[Exhibition Participation] FOOMA JAPAN 2022 [Tokyo Big Sight]

[Fire Protection Law Compliant Explosion-Proof Specification] Diaphragm Pump (One-Nut Pump) for the Transfer of Hazardous Liquids such as Chemicals and Dangerous Goods.

The "K-Style Pump," an air-driven diaphragm pump from Chuo Rika, is a high-maintenance, high-cleanability pump that leverages the characteristics of our one-nut pump, which can be assembled and disassembled with just one nut. The pump body is made of PTFE or anti-static PTFE and is encased in stainless steel. **Features of the K-Style Pump:** - Easily disassembled and cleaned with just one nut - Maintenance can be performed without removing the pump from the piping - Made of PTFE, suitable for transferring hazardous materials and chemicals - The exterior of the pump is covered with stainless steel casing, compliant with fire safety regulations - Protected from various pressure and temperature changes *For product details, you can view the materials from [PDF Download] or feel free to [Contact Us].*

• Special Pump

Air-driven diaphragm pump "Good Food Pump" for transferring high-viscosity food products, including those with solids, and tool-free maintenance.

Easily disassembled and assembled with just one nut! Zero residual bacteria in the pump after cleaning! Food-grade air-driven diaphragm pump 'One Nut Pump' Sanitary pump for food applications such as high-viscosity sauces like mayonnaise, chocolate, and fruit-containing beverages. Tool-free design requires no tools for disassembly/assembly! Easily disassembled with just one nut! Capable of transferring products with a viscosity of approximately 300,000 cps! Transfers solids up to 25mm in liquid without breaking them! Also suitable for transferring products containing almonds and fruit purees. Additionally, there is a slim style (FDA 3-A EHEDG) available as a sanitary pump. Ideal for transferring cosmetics and pharmaceuticals! ★ Videos are available on YouTube. Please search for 'Chuo Rika'.

• Other pumps

【Exhibiting at FOOMA JAPAN】For beverages and food! Simplifying daily decomposition/cleaning! Air-driven diaphragm pump.

The sanitary pump "One Nut Pump" handled by Chuo Rika is an air-driven diaphragm pump suitable for food, beverages, cosmetics, pharmaceuticals, and more. It reduces the time required for daily disassembly, cleaning, and reassembly! It is CIP-cleanable and can withstand high-temperature steam! It has a pressure resistance of up to 0.7 MPa! Each part has no dead angles, allowing for thorough cleaning without missing any residues or dirt. We have received feedback that the residual bacteria after cleaning is zero, and since there are no sliding parts made of metal, very little iron powder is generated. You can experience easy disassembly and reassembly at the Interphex exhibition! We also offer free demo units for loan, so please feel free to contact us. 【Product Features】 - Zero residual bacteria inside the pump after CIP cleaning - Easily disassembled with just one nut, providing excellent cleanability - Can be cleaned with hot water and steam - Suitable for transporting high-viscosity liquids such as creams and jams - Stainless steel is standard in SUS316L - Ideal as a replacement for rotary pumps and screw pumps (superior in cost and maintenance workload) - No sliding metal parts, so no iron powder is produced

• Special Pump

For those struggling with the "inlet pressure" of diaphragm pumps! It can handle external pressure up to 0.7 MPa even in a stationary state, preventing diaphragm damage.

Our "One Nut Pump" is a sanitary type diaphragm pump that can be disassembled and assembled with just one nut. It is an air-driven diaphragm pump suitable for the transfer of food, beverages, and dairy products, and can serve as an alternative to rotary pumps and snake pumps. ~ Introducing examples of applications using the optional features of the One Nut Pump ~ 【Regarding Inlet Pressure】 If the inlet side exerts a pressure exceeding 0.07 MPa on the pump, the load on the diaphragm becomes significant, leading to a substantial reduction in its lifespan. By using a back plate, the diaphragm is protected against the inlet pressure, allowing it to withstand a maximum pressure of 0.7 MPa even in a stationary state. 【CIP Cleaning】 When performing CIP cleaning, an external pump is used to push the cleaning solution into the One Nut Pump under pressure. Typically, it is necessary to operate the One Nut Pump in conjunction with the external pump, which can cause the diaphragm to twist or break when stationary. By using a back plate, there is no need for synchronized operation, which helps extend the lifespan of the diaphragm.

