We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Plating.
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Plating Product List and Ranking from 319 Manufacturers, Suppliers and Companies | IPROS GMS

Last Updated: Aggregation Period:Mar 25, 2026~Apr 21, 2026
This ranking is based on the number of page views on our site.

Plating Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Mar 25, 2026~Apr 21, 2026
This ranking is based on the number of page views on our site.

  1. エプテック Nagano//Manufacturing and processing contract
  2. シルベック 本社工場 Saitama//Other manufacturing
  3. Daiwa Fine Chemicals Co., Ltd. Hyogo//Other manufacturing
  4. 4 ウィルコ Kanagawa//Industrial Machinery
  5. 5 オテック Osaka//Ferrous/Non-ferrous metals

Plating Product ranking

Last Updated: Aggregation Period:Mar 25, 2026~Apr 21, 2026
This ranking is based on the number of page views on our site.

  1. Plating and Surface Treatment Case Study Collection *Currently available for free. エプテック
  2. Copper sulfate plating gloss agent "KOTAC 1・2" 大和特殊
  3. Room temperature zinc plating (rust prevention paint) "ROVAL" ローバル
  4. 4 Plating on fiber-reinforced plastics GFRP and CFRP. 九州電化
  5. 5 Electric gold - tin plating Dain Goal Star V Daiwa Fine Chemicals Co., Ltd.

Plating Product List

901~930 item / All 1529 items

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Pump screw plating repair

Some factories hold 200 to 300 pieces, and the dimensions vary! Hard chrome plating can also be applied for repairs and other uses!

We would like to introduce a case study for the paper industry: "Pump Screw Plating Repair." In equipment used for transporting sludge and other materials, partial wear occurred due to the intrusion of foreign objects, and repairs were difficult because there were no drawings available, making buildup and thermal spray repairs challenging. Therefore, we measured the highest point during the acceptance inspection. We determined the plating thickness and applied hard chrome plating, followed by buff polishing. 【Process】 ■ Measure the highest point during acceptance inspection ■ Strip the plating and conduct an intermediate inspection (comparison with acceptance inspection) ■ Determine the plating thickness (report existing thickness) ■ Apply hard chrome plating and finish with buff polishing *For more details, please refer to the PDF document or feel free to contact us.

  • Other machine elements
  • Plating

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Just Inc. Business Introduction

Plating, surface treatment, diamond electroplating. Just is a professional group specializing in plating.

Just Co., Ltd. has been seriously addressing the needs for all types of plating based on a tradition and track record spanning half a century since its founding, and we strive to refine our technology to meet the satisfaction of our customers. Furthermore, we are committed to breaking the status quo and embracing cutting-edge technology, working diligently to become a bridge to the next generation. For more details, please contact us or refer to our catalog.

  • Plating Equipment
  • Surface treatment contract service
  • Diamond cutter
  • Plating

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Improvement of functionality through diamond special electroplating technology and composite plating.

The diamond sizes range from #18 to #100,000.

Just Co., Ltd. contributes to the enhancement of functionality through diamond electroplating technology and composite plating. We are capable of electroplating ultra-fine diamond (0.2μm), and we can achieve high adhesion strength plating even on hard and SUS materials. Please feel free to contact us when you need our services. 【Features】 ■ Capable of electroplating ultra-fine diamond (0.2μm) ■ Uniform dispersion even for ultra-fine diameters of φ0.02-2mm ■ Single-layer and multi-layer electroplating possible ■ High adhesion strength plating even on hard and SUS materials ■ Diamond sizes range from #18 to #100,000 ■ Uniform plating thickness even on complex shapes *For more details, please refer to the PDF document or feel free to contact us.

  • Plating Equipment
  • Surface treatment contract service
  • Diamond cutter
  • Plating

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High-performance anti-corrosion coating

Refining technology to accommodate various types of plating! Introducing rust-proof plating resistant to hydrogen embrittlement.

We would like to introduce "High-Performance Anti-Corrosion Plating" handled by Just Co., Ltd. It is hexavalent chromium-free and specialized for cast products with stress resistance. We strive to satisfy all of our customers' requirements with a focus on QCD (Quality, Cost, Delivery). Additionally, we are committed to refining our technology to meet various types of plating requests. 【Features】 ■ Hexavalent chromium-free ■ No cyanide plating bath ■ Hydrogen embrittlement resistance (zinc chloride bath) ■ Stress resistance specialized for cast products *For more details, please refer to the PDF document or feel free to contact us.

