, to us.

Our company was founded in 1967 and specializes in high-frequency hardening, adhering to the motto of "high quality, short delivery times, and low cost." Among the various metal heat treatment processes, we have deepened our collaboration with specialized contractors over the years for overall hardening methods such as vacuum, carburizing, and salt hardening, as well as nitriding treatments like tuftriding and gas softening, and annealing shots. We are equipped to meet any needs related to heat treatment in general. ■ Dedicated to "High-Frequency Hardening" We handle products of special sizes, complex shapes, and even thin plate products that tend to warp significantly when heated—items that may be deemed unacceptable or for which we might receive refusals from others. We address these high-difficulty products with our own coils and the skilled techniques of our artisans. ■ Confident in Our Skills "Warp Correction" With over half a century of experience and achievements, we take pride in our ability to correct warping caused by hardening to a level of 0.1mm, skillfully manipulating pressing and heat as part of our high technical capabilities. ■ We Deliver "Short Delivery Times" Our ability to provide a consistent service from hardening and tempering to warp correction allows us to deliver on the same day as drop-off in the shortest possible time. We strive to meet our customers' deadlines to the fullest extent.

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  • Processing Contract

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Screw Strengthening Manual (Vol. 41) Sometimes it can be partially hardened!

Screw Strengthening Manual (Vol. 41) Sometimes it can be partially hardened!

Introducing a method to heat only the surface of materials that can be hardened, in a blog format!

This time, I will talk about high-frequency hardening. It is a heat treatment method where a copper wire coil, called a high-frequency coil, is wrapped around a product that you want to harden, and heat is applied by passing an electric current to harden only the surface. While one might think that general heat treatments like quenching or annealing would suffice for hardening, there are valid reasons for choosing high-frequency hardening. *For more detailed content, you can view it through the related links. Please feel free to contact us for more information.*

  • Other consumables

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To suppress distortion and increase surface hardness, nitriding hardening is used.

To suppress distortion and increase surface hardness, nitriding hardening is used.

Compared to carbonization, deformation and dimensional changes are minimal!

- It is possible to achieve a surface hardness of 800 HV or higher even with low carbon steel. - The amount of gas used is about 1/10 of that for gas nitriding. - There is a high resistance to temper softening. - The finish is better compared to carburizing and similar processes. - Corrosion resistance is better than that of carburizing.

  • Processing Contract

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[Latest Edition] Laser Hardening Case Studies

[Latest Edition] Laser Hardening Case Studies

This is a collection of laser hardening case studies that addresses various projects with top-class domestic facilities. Collections of past case studies Volumes 1 to 30, as well as case studies by processing type, are also available!

We will introduce examples of laser hardening that prevent distortion and cracking, making it possible to harden precision parts and complex-shaped components. 【Example Lineup】 ■ Laser hardening of chuck jaws ■ Laser hardening of large tapered rolls ■ Laser hardening of truck plate tips ■ Laser hardening of small holders ■ Laser hardening of M2 rack gears ■ Laser hardening of thin-walled V-rings ■ Laser hardening of indexing pins ■ Laser hardening of spiral bevel gear tooth surfaces ■ Laser hardening of thin-walled cam plates ■ Laser hardening of φ600 mold inner diameters

  • Processing Contract

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[Metal Heat Treatment Guide] What is Quenching?

[Metal Heat Treatment Guide] What is Quenching?

Heat treatment that changes the state of martensitic structure! A method used when forging Japanese swords!

"Quenching" is a heat treatment process that involves heating steel to an austenitic structure and then rapidly cooling it in water or oil, transforming it into a martensitic structure. Depending on the cooling medium, it is referred to as water quenching or oil quenching, and it is also a method used in the forging of Japanese swords. This process is performed to increase the hardness of the steel, but it reduces toughness, so it is common to perform tempering after quenching to achieve ductility. 【What is Quenching】 ■ A process that changes the state of steel from an austenitic structure to a martensitic structure by heating it and then rapidly cooling it in water or oil. ■ A method used in the forging of Japanese swords. ■ The quenching effect cannot be expected unless the carbon content is 0.3% or higher. *For more details, please refer to the PDF document or feel free to contact us.

  • Heating device

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Leave it to Daiwa Seiko Co., Ltd., with years of trust and proven results.

Leave it to Daiwa Seiko Co., Ltd., with years of trust and proven results.

If you have requested heat treatment and distortion correction from another company and are not getting the results you expected, please feel free to consult with us!

Our company has a long-standing reputation and track record, particularly in the quenching of HSS (high-speed tool steel), where we have achieved significant results. If you are facing issues such as inability to achieve quenching hardness, excessive distortion making processing difficult, or frequent cracking, or if you want to extend the lifespan of your molds, experience significant changes over time after heat treatment, or cannot meet specified hardness, please feel free to consult with us. Additionally, if you are currently outsourcing heat treatment and distortion correction to other companies and are not getting the desired results, please reach out to us. [For concerns like these] ■ Inability to achieve quenching hardness ■ Excessive distortion making processing difficult ■ Frequent cracking ■ Wanting to extend the lifespan of molds ■ Significant changes over time after heat treatment ■ Not meeting specified hardness *For more details, please download the PDF or feel free to contact us.

