We will exhibit at the 21st Mechanical Components Technology Exhibition (M-Tech).

Improved heat transfer efficiency with thin-diameter low-fin tubes! Enables miniaturization and weight reduction of heat exchangers! Achieves significant improvement in thermal efficiency, capable of handling both heating and cooling!

★ーーーWe will be exhibiting at the 21st Mechanical Components Technology Exhibitionーーー★ Dates: June 21 (Wednesday) - June 23 (Friday), 2017 Venue: Tokyo Big Sight, East Hall 3 Our Booth: 25-42 ★ーーーーーーーーーーーーーーーーーーーーーーー★ Sanwa's low-fin tubes are manufactured in fin shapes tailored to customer requirements, significantly improving thermal efficiency by increasing surface area. Additionally, we are the only company in Japan with processing technology for small diameters starting from Φ5, which enables the reduction of the number of heat transfer tubes and the miniaturization and lightweighting of heat exchangers. Our products have been used in various fields, including various heat exchangers and components of biomass power generation equipment. 【Features】 ■ Low-fin processing is possible for minimum diameter of φ5 and can be adjusted to material length ■ Manufactured in desired fin shapes, pitches, and various numbers of fins ■ Compatible with a variety of materials (carbon steel, SUS, copper, aluminum, titanium) ■ Bending processing is also available (U-bending, hairpin bending, etc.) *For more details, please download the catalog from the link below or contact us.

• Heat exchanger
• others

Improved heat transfer efficiency with small-diameter low-fin tubes! Enables miniaturization and weight reduction of heat exchangers!

Sanwa's low fin tube can be manufactured in fin shapes tailored to customer requirements, significantly improving thermal efficiency by increasing surface area. Additionally, we possess unique processing technology for small diameters starting from Φ5, which enables the reduction of the number of heat transfer tubes and allows for the miniaturization and lightweighting of heat exchangers. Our products have been used in various fields, including different types of heat exchangers and components for biomass power generation systems. 【Features】 ■ Low fin processing is possible with a minimum diameter of φ5, tailored to material length ■ Manufactured in desired fin shapes, pitches, and various numbers of fins ■ Compatible with a variety of materials (carbon steel, SUS, copper, aluminum, titanium) ■ Bending processing is also available (U-bending, hairpin bending, etc.) *For more details, please download the catalog from the link below or contact us.

• Heat exchanger
• others

Bolts and nuts that can accommodate a variety of applications! Packed with useful information for selection!

The "Bolt and Nut Handbook" is a catalog from Sanwa Iron Works Co., Ltd., which manufactures and sells bolts and nuts for piping and pressure vessels. It includes useful information for selecting bolts and nuts, such as types of bolts, shapes of nuts, and a list of standards. In such cases... I want to know the standards of the screws currently in use! I want to find an equivalent product when the same one I am using is unavailable! I want to know about high-strength screws and nuts! These can be resolved with the "Handbook"! ★ We also offer a convenient business card-sized "Screw Handy Guide" as a gift. If you would like one, please contact us. (The content is almost the same as the handbook.) 【Contents (partial)】 ■ Types of bolts ■ Shapes of nuts ■ Stud bolt and nut weight calculation table ■ Bolt and nut hardness conversion table ■ Chemical composition standards list * For more details, please refer to the catalog or feel free to contact us.

• others

A pipe thread with strong joint strength! Achieves excellent earthquake resistance, pressure resistance, and durability!

The "Rolling Nipple" is a pipe thread that has strong bonding strength with fittings and excels in earthquake resistance, pressure resistance, and durability. Traditionally, pipe threads used in piping fittings were mainly produced through cutting processes, but this led to various issues in performance due to the reduction of effective pipe thickness and inconsistencies in thread precision and surface smoothness. Our product achieves a high-precision and smooth thread surface through rolling, improving the adhesion between male and female threads. It resolves the issues associated with cutting threads. 【Features】 ■ Earthquake resistance ■ Pressure resistance ■ Durability ■ Sealing performance *For more details, please refer to the catalog or feel free to contact us.

• others

Proven track record for a wide range of applications! A trusted brand recognized both domestically in Japan and internationally.

Our company handles a variety of products used in diverse fields, including stud bolts, bolts and nuts for piping and pressure vessels. These products are utilized in petrochemical plants, LNG plants, oil refining, nuclear power generation, shipbuilding, water treatment, natural gas, heat exchangers, environmental equipment, thermal power generation, and many other applications, and are recognized as a trusted brand not only in Japan but also overseas. 【Main Applications】 ■ Petrochemical Plants ■ LNG Plants ■ Oil Refining ■ Nuclear Power Generation ■ Shipbuilding ■ Water Treatment ■ Natural Gas ■ Heat Exchangers ■ Environmental Equipment ■ Thermal Power Generation *For more details, please refer to the external link page. Feel free to contact us as well.

• others

Bending processing is also available! We will manufacture according to your requested fin shape, pitch, and other conditions.