  • Other Auto Parts
  • Plating Equipment
  • Plating

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Surface treatment composite plating (diamond electroplating UDC) case study of medical devices.

As a use for anti-slip, it results in almost zero loss of abrasive particles, creating a semi-permanent effect.

The use of anti-slip materials has resulted in an increased retention power of diamonds due to UDC, leading to an almost complete elimination of abrasive particle detachment and creating a semi-permanent effect. Therefore, it enhances the functionality of medical instruments and provides a semi-permanent effect. UDC, through our unique plating and surface treatment diamond special electroplating technology, enables the incorporation of carbon nanotubes into the plating solution, which enhances strength, heat dissipation, and wear resistance. 【Features】 ■ High retention power of diamonds ■ Abrasive particle detachment is nearly zero ■ Improved functionality of medical instruments ■ Creates a semi-permanent effect *For more details, please refer to the PDF document or feel free to contact us.

  • Other surface treatment equipment
  • Other cutting tools
  • Power tools
  • Plating

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Composite plating (diamond electroplating UDC) - Improved wear resistance

Improved heat dissipation! High wear resistance reduces damage from chips.

By applying our unique technology "UDC Plating," the thermal dissipation is improved due to the function of the nano carbon tubes contained in the plating solution. Additionally, it has high wear resistance, resulting in less damage from chips, and the plating becomes less likely to peel off. 【Features】 ■ High wear resistance ■ Less damage from chips ■ Plating is less likely to peel off *For more details, please refer to the PDF document or feel free to contact us.

  • Other cutting tools
  • Power tools
  • Other work tools
  • Plating

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Improvement of thermal dissipation in composite plating (diamond electroplating UDC)

The heat dissipation has improved due to the function of nanocarbon tubes! Performance lifespan has been extended and processing has also stabilized.

By applying our unique technology "UDC Plating," the thermal dissipation is improved due to the function of the nano carbon tubes contained in the plating solution. The thermal dissipation during the use of electrodeposition tools is excellent, reducing damage to the tools. As a result, the performance lifespan is extended, and processing becomes stable. 【Features】 ■ Excellent thermal dissipation during the use of electrodeposition tools ■ Reduced damage to tools ■ Extended performance lifespan and stable processing *For more details, please refer to the PDF document or feel free to contact us.

  • Other cutting tools
  • Power tools
  • Other work tools
  • Plating

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Composite plating (diamond electroplating UDC) strength enhancement

Improvement of tool strength! By applying UDC, carbon nanotubes strongly grip the abrasive particles that become cutting edges.

By applying UDC, carbon nanotubes can effectively grip abrasive grains, preventing their detachment. This enhances the strength of the tool and extends its performance lifespan. With UDC, the strength of the coating increases, preventing the abrasive grains, which act as cutting edges, from falling off, thereby improving the tool's strength and extending its performance lifespan. 【In the case of conventional electroplated tools】 - If the strength of the coating is low, it succumbs to the machining resistance of the workpiece, causing the abrasive grains that act as cutting edges to detach. - The detachment of abrasive grains leads to a decline in performance, such as reduced cutting ability. *For more details, please refer to the PDF document or feel free to contact us.

  • Other cutting tools
  • Power tools
  • Other work tools
  • Plating

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FA, diamond special electroplating technology is also used in the conveying process of factory automation.

The factory's transport process of "grabbing, gripping, holding, chucking, colleting, clamping, positioning, and fixing" is highly versatile! Numerous achievements in industrial equipment components!

Just Co., Ltd. handles a unique technology for plating and surface treatment, the diamond special electroplating technology 'UDC', which stands for "Ultimate Diamond Carbon Nanotube." This is our proprietary diamond special electroplating technology. By incorporating carbon nanotubes into the plating solution, it becomes possible to impart functions such as "increased strength," "improved heat dissipation," and "enhanced wear resistance." The diamond special electroplating technology is also used in medical devices, and its high wear resistance and anti-slip effects are perfect for factory transport processes! There are numerous achievements in industrial equipment and components as well! Features: ■ High retention power of diamonds ■ Creates a semi-permanent effect Additionally, our company can perform various plating treatments beyond diamond electroplating. For more details, please refer to the middle section of this page or visit our company website. *For more information, please refer to the PDF materials or feel free to contact us.

