iPROS Manufacturing
  • Search for products by classification category

    • Electronic Components and Modules
      Electronic Components and Modules
      59228items
    • Machinery Parts
      Machinery Parts
      74848items
    • Manufacturing and processing machinery
      Manufacturing and processing machinery
      99651items
    • Scientific and Physics Equipment
      Scientific and Physics Equipment
      34782items
    • Materials
      Materials
      37075items
    • Measurement and Analysis
      Measurement and Analysis
      54771items
    • Image Processing
      Image Processing
      15046items
    • Control and Electrical Equipment
      Control and Electrical Equipment
      53168items
    • Tools, consumables, and supplies
      Tools, consumables, and supplies
      64357items
    • Design and production support
      Design and production support
      12478items
    • IT/Network
      IT/Network
      43496items
    • Office
      Office
      13768items
    • Business support services
      Business support services
      33222items
    • Seminars and Skill Development
      Seminars and Skill Development
      6303items
    • Pharmaceutical and food related
      Pharmaceutical and food related
      30152items
    • others
      73544items
  • Search for companies by industry

    • Manufacturing and processing contract
      7337
    • others
      4993
    • Industrial Machinery
      4417
    • Machine elements and parts
      3284
    • Other manufacturing
      2890
    • IT/Telecommunications
      2550
    • Trading company/Wholesale
      2469
    • Industrial Electrical Equipment
      2297
    • Building materials, supplies and fixtures
      1810
    • software
      1633
    • Electronic Components and Semiconductors
      1569
    • Resin/Plastic
      1491
    • Service Industry
      1446
    • Testing, Analysis and Measurement
      1128
    • Ferrous/Non-ferrous metals
      983
    • environment
      699
    • Chemical
      629
    • Automobiles and Transportation Equipment
      563
    • Printing Industry
      508
    • Information and Communications
      455
    • Consumer Electronics
      416
    • Energy
      327
    • Rubber products
      313
    • Food Machinery
      307
    • Optical Instruments
      277
    • robot
      271
    • fiber
      250
    • Paper and pulp
      232
    • Electricity, Gas and Water Industry
      169
    • Pharmaceuticals and Biotechnology
      167
    • Warehousing and transport related industries
      145
    • Glass and clay products
      141
    • Food and Beverage
      129
    • CAD/CAM
      125
    • retail
      109
    • Educational and Research Institutions
      105
    • Medical Devices
      103
    • Ceramics
      98
    • wood
      88
    • Transportation
      84
    • Medical and Welfare
      63
    • Petroleum and coal products
      62
    • Shipbuilding and heavy machinery
      51
    • Aviation & Aerospace
      48
    • Fisheries, Agriculture and Forestry
      42
    • Public interest/special/independent administrative agency
      31
    • equipment
      30
    • self-employed
      24
    • Research and development equipment and devices
      24
    • Government
      23
    • Materials
      22
    • Mining
      17
    • Finance, securities and insurance
      13
    • cosmetics
      11
    • Individual
      10
    • Restaurants and accommodations
      9
    • Police, Fire Department, Self-Defense Forces
      7
    • Raw materials for reagents and chemicals
      3
    • Laboratory Equipment and Consumables
      3
    • Contracted research
      3
  • Special Features
  • Ranking

    • Overall Products Ranking
    • Overall Company Ranking
Search for Products
  • Search for products by classification category

  • Electronic Components and Modules
  • Machinery Parts
  • Manufacturing and processing machinery
  • Scientific and Physics Equipment
  • Materials
  • Measurement and Analysis
  • Image Processing
  • Control and Electrical Equipment
  • Tools, consumables, and supplies
  • Design and production support
  • IT/Network
  • Office
  • Business support services
  • Seminars and Skill Development
  • Pharmaceutical and food related
  • others
Search for Companies
  • Search for companies by industry