• Positive Displacement Pump

Disassembly and assembly can be done with just one nut! A diaphragm pump with a high cleaning capability and simple design! [Free demo unit available for loan]

【High Cleanability Simple Design Diaphragm Pump】 For the transfer of sanitary products, paints, chemicals, waste liquids, etc.! In explosive environments! Facilitates daily pump cleaning and maintenance! With a compact style, long-lasting diaphragm, easy-to-clean simple structure, fewer parts for quick maintenance, this diaphragm pump can handle a wide range of liquids due to its rich variety of materials. It features a non-lubricated air system capable of a maximum flow rate of 55 to 908 L/min. The diaphragm is designed to withstand high temperatures (up to 135°C), allowing it to handle a wide range of liquids. The short stroke design greatly enhances pump efficiency, and the use of a one-nut pump significantly reduces process downtime while saving substantial maintenance costs without altering pump performance. ■ Hygienic Pump ■ [New Model] Residual Liquid Drain Model Now Available ■ CIP/SIP Models Available ■ Suitable for Pharmaceutical, Cosmetic, and Detergent Manufacturers *For more details, please contact us or download the catalog.

• Other food machinery

Prevent and suppress piping pulsation caused by pumps! Reduce piping pulsation, vibration, noise, and distortion by 95%! Achieve smooth pump transfer!

★Air-Driven Diaphragm Pulsation Dampener★ Can be mounted on existing piping! Solves piping issues caused by pumps! For those troubled by piping vibrations, noise, and distortion! Suppresses pulsation in pump piping by approximately 95%! Reduces pulsation, noise, and distortion in piping that occurs during product pump transfer, alleviating piping troubles! Effective for smooth discharge of fluids! Also ensures smooth and uniform discharge of high-viscosity fluids! No manual setting or control of supply air pressure is required for the dampener body; the dampener itself adjusts the supply air pressure. Diaphragm replacement and maintenance take about 15 minutes!

• Positive Displacement Pump

[Industry Case Studies Available] After the installation of the damper, noise and damage from the piping have improved significantly!

We would like to introduce a case study of the air-driven diaphragm pump "One Nut Pump" that our company handles. ★Target Client: A global beverage manufacturer (damper) The company in question was experiencing issues such as damage to piping due to vibrations from the homogenizer, noise generation, damage at piping connections, and product leakage. The damper can be installed within the piping and allows for CIP cleaning. It connects to the homogenizer's air supply port via a T-connection, enabling the damper to operate at the same air supply pressure as the homogenizer. After the installation of the damper, noise from the piping and damage were significantly improved. 【Case Study Overview】 ■Damper Model: PH76-T-STRI ■Wetted Material: PTFE SUS316L *You can view the complete collection of all case studies in the "Usage Collection," available for immediate PDF download. We also welcome any inquiries you may have.

• Positive Displacement Pump
• Food Conveyor Equipment

[Introducing all 34 case studies!] We present examples of the use of sanitary pumps in the food industry, as well as in the cosmetics and personal care products industry, and the chemical industry.

This document summarizes case studies of the air-driven diaphragm pump "One Nut Pump." It includes examples from various industries such as the "food industry," including food flavoring and fruit juice manufacturers, the "cosmetics and personal care products industry," and "pharmaceutical product manufacturers." Our product has a proven track record across a wide range of applications in food, cosmetics, sanitary products, chemical products, and paints. Please feel free to download and take a look. [Contents (excerpt)] ■ Product Overview ■ Examples from the Food Industry ■ Examples from the Food Industry: Good Food Pump ■ Examples from the Cosmetics and Personal Care Products Industry *For more details, please refer to the PDF document or feel free to contact us.

• Food Conveyor Equipment

A diaphragm pump that can be disassembled and assembled with just one nut. It significantly contributes to reducing maintenance time!

The biggest feature of the One-Nut Pump is its simple structure with a small number of parts. By removing just one nut, quick maintenance can be performed, significantly reducing downtime. It is ideal for industries that require high hygiene standards, such as food, pharmaceuticals, cosmetics, and chemical products. 【Features】 ■ Reduced Maintenance Time It can be easily disassembled and reassembled by removing just one nut. It can be disassembled without removing the pump from the piping by simply taking off the nut. ■ Long-lasting Diaphragm The stroke length of the diaphragm is very short, and a thicker and stronger PTFE diaphragm can be used as standard. The mechanical lifespan is 20 million strokes. ■ Low-Cost Spare Parts The number of spare parts is less than half compared to other manufacturers' diaphragm pumps. *For more details, please request documentation or view the PDF data available for download.

• Special Pump

Oil-free (no lubrication) with low noise! And an environmentally friendly oil-free air motor stirrer!