  • Plating Equipment
  • Processing Contract
  • Plating

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For extending the lifespan of tools and improving the functionality of medical devices! Diamond special electroplating.

Achieving the long lifespan of parts and tools! By using diamond special electroplating, we can dramatically enhance the functionality of tools and medical instruments.

Just Corporation's unique technology for plating and surface treatment, the diamond special electroplating technology 'UDC', stands for "Ultimate Diamond Carbon Nanotube" and is our proprietary diamond special electroplating technology. By incorporating carbon nanotubes into the plating solution, it becomes possible to impart functions such as "increased strength," "improved heat dissipation," and "enhanced wear resistance." The diamond special electroplating technology is also used in medical devices, and its high wear resistance and anti-slip effects are perfect for factory transportation processes! There are numerous achievements in industrial equipment and components as well! Features: ■ High retention of diamonds ■ Creates a semi-permanent effect In addition, we offer various plating treatments besides diamond special electroplating. For more details, please refer to the middle section of this page or visit our company website. *For more information, please refer to the PDF materials or feel free to contact us.

  • Plating Equipment
  • Processing Contract
  • Plating

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Plated products: resin plating, gold plating, chrome plating.

The largest large-scale facility in the Kanto region is under complete computer control with a 24-hour system.

This equipment can accommodate a maximum work size of W2300mm × D300mm × H1200mm. To maintain high quality and meet advanced quality requirements, we conduct thorough quality control using scanning electron microscopes (SEM) and fluorescent X-ray thickness measurement devices. For products approximately 300mm square, we can process up to 8,000 pieces per day. Gold plating has a soft surface film, but it can be applied to complex shapes and has a beautiful luster. Chrome plating (trivalent and hexavalent) has a hard surface film and maintains a stable luster over a long period. For more details, please contact us or refer to our catalog.

  • Surface treatment contract service
  • Plating

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Proposal for Cost Reduction through Zinc-Nickel Alloy Plating by Takamura Industrial Co., Ltd.

We propose cost reduction from the overall perspective of product manufacturing costs using surface treatment.

We aim to create competitive products by reducing total manufacturing costs without compromising current specifications. We will eliminate the disadvantages of existing materials and surface treatments. With zinc-nickel alloy plating, the processing temperature is around 20°C, which eliminates the risk of deformation due to heat in thin sheet products. Since it is electroplating, there is no sagging of the plating film, ensuring a uniform coating. Due to its thin film, gauge quality is high, and thickness can be managed widely from 3 to 12 μm to match specifications and products. We achieve short lead times equivalent to zinc plating, and masking is unnecessary. The thin film also stabilizes gauge quality, demonstrating high corrosion resistance across the entire product perimeter, and by including 15% nickel, surface hardness is increased. It maintains strength even under repeated fitting. We recommend using inexpensive steel plates as the material. Dramatic cost reductions are achieved with zinc-nickel alloy plating!! Using steel plates improves workability and increases productivity!! For more details, please contact us or refer to the catalog.

  • Surface treatment contract service
  • others
  • Plating

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Leave it to us for zinc-nickel alloy plating.

We have our own automated line! We can deliver stable quality even with mass production.

At Takamura Industrial Co., Ltd., we perform surface treatment for various plating processes, including zinc plating, copper plating, and bright nickel plating. By incorporating 15% nickel, we have increased surface hardness and maintained strength. Additionally, due to the thin film, we can achieve high gauge quality. Furthermore, we have an automatic line for zinc-nickel alloy plating, enabling mass production with delivery times comparable to zinc plating. 【Features】 ■ High nickel content with excellent corrosion resistance ■ Capable of prototype to mass production in static baths ■ Uniform thin film with high quality ■ No deformation due to heat even in thin sheet products ■ Increased surface hardness and maintained strength by incorporating 15% nickel *For more details, please refer to the PDF document or feel free to contact us.

  • Plating Equipment
  • Surface treatment contract service
  • Other surface treatment equipment
  • Plating

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Plating with few pinholes and high adhesion.

The gaps between metal particles are small, making it difficult for pinholes to form! A plating with strong adhesion.