  • Manufacturing and processing contract
  • others
  • Industrial Machinery
  • Machine elements and parts
  • Other manufacturing
  • IT/Telecommunications
  • Trading company/Wholesale
  • Industrial Electrical Equipment
  • Building materials, supplies and fixtures
  • software
  • Electronic Components and Semiconductors
  • Resin/Plastic
  • Service Industry
  • Testing, Analysis and Measurement
  • Ferrous/Non-ferrous metals
  • environment
  • Chemical
  • Automobiles and Transportation Equipment
  • Printing Industry
  • Information and Communications
  • Consumer Electronics
  • Energy
  • Rubber products
  • Food Machinery
  • Optical Instruments
  • robot
  • fiber
  • Paper and pulp
  • Electricity, Gas and Water Industry
  • Pharmaceuticals and Biotechnology
  • Warehousing and transport related industries
  • Glass and clay products
  • Food and Beverage
  • CAD/CAM
  • retail
  • Educational and Research Institutions
  • Medical Devices
  • Ceramics
  • wood
  • Transportation
  • Medical and Welfare
  • Petroleum and coal products
  • Shipbuilding and heavy machinery
  • Aviation & Aerospace
  • Fisheries, Agriculture and Forestry
  • Public interest/special/independent administrative agency
  • equipment
  • self-employed
  • Research and development equipment and devices
  • Government
  • Materials
  • Mining
  • Finance, securities and insurance
  • cosmetics
  • Individual
  • Restaurants and accommodations
  • Police, Fire Department, Self-Defense Forces
  • Raw materials for reagents and chemicals
  • Laboratory Equipment and Consumables
  • Contracted research
Special Features
Ranking
  • Overall Products Ranking
  • Overall Company Ranking
  • privacy policy
  • terms of service
  • About Us
  • Careers
  • Advertising
  1. Home
  2. Industrial Machinery
  3. ハマイ 営業本部
  4. Product/Service List
Industrial Machinery
  • Added to bookmarks

    Bookmarks list

    Bookmark has been removed

    Bookmarks list

    You can't add any more bookmarks

    By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

    Free membership registration

ハマイ 営業本部

EstablishmentFebruary 1, 1927
capital39500Ten thousand
number of employees314
addressTokyo/Shinagawa/7-7-7 Nishigotanda, SG Square 2F
phone03-3492-6655
  • Special site
  • Official site
last updated:Jul 15, 2025
ハマイlogo
  • Contact this company

    Inquiry Form
  • Before making an inquiry

    Download Profile
  • Company information
  • Products/Services(97)
  • catalog(25)
  • news(1)

ハマイ Product Lineup

  • category

1~10 item / All 10 items

Displayed results

Filter by category

Brass ball valve Brass ball valve
Stainless steel ball valve Stainless steel ball valve
Ball valve for LP gas Ball valve for LP gas
Custom-made product (relief valve) Custom-made product (relief valve)
Automatic ball valve Automatic ball valve
Lockable ball valve Lockable ball valve
Oil-free ball valve Oil-free ball valve
[Materials] Useful Materials [Materials] Useful Materials
<用途別>医療用配管向け <用途別>医療用配管向け
<用途別>純水・水処理装置向け <用途別>純水・水処理装置向け
<用途別>産業用装置 <用途別>産業用装置
<用途別>車両・建設機械 <用途別>車両・建設機械
<用途別>工場配管・プラント向け <用途別>工場配管・プラント向け
<用途別>塗装装置向け <用途別>塗装装置向け
[Materials]

[Materials] Useful Materials

We have published case studies, selection methods, and information on ball valves.

Are you ready? Regarding compliance with the positive list system.

The end of the transitional period is approaching! Introducing ball valves that use materials compliant with the positive list system.

The transitional measures for the positive list will end at the end of May 2025, so those who are not prepared need to take urgent action. This positive list system applies to synthetic resins. Ball valves are no exception, and if you are using resin valves or resin materials in ball seats, action is required. Our oil-free ball valves use materials that comply with the positive list system. We produce a substantial quantity and have them in stock, so they are readily available. Additionally, since they are produced domestically, we have solid traceability and can accommodate a wide range of document issuance requests. Various documents can be issued according to your needs. ● Main documents that can be issued: - Oil-free treatment certificate - Product inspection report - Material certificate (mill sheet) *Can be provided for each part upon request. - Non-applicability certificate (item-by-item comparison table) - RoHS directive substance non-containment certificate We will also respond to document issuance requests based on other requirements.

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Case Studies of Ball Valve Improvements [Handle Change]

We will solve the problems your company faces with custom ball valves. If you have concerns about the handle, please feel free to consult us.

This document introduces examples of improvements in custom-made products related to handles. Ball valves are widely used in factories and equipment, but are you forcing the use of incompatible existing products? Don't give up just because you've been using them without issues; for the sake of efficiency and productivity improvement, we recommend custom ball valves that are optimal for your company's environment. At Hamai, we manufacture custom ball valves. In addition to the handles in this document, we can also accommodate custom requests for the main body, resin materials, and even fully bespoke designs. For those who think custom products are expensive or require a high minimum order quantity, we offer flexibility unique to domestic production, allowing for small lot sizes. [Examples of Document Content] ■ Space Constraints ■ Clean Environments ■ Flow Management ■ Safety Measures

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

For those who are unable to handle document processing or are troubled by slow responses: prompt document issuance.