  • Processing Contract

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Colette Double Tempering

Colette Double Tempering

The lower back has low hardness, while the clamp section has high hardness, allowing for hardening not only on the surface but also throughout the center!

At Yamato Seiko Co., Ltd., we perform two-stage hardening of collets. The waist section is hardened to a low hardness, while the clamping section is hardened to a high hardness, allowing hardening not only on the surface but also throughout the center. The two-stage hardening of collets is only available when combined with parts processing and heat treatment processing. Please feel free to consult us when you need our services. 【Business Activities】 ■ Design and manufacturing of precision tools ■ Manufacturing of various industrial equipment parts (including discontinued parts for food and packaging manufacturing equipment) ■ Heat treatment processing (requests for heat treatment processing only are also possible) *For more details, please download the PDF or feel free to contact us.

  • Chuck
  • Processing Contract

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Netsuren Komatsu Co., Ltd.

Netsuren Komatsu Co., Ltd.

Stronger and more flexible - Fine Heat Technology - A top manufacturer of high-frequency surface hardening. This is the Hokuriku base of the Netsuren Group.

Netsuren Komatsu Co., Ltd. is a leading manufacturer of high-frequency surface hardening, providing stronger and more flexible products. Our main products include heat treatment for a wide range of components such as swing wheels, sprockets, idlers for construction machinery, shafts, connecting rods, spindles, gears for machine tools, hubs, bearings for automobiles, and push rods for internal combustion engines. Our core technologies include large gear one-shot hardening with an output of 600 kW, one-tooth movement hardening for medium and large gears, constant and low distortion hardening for automotive parts, and continuous automatic hardening for shaft-type components.

  • others

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Wahong Precision Co., Ltd.

Wahong Precision Co., Ltd.

We prioritize quality, delivery time, and cost, aiming to be a company that competes at the micron level in heat treatment.

Wahong Precision Co., Ltd. is a company that prioritizes quality, delivery, and cost, aiming for precise heat treatment at the micron level. We handle parts in a wide range of fields, including construction machinery, machine tools, automobiles, and textile machinery, and we specialize in processes such as gas carburizing hardening, gas carburizing nitriding hardening, non-oxidizing hardening, material tempering, annealing, carbon removal treatment, cleaning treatment, distortion correction, and shot blasting treatment. Our strength lies in having obtained ISO 9001:2015 certification and having many employees with heat treatment technician qualifications.

  • others

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The composition and structure of spring steel, the changes in strength due to carbon content, and the importance of quenching.

The composition and structure of spring steel, the changes in strength due to carbon content, and the importance of quenching.

[Reproduction of Private Spring Preparatory School Lecture 53] Study of heat treatment that creates spring hardness! Explanation of carbon that strengthens steel.

I plan to study the heat treatment that creates spring hardness. That said, since there are new students, let's also study the structure beforehand. Pure iron is surprisingly soft, so it is not useful in the machinery industry. However, if you add a tiny amount of carbon to this iron, it becomes something very useful called carbon steel. The amount of carbon increases in the order of mild steel, medium carbon steel, hard steel, and ultra-hard steel, with the carbon steel for springs (SUP3 and 4) belonging to the ultra-hard steel category. Even in this ultra-hard steel, the carbon content is only about 1.5%. I apologize for the repetition, but let's take another look at the JIS spring steel material table here. *For detailed content of the article, you can view it in the PDF. For more information, please feel free to contact us.*

  • Spring

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[Case Study] Increase Hardness of S55C!

[Case Study] Increase Hardness of S55C!

Proposal for Ensuring Hardness! Introduction of Case Studies on Increasing Hardness by Changing to Heat Treatment "Salt Quenching"

This is a case study that succeeded in extending the lifespan by changing the heat treatment method of S55C to "salt quenching." [Consultation Details] The S55C shaft was being hardened using vacuum oil quenching, but hardness could not be secured. [Solution Case] We proposed changing to salt quenching, which has good heat transfer, and upon performing the quenching, we were able to secure the hardness. Additionally, the salt quenching eliminated uneven hardening and resulted in a fine hardened structure, contributing to the extended lifespan of the product.

  • Other surface treatment equipment

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[Case Study] Successful Reduction of Distortion in the Quenching of Leaf Springs!

[Case Study] Successful Reduction of Distortion in the Quenching of Leaf Springs!

We propose a processing method with minimal distortion! Introduction of case studies on distortion reduction through the change to heat treatment "salt quenching."

This is an introduction to a case where changing the heat treatment of leaf springs to "salt quenching" successfully reduced distortion. 【Consultation Details】 We want to perform quenching on leaf springs that cannot be corrected for distortion, aiming for minimal distortion. 【Solution Case】 We proposed changing the quenching method from oil quenching to the less-distorting "salt quenching." We succeeded in reducing the distortion after quenching.

  • Other surface treatment equipment

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