"Plating with few pinholes and high adhesion" is a technology of Todenka Co., Ltd., which specializes in hoop plating and plating processing. Our various platings, represented by Ni plating, generate very fine metal particles that precipitate onto the metal of the product material. As a result, the meticulously plated surface has few gaps between the metal particles, making it difficult to form pinholes. This condition allows the plating to penetrate into the minute irregularities of the material surface, resulting in a very strong adhesion. Similarly, Sn plating achieves excellent solder wetting properties. *For more details, please refer to the catalog or feel free to contact us.*

  • Plating Equipment
  • Other surface treatment equipment
  • Surface treatment contract service
  • Plating

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Technical Introduction: Chrome Plating

Chrome plating has a beautiful appearance, is resistant to discoloration, and can significantly improve wear resistance and corrosion resistance. ISO 9001 and ISO 14001 certified.

Chrome plating has a beautiful appearance, is resistant to discoloration, and can significantly improve the wear resistance and corrosion resistance of the material. Our company uses plating automatic machines designed for plating treatment of stainless steel and nickel alloys, which are difficult to plate. The process includes cleaning, acid electrolysis, nickel strike, and nickel plating, followed by chrome plating, gold plating, and black nickel plating, all processed with fully automatic and semi-automatic plating equipment, allowing us to provide stable quality at low cost to our customers. Of course, plating is possible on austenitic stainless steels represented by SUS304 and SUS316, as well as ferritic stainless steels like SUS430. Please consult us regarding material specifications. For more details, please contact us or refer to our catalog. For any surface treatment needs, from precious metal plating to industrial plating, powder coating, and electrodeposition coating, feel free to consult us.

  • Surface treatment contract service
  • Plating

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Technical Introduction: Black Nickel Plating

It is a heavy, glossy nickel and tin alloy plating in a dark gray color.

Black nickel plating is used for decorative plating on items such as glasses and for anti-reflective (anti-glare) coatings on optical components, as well as for base plating under finishes like antique colors. It achieves a uniform blackness even on complex shapes and is cost-effective, making it suitable for various products such as decorative items and writing instruments. While black dyeing can only be applied to materials like iron and stainless steel, black nickel plating can be applied to any material that can be plated, including not only iron and stainless steel but also copper alloys, titanium, and aluminum, without material restrictions. For more details, please contact us or refer to our catalog.

  • Surface treatment contract service
  • Plating

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Plating for dissimilar metal bonding

It is a plating for brazing different metals such as titanium and stainless steel, superelastic alloys, and copper alloys. Of course, no special equipment or technology is required.

If you apply nickel plating to the material you want to solder, it will allow for easy soldering using standard soldering equipment, as it will be nickel soldering. This nickel plating must be heat-resistant and should allow silver solder to flow easily. Regular shiny nickel plating can become hard and crack under temperatures as high as 1000°C due to the effects of the shiny material during soldering. Of course, even with metals that are difficult to plate or bond, such as titanium, superelastic materials, and stainless steel, proper pre-treatment for each material can result in good adhesion of the plating.

  • Special Steel
  • Welding Machine
  • Rare metals
  • Plating

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Kondo Plating Industry Co., Ltd. Introduction of Technology

This is an introduction to barrel plating, jig plating, and mesh chrome plating.

The characteristics of "barrel nickel plating technology and manufacturing method" include uniform film thickness and excellent mass production capability. It can accommodate various thickness requirements without a lid on the barrel. It can handle anything from generally large to small items and is compatible with various materials such as iron, brass, and stainless steel. The features of "hanging (static) plating technology" excel in thick plating and are suitable for hole-containing and irregularly shaped products. With a five-layer system of semi-gloss + gloss + trivalent + seal + microporous + chrome, it is possible to process brass (copper) with one hanger and one power source. Additionally, we introduce "plating technology for extremely small products such as precision screws" and "barrel copper plating technology and manufacturing method." For more details, please contact us or refer to our catalog.

  • Surface treatment contract service
  • Plating

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Hard chrome plating

Original jig design and hard chrome plating (hard chrome plating) utilizing polishing and masking techniques.

~Properties of Plating Coatings~ ○ Hardness (HV800-1000) ○ Wear resistance ○ Release properties ○ Corrosion resistance (stable corrosion resistance against chemicals excluding chlorides) ○ Build-up properties

  • Printing Machinery
  • Plating

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What YMC can do

Flexible due to manual work! Quick response for small lots of various types/single items!