Because it's produced domestically, we respond quickly! For customers who absolutely need document issuance. We will also respond quickly to various surveys and documents.

Since it is domestically produced, we have a solid traceability system in place and can accommodate a wide range of document issuance requests. Various documents can be issued according to your needs. ● Main documents that can be issued: - Product inspection report - Material certificate (mill sheet) * Can be provided for each component upon request. - Non-applicability certificate (item comparison table) - RoHS directive substance non-containment certificate - Oil-free treatment certificate - Other content investigations We will also respond to document issuance requests based on other requirements.

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

[Presentation of Materials] Basic Knowledge and Selection Guide for Oil-Free Processing

Publication of the necessity of oil prohibition treatment, basic knowledge, and case studies!

A ball valve from Hamai that boasts complete oil-free operation. This is a basic knowledge document explaining the reasons why oil-free operation is necessary for valve manufacturers. [Contents] - Industries and case studies where it is used - Explanation of general oil-free products - Issues arising from the use of non-oil-free products

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Prevent accidents caused by damage or leaks due to vibrations! A ball valve that prevents troubles.

A ball valve that solves problems of "damage, loose parts causing leaks, and unintended opening and closing" due to strong vibrations. We are currently offering a collection of case studies on its adoption in construction machinery.

Hamai's latest valve technology is produced in our domestic factories. 【Features】 - High reliability due to domestic production. - For those troubled by strength issues, cracks, and leaks caused by the occurrence of voids in cast products, we offer high-strength forged ball valves that are less likely to have internal defects. - Custom valves tailored to your company's issues, such as vibration countermeasures and abnormal pressure rise (liquid seal) measures, as well as panel mount and joint ball valves, can also be manufactured to suit your usage environment. We are currently offering a collection of case studies on the use of our ball valves for free. ■【Product Quality Recognized by Professionals】 Hamai's ball valves have a proven track record of mass supply (OEM) to various industrial equipment and machine tools, primarily for major manufacturers, boasting industry-leading high-performance ball valves. They are adopted as genuine parts by various companies, meeting all needs for ball valves with the highest product quality. ★【We accommodate custom orders and modifications】 For more details, please contact [Tokyo Headquarters] TEL 03-3492-6655 <Receptionist / Second Sales>.

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Valve with safety measures to prevent accidents and quality deterioration caused by fluid leakage.

Unexpected collisions and misunderstandings can lead to erroneous opening and closing, causing fluid to spout. Implement safety measures with products equipped with safety features before an industrial accident occurs! We are currently offering a collection of case studies from petrochemical plants.

Hamai's latest valve technology is produced in our domestic factories. Recommended for factory safety measures and suggestions for "improvement"! 【Features】 - One of the few small-diameter valves equipped with safety features - Usable in any orientation - Metal safety mechanism that does not move or break even if bumped by a person - We also have a lineup for those who require locking with a padlock and lockout. - Available in stock at our company, so it can be obtained immediately (*) *Please consult us if you have a bulk order. We are currently offering a free collection of case studies on the use of our ball valves in plants. ■【Product Quality Recognized by Professionals】 Hamai's ball valves have a proven track record of mass supply (OEM) to various industrial equipment and machine tools, primarily among major manufacturers, boasting industry-leading high-performance ball valves. They are adopted as genuine parts by various companies, meeting all needs for ball valves with the highest product quality. ★【Custom Orders / Customization Available】 For more details, please contact [Tokyo Headquarters] TEL 03-3492-6655 <Receptionist / Second Sales>.

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

For those struggling with content surveys of overseas products, solve it with domestically manufactured ball valves!

For those who need traceability and content investigation, especially in semiconductor manufacturing equipment. We deliver completely oil-free ball valves with no residue in a short lead time!