The oil-less air motor stirrer handled by Chuo Rika eliminates the use of gears and grease in the reduction unit and utilizes a timing belt. Chuo Rika is currently distributing a comprehensive catalog of oil-less air motor stirrers for free. Chuo Rika deals with a wide variety of scientific and physical equipment necessary for the design, manufacturing, sales, research, and production of various process machinery and scientific instruments. *For more details, please refer to the PDF materials or feel free to contact us.

• Mixer/agitator

Disassembly and assembly with just one nut! A hygienic pump that excels in cleanliness and hygiene.

The One Nut Pump "Hygienic Sanitary Pump" is an innovative pump that can be easily disassembled and reassembled by removing just one nut. It is easy to clean (high washability) and hygienic, making it ideal for use in pharmaceutical, cosmetic, and detergent factories. We currently have demo units available for loan! 【Features】 ◆ Easy disassembly with just one nut during cleaning and inspection ◆ Hygienic "high washability" sanitary pump ◆ Contact parts made of PTFE and SUS316L ◆ Equipped with a drain to discharge liquid from inside the pump 【Demo units available now!】 For more details, please download the catalog or feel free to contact us.

• Positive Displacement Pump

[Free demo unit available] Simple maintenance with fewer parts! Air-driven diaphragm pump that can be disassembled and assembled with just one nut - long-lasting diaphragm.

【High Cleanability Simple Design Air-Driven Diaphragm Pump】 The "One Nut Pump (Air-Driven Diaphragm Pump)" features a compact style, long-lasting diaphragm, easy-to-clean simple structure, fewer parts for quick maintenance, and can handle a wide range of liquids due to its diverse materials. It is an air-driven diaphragm pump capable of a maximum flow rate of 55 to 908 L/min with a non-lubricated air system. The diaphragm is designed to withstand high temperatures (up to 135°C), allowing it to handle a wide variety of liquids. With a short stroke, the pump efficiency is very high, and using the One Nut Pump (Air-Driven Diaphragm Pump) significantly reduces process downtime, resulting in substantial savings in maintenance costs without altering the pump's performance. 【Features of the One Nut Pump (Air-Driven Diaphragm Pump)】 ■ Fewer parts for easy maintenance ■ Repair can be done by maintenance personnel without sending it out for repairs if repair parts are purchased ■ Diaphragm replacement can be done while connected to the piping ■ Long-lasting diaphragm *For more details, please refer to the PDF document or feel free to contact us.

• Special Pump

Efficiently transfer products with a maximum viscosity of 500,000 cps in 10 minutes without waste! 1% residue in the container! Sanitary pump.

【Air-Driven Diaphragm Pump】 This device combines a one-nut pump that can be easily disassembled and assembled with a single nut, and an unloading system for drums and barrels. It has a track record of transferring products with a maximum viscosity of 500,000 cps from drums in about 10 minutes! Since it uses a sanitary one-nut pump, it excels in cleanability and sanitation! The residual amount in the container after transfer is less than 1%! The residual amount in the pump is also 70% less than conventional downtime pumps! Achieving reductions in product waste, cleaning and maintenance time, and transfer time!!! Proven in food, personal care, and pharmaceutical applications!

• Food Conveyor Equipment

Easily discharge the internal liquid in the pump with the drain cock! Here are examples of how to use the optional features for diaphragm pumps.

Our "One Nut Pump" is a sanitary diaphragm pump that can be disassembled and assembled with just one nut. It is an air-driven diaphragm pump suitable for the transfer of food, beverages, and dairy products, and can serve as an alternative to rotary pumps and snake pumps. ~ Introducing examples of applications using the optional features of the One Nut Pump ~ Typically, the internal liquid is sealed by a ball when the pump is stopped, but by raising the drain cock, the ball can be lifted to create a gap, allowing the internal liquid to be discharged. [Features of the One Nut Pump] ■ Easily disassembled with one nut, providing excellent cleanability ■ Suitable for transporting high-viscosity liquids such as paints, waxes, and gels ■ Standard material is SUS316L stainless steel ■ Extensive track record in the food, pharmaceutical, and cosmetics industries ■ Ideal as an alternative to rotary pumps and snake pumps (advantageous in terms of cost and maintenance labor) ■ Designed to ensure no bacteria or product residues remain inside the pump (sanitary specification) *For more details, please refer to the [PDF materials] or feel free to contact us.

• Positive Displacement Pump

The pump automatically stops when the target number of times (transfer amount) is reached. The number of operations can be limited within the range of 0 to 99,999 times!