Our company responds to difficult materials, film thickness tolerances, surface roughness, masking, build-up corrections, etc. with creative thinking. As a company that handles toxic and hazardous substances, we promise various environmental considerations and high quality in plating solution composition management. We can provide quality assurance for invisible parts that cannot be judged solely by appearance. Please feel free to consult us when you need our services. 【Features】 ■ Capable of handling a wide variety of products, allowing for flexible process design - Able to meet various quality requirements ■ Stable productivity and analysis technology for plating solutions - Can analyze and manage plating solutions in-house ■ Technology for analyzing plating films to assess functionality - Capable of surface observation and various testing *For more details, please refer to the related links or feel free to contact us.

  • Printing Machinery
  • Processing Contract
  • Plating

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Plating process chemicals for MID (Molded Interconnect Devices)

MID process chemicals with reliable selectivity (copper, nickel, tin, silver, gold finishes available)

Japan McDermid proposes a new MID plating process that offers high yield and reliable selectivity, making it ideal for plating LDS, Pd-containing resins, and double-shot MID. This process provides stable selectivity across a wide range of materials and catalysts, enabling more complex and efficient designs for the most needed low-cost molded composites. Additionally, the simple and manageable process results in stable plating rates and a long, predictable bath life.

  • Other electronic parts
  • Electrical equipment parts
  • Chemicals
  • Plating

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ZinKlad - High-Performance Coating System

A high-performance coating system that does not contain hexavalent chromium and complies with the most stringent automotive standards.

Release from hexavalent chromium! ZinKlad is a unique and high-performance plating group developed at MacDermid that meets the most stringent corrosion resistance specifications in today's manufacturing industry without containing hexavalent chromium compounds. ZinKlad represents the best technology adapted to the ELV regulations issued by European countries in response to increasing environmental concerns. Under this new law, major automotive manufacturers worldwide have expressed their intention to limit or prohibit the use of hexavalent chromium in surface treatments and chemical conversion coatings. ZinKlad is supplied through a global network of Approved Applicators, which are audited by MacDermid and handle the most advanced plating and chemical treatments. ZinKlad plating is a zinc-based plating, topcoat, and lubricant developed to enhance corrosion resistance, heat resistance, and achieve controlled torque tightening.

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Melted aluminum coating method "Alumer"

Exhibits excellent corrosion resistance even in marine environments or areas exposed to saltwater and seawater.

When thermal stimulus energy is applied to a material, atoms move within the material. This is due to the force that works to eliminate concentration gradients within solids and approach equilibrium. Based on this theory, the idea of coating steel with aluminum has been around for a long time, but the molten aluminum coating method was established in the United States in the 1930s. Research in this area had also been conducted in our country since before the war, but Shinko Aluma Co., Ltd. succeeded in establishing and commercializing the coating technology in 1953, and has continued to work on research and improvements to this day. The molten aluminum coating method of Shinko Aluma has been trademarked as "Alumer," and today it is commonly referred to by this name. For more details, please contact us or refer to our catalog.

  • aluminum
  • Piping Materials
  • Surface treatment contract service
  • Plating

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Galvalume 55: Zinc coating with 55% added aluminum.

Although the film thickness is thin, it has about 20 times the corrosion resistance of molten Zn plating.

Galvalume 55 refers to a 55% Al-Zn coating that has 55% aluminum added to improve the corrosion resistance of hot-dip galvanized (zinc-coated) materials. It exhibits extremely excellent corrosion resistance. The reason for this is the high corrosion resistance of the composite corrosion products of aluminum and zinc, as well as the sacrificial corrosion protection effect of zinc, which dissolves to protect iron from rust. It has 5 to 20 times the corrosion resistance of hot-dip zinc coatings. It is optimal for fasteners in roads, civil engineering, construction, railways, power, telecommunications, and chemical plants, particularly against salt damage, de-icing agents, and acid rain. For more details, please contact us or refer to the catalog.

  • Surface treatment contract service
  • Plating

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Aluminum plating

Reduction of life cycle costs is possible! High durability and long lifespan even in environments with salt damage, high temperatures, and hydrogen sulfide.