Hamai's latest valve technology is produced in our domestic factory. Recommended for those troubled by specifications being changed arbitrarily by overseas manufacturers! 【Features】 - One of the few domestically manufactured small-diameter valves - Achieves robust traceability as we assemble and manufacture in-house - Provides completely oil-free products with no residue, as we clean before assembling parts - Available immediately from our stock (※) - A lineup of valves with lockout functions! ※ Please consult us if you have a bulk order. We are currently offering a free collection of case studies on the use of our ball valves in semiconductor manufacturing equipment. ■【Product Quality Recognized by Professionals】 Hamai's ball valves boast a track record of mass supply (OEM) to various industrial equipment and machine tools, primarily among major manufacturers, making them top-class high-performance ball valves in the industry. They are adopted as genuine parts by various companies, meeting all needs for ball valves with the highest product quality. ★【Custom Orders / Customization Available】 For more details, please contact us at [Tokyo Headquarters] TEL 03-3492-6655 <Receptionist / Second Sales>.

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

[Free Offer] Solve dissatisfaction with overseas products! A collection of successful case studies on improvements to domestic valves.

Solve delays, damage, and operational errors in overseas-made valves with domestic products! We are currently offering three successful case studies that balance operational efficiency and safety for free!

Are you facing challenges such as "it takes time to respond to substance content investigations," "managing 4M changes is difficult," "there are many instances of damage and leaks," and "there is a risk of accidents due to operational errors"? With Hamai's domestically manufactured ball valves, we achieve quick responses and stable quality through integrated production from procurement to assembly. In fact, many major manufacturers have seen improvements in operations and accident prevention. ▼ Case Studies - Construction machinery manufacturer: Contributed to a significant reduction in damage issues and zero accidents. - Oil plant manufacturer: Eliminated labor accident risks by preventing operational errors. - Semiconductor manufacturing equipment manufacturer: Submitted investigation documents within a week, greatly reducing the burden of quality control. For more details, please check the "Download Catalog" link below.

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Completely oil-free ball valve to prevent contamination by impurities, with proven performance in pure water systems and similar applications.

A completely oil-free ball valve that prevents the contamination of impurities such as grease. Proven performance in pure water systems and water treatment systems! Large stock available for immediate delivery!

For those struggling with long lead times for oil-free products. Get high-quality oil-free ball valves right now. 【What is oil-free processing?】 In general products, lubricating oil is used inside the ball valve for smooth operation. This is the process of removing that lubricating oil. 【Purpose of oil-free processing】 It is used in clean environments where the contamination of impurities and oil, like lubricating oil, is a problem. It is suitable for use in pure water systems and similar applications. 【Features of Hamai's oil-free products】 ● No residual grease due to cleaning treatment before assembly of parts. ● Stock available through lot production. ● Can accommodate those using in even cleaner environments (re-cleaning of finished products, work under clean room conditions, etc.) ● Available in brass and stainless steel products. ● A butterfly handle for space-saving is also included in the lineup. 【About Hamai's ball valves】 Hamai's industrial ball valves are among the industry's top high-performance ball valves, boasting a track record of mass supply (OEM) to various industrial equipment and machine tools, primarily for major manufacturers in automotive, semiconductor manufacturing equipment, and general industry. They are adopted as genuine parts by various companies, and we respond to the needs for unique functions and requirements for ball valves with overwhelming quality.

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Safety Measures Documentation to Prevent Misoperation of Piping and Valves: Case Studies

Now that no problems have arisen, we will clearly explain the safety points that we want to review based on case studies!

Organizing the risks of operational errors that are often overlooked in piping and valve operations based on actual cases. This is a useful document for safety checks on-site and for sharing within the company. - Case study collection: [Petrochemical Plant] - FAQ for ball valves (examples of issues during use) - Examples of improper use of ball valves (dangerous safety measures) - Collection of safety measures for ball valves (safety measures for different usage environments) - Comprehensive catalog

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
Prev 1 Next
  • あなたの設計時間 CADに奪われていませんか? 制約から解放される新たな設計環境へ
  • 金属・化学・窯業・食品・医療品などのほぐし・解砕・ふるい分けがこれ一台 解砕機構付き佐藤式振動ふるい機 つばさ デモ実施中!
    • Contact this company

      Inquiry Form
    • Before making an inquiry

      Download Profile

    Products

    • Search for Products

    Company

    • Search for Companies

    Special Features

    • Special Features

    Ranking

    • Overall Products Ranking
    • Overall Company Ranking

    support

    • site map
    IPROS
    • privacy policy Regarding external transmission of information
    • terms of service
    • About Us
    • Careers
    • Advertising
    COPYRIGHT © 2001-2026 IPROS CORPORATION ALL RIGHTS RESERVED.
    Please note that the English text on this page is automatically translated and may contain inaccuracies.