The "Low Fin Tube" can be manufactured in fin shapes according to customer requests, significantly improving thermal efficiency by increasing surface area. Additionally, we have processing technology for small diameters starting from φ5, which allows for a reduction in the number of heat transfer tubes and enables the miniaturization and lightweighting of heat exchangers. So far, it has been used in various fields of heat exchangers, including as parts of biomass power generation equipment. 【Features】 ■ Bending processing is also available (U-bending, hairpin bending, etc.) ■ Compatible with various materials (carbon steel, SUS, copper, aluminum, titanium) ■ Can be manufactured in requested fin shapes, pitches, and various numbers of fins ■ Low fin processing is possible for a minimum diameter of φ5 and according to material length *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• others

This is a high-strength stainless steel bolt that achieves high strength, corrosion resistance, high-temperature resistance, and low-temperature impact resistance.

The High Strength 100 Series is a high-strength stainless steel bolt that takes advantage of the main components of stainless steel, such as Ni, Cr, and Mo, while enhancing the cold work rate in our own factory. It excels in high-temperature resistance, corrosion resistance, and low-temperature impact resistance. As fastening components for equipment used in ultra-low temperature high pressure and high temperature high pressure applications, stud bolts, embedded bolts, and chemical anchors are now available for use. 【Features】 - Custom-made products possible due to in-house manufacturing - High strength with a tensile strength of 1,000 N/mm² - High strength even at elevated temperatures - Absorbs low-temperature impact energy despite high strength - Longer lifespan compared to iron, reducing the hassle of replacements For more details, please contact us or download the catalog.

• others

Custom-made insulating bolts and nuts.

The bolts and nuts are manufactured and sold not only based on the distinction between iron and stainless steel but also according to specifications regarding material, strength, and plating. Since they are made to order, there is flexibility in the shape of the bolt body and insulating parts. The bolts and nuts can comply with not only JIS standards but also ASTM and ANSI/ASME, and various test certificates can be issued.

• Bridge Materials
• Piping materials (copper pipes, cast iron pipes)

【Exhibition Information】 Exhibition Name: Food Processing Technology Exhibition 2025 Date and Time: November 14, 2025 (Friday) 10:30 AM - 4:30 PM *Free entry and exit, pre-registration required Location: Osaka Industry Creation Center - We will showcase technical products using the factory deodorant "Deofure." - We will display the tofu defoamer "Tofu Up." - Other fragrance technology products will also be exhibited. *For more details, please refer to the materials.

Protech Engineering will exhibit at the "Landslide Disaster Prevention Technology Forum '25 in Toyama," organized by the Japan Society for Slope Disaster Prevention Technology, scheduled to be held on Thursday, October 9, 2025. On that day, we will provide detailed explanations of the following disaster prevention products using models, panels, and various materials. ◆Exhibited Products◆ - Pile-type debris flow and driftwood countermeasures for non-flowing streams / Urban Guard (model display) Additionally, our representative will conduct a technical presentation, so we kindly invite you to attend.

Protech Engineering (Booth Number: 240) will be exhibiting at the "Hokkaido Construction Development Comprehensive Exhibition 2025," scheduled to be held on October 8 (Wednesday) and 9 (Thursday), 2025. On the day of the event, we will provide detailed explanations of the following disaster prevention products using models, panels, and various materials. ◆ Main Exhibited Products ◆ - Energy-absorbing rockfall protection fence / ARC Fence (model display) - Landslide debris protection fence / Slope Guard Fence Type LE (model display) - Pile-type (pile foundation) debris flow and driftwood countermeasure for non-flowing streams / Urban Guard - Avalanche prevention piles / Tri-Pile - Avalanche protection fence / Slope Guard Fence Type LS - High energy-absorbing rockfall protection fence / Macro Fence In addition, we will have a variety of materials on disaster prevention products developed independently by Protech Engineering, so we kindly invite you to visit our booth.

Profect Co., Ltd. will hold a seminar on October 3rd (Friday) themed around the IT Implementation Subsidy 2025 and our developed and sold production management system "TED." This year's IT Implementation Subsidy has seen a significant decrease in the acceptance rate compared to previous years. Many companies are struggling with the situation of having wanted to implement IT tools but being rejected. In this seminar, we will explain why the acceptance rate has dropped, the background behind it, and the key points for being accepted. Additionally, we will introduce our initiatives that have achieved a 100% acceptance rate so far this year and the reasons why our production management system "TED," registered as an IT tool, is chosen. To accommodate busy schedules, this seminar will be held in a hybrid format, allowing for both in-person attendance and online participation via Zoom. Please choose your preferred method of participation according to your convenience. If you are currently considering applying for the IT Implementation Subsidy or are interested in production management, we encourage you to join us. We sincerely look forward to your application.

An international forum aimed at promoting the circular economy and closed-loop economy, "Closed Loop Recycle Forum 2025 (hereinafter referred to as CLRF2025)," will be held for two days from November 25 (Tuesday) to 26 (Wednesday) at The Oriental Terrace in Chuo Ward, Hamamatsu City, Shizuoka Prefecture. In Europe, closed-loop recycling practices are already advancing. We have organized this international forum as a platform to connect the forefront of Europe with Japan's challenges, striving for a future that balances economic viability and environmental sustainability. A total of 12 speakers, including Chairman Kajiwara of the Waste and 3R Research Foundation and Director Kaneko of the Ministry of the Environment's Container and Packaging Recycling Division, along with leading recycling operators and researchers from Japan and Europe, will present advanced examples of the circular economy and closed-loop economy. Furthermore, through discussions on the feasibility and challenges of implementation in Japan, we will explore hints for sustainable business models that companies and local governments should aim for.