"Aluminum plating" is a coating made of 100% aluminum. It offers high durability and long life even in environments with salt damage, high temperatures, and hydrogen sulfide. Corrosion does not progress even in damaged areas of the plating, allowing for a reduction in life cycle costs. 【Features】 ■ 100% aluminum plating ■ High durability and long life even in environments with salt damage, high temperatures, and hydrogen sulfide ■ Reduction in life cycle costs is possible ■ Corrosion does not progress in damaged areas of the plating ■ Over 30 years of corrosion protection for offshore oil storage pier steel materials *For more details, please refer to the PDF document or feel free to contact us.

  • aluminum
  • Piping Materials
  • Plating

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Products handled: Plating processing

We handle gold plating, silver plating, nickel plating, tin plating, and more.

Hashinaga Metal Co., Ltd. Product Handling In plating processing, we handle gold plating, silver plating, nickel plating, tin plating, tin reflow plating, and anodizing. Hashinaga Metal Co., Ltd. has contributed to improving the environmental performance of our major clients, including automobile and electronic component manufacturers, through products that leverage the characteristics of non-ferrous metal materials and processed parts. Moving forward, we will continue to listen to the voices (needs) of everyone in our customers' development, manufacturing, quality, and purchasing departments, and provide unique products and services (seeds) that fuse the technological capabilities of competitive material manufacturers with those of processing manufacturers that possess one-of-a-kind technology. We believe that our ability to accumulate over 70 years of history in the non-ferrous metal material industry is entirely due to the trust we have built with our valued customers, suppliers, partner companies, and employees. We will continue to respond to the trust, safety, and expectations of all stakeholders with a spirit of co-creation and mutual prosperity. For more details, please contact us or refer to our catalog.

  • Surface treatment contract service
  • Processing Contract
  • Plating

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Efforts toward sustainability

Creating sustainable value by "making" and "protecting." Introducing the initiatives of Kamiya Riken.

We would like to introduce Kamiyama Riken's efforts towards sustainability. Our business, which involves plating and surface treatment, contributes to resource conservation by extending product lifespans and helps protect the environment by purifying the water and air discharged from factories. The very act of conducting our business is linked to environmental protection activities. By applying plating and surface treatment to our customers' products, we aim to enhance product value and indirectly contribute to the realization of a sustainable society. 【Kamiyama Riken's Initiatives (Partial)】 ■ Commitment to Manufacturing - Providing product services that address environmental issues - Waste management - Water management - Chemical substance management - Quality and environmental management system *For more details, please refer to the related links or feel free to contact us.

  • others
  • Plating

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[Case Study on Surface Treatment] Challenges in Hardness and Corrosion Resistance

Adoption of surface treatment suitable for complaint handling! Establishing a system to stably supply plating treatment as requested.

The customer's request was for a "hard surface treatment that can withstand harsh environments." Our company proposed "hard chrome plating," which boasts exceptional hardness among plating treatments. Since welding is performed in a later process, it was necessary to leave certain areas unplated, requiring specialized equipment. Therefore, we simultaneously developed and installed dedicated jigs, masking methods, and a dedicated line, successfully establishing a system to stably supply the requested plating treatment. [Case Overview] ■ Request: Hard surface treatment that can withstand harsh environments ■ Solution: - Proposed "hard chrome plating," which boasts exceptional hardness among plating treatments - Simultaneously developed and installed dedicated jigs, masking methods, and a dedicated line *For more details, please refer to the related links or feel free to contact us.

  • Plating Equipment
  • Plating

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[Development Case] Examination of Hard Silver Plating Coating for Electric Vehicles

This is an example of creating hard silver plating test pieces with different hardness by adjusting the plating solution composition!

Hard silver plating is used for electric vehicle charging contact terminals and other applications due to its excellent wear resistance and high electrical conductivity. With the spread of electric vehicles, the demand for hard silver plating is expected to increase further. To propose suitable plating coatings for the demands of various fields, we are adjusting the plating solution composition. We are producing hard silver plating test pieces with varying hardness and progressing with the evaluation of film thickness and hardness. [Our Role] - Preparation of samples, including the building of the plating bath for test hard silver plating and plating onto test pieces. - Outsourcing Vickers hardness testing and film thickness measurement. *For more details, please refer to the PDF document or feel free to contact us.

  • Surface treatment contract service
  • Plating

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