Our "One Nut Pump" is a sanitary type diaphragm pump that can be disassembled and assembled with just one nut. It is an air-driven diaphragm pump suitable for transferring food, beverages, and dairy products, and can serve as a replacement for rotary pumps and snake pumps. ~ Introducing use cases utilizing the optional features of the One Nut Pump ~ [Features of Optional Functions] ◆ By setting a counter, the pump can automatically stop after reaching the desired number of cycles (transfer volume). ◆ The number of pump operations can be limited within the range of [0 to 99999]. [Practical Example: Dividing from a drum into 20L portions] ★ Normal operation: Adjusting the pump's delivery volume while weighing ⇒ Requires setting on a scale, which is cumbersome. ★ When using the option: The pump automatically stops after delivering 20L ⇒ Allows continuous operation for the next tank.

• Positive Displacement Pump

High efficiency and high torque! Introducing an air motor stirrer for experiments and research.

This product is a powerful air motor stirrer for experiments and research that combines low air consumption with high torque. It is easy to switch the rotation direction and load. Additionally, its lightweight and compact design makes it easy to handle. 【Features (excerpt)】 ■ Waterproof ■ Automatic stop with over-torque ■ Easy load switching ■ Lightweight and compact ■ Easy rotation direction switching *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines

Air consumption reduced to 1/5! Introducing a powerful air motor with high efficiency and high torque.

The "Eco Series" is a powerful air motor that balances low air consumption with high torque. It is lightweight and compact, and due to its robust mechanical structure, it is resistant to heat, vibration, and shock, making it a highly safe product. We offer models for process engineering as well as for experimentation and research. 【Features (excerpt)】 ■ Water-resistant ■ Automatic stop at over-torque ■ Easy load switching ■ Lightweight and compact ■ Easy direction switching *For more details, please refer to the PDF document or feel free to contact us.

• Mixer/agitator

Hygienic Pump "One Nut Pump Sanitary Type" is an easy-to-disassemble, hygienic pump that can be machine cleaned.

【One Nut Pump H (Hygienic) Series】 - 3A sanitary standards - Easily disassembled with just one nut during cleaning and inspection - Wetted parts are PTFE and SUS316L - Surface roughness of 0.8μmRa or higher (electropolished) - Equipped with a drain to discharge liquid inside the pump - BS, DIN, ISO (hygienic) fittings 【One Nut Pump Food Pump】 - CIP compatible as standard - Unique one nut design allows for cleaning between batches - Internal jacket for heating/cooling of the fluid (optional) - Self-priming capability (dry 3.6m, wet 7.6m) with a maximum discharge pressure of 0.6Mpa - Hygienic connections tailored to requirements available for all pumps - Low shear, capable of transporting large and delicate solids - Clearance inside the pump allows solids up to 25mm to pass through - Capable of transporting ultra-high viscosity (200,000cps) - Maintenance (disassembly and assembly) possible in just 15 minutes with a T-bar, no tools required

• Positive Displacement Pump

There are no leaks even in high vacuum. It can also be used at normal pressure and slightly pressurized conditions.

The magnetic drive vacuum stirrer adopts induction rotation (magnetic drive) and can be used without leaks even in high vacuum, as well as at atmospheric pressure and slight pressure. It allows for high-speed rotation and is characterized by its durability, as it does not use O-ring shaft seals compared to conventional products. It can be directly connected to the stirrers currently in use. It is ideal for vacuum distillation, evaporation, and concentration. For more details, please contact us or refer to the catalog.

• Mixer/agitator

A gear pump can be used to transfer slurry liquid.

The magnet drive gear metering pump "Ceramics Gear" is capable of pumping slurry liquids with a gear pump. It features leak-free operation, minimal pulsation, self-priming, non-leak, and non-pulse characteristics. It is optimal as a metering pump. For more details, please contact us or refer to the catalog.

• Other pumps

Leakless, low pulsation, self-priming, chemical resistance, variable flow rate.

The 220, 210, 200, and 180 series pumps represent the latest technology of gear pumps conceived by Micropump, and they are unique in the field of magnetic drive pumps. The fundamental principle of this design is the suction shoe, which is patented. Thanks to the suction shoe, the operation of the gear pump has received great acclaim. This design reduces the number of components to only the essentials. Fewer components mean fewer problems and simplified operation on-site. Another important feature of the suction shoe design is that it itself acts as a pressure-loaded pump. In other words, the pressure of the liquid being pumped is applied to the suction shoe gear, enhancing the pump's sealing capability. For more details, please contact us or refer to the catalog.

• Other pumps

Self-priming vacuum 724mmHg - Pulseless (almost no pulsation)

The magnet gear pump "Series 180/120/200/101" is a gear pump characterized by self-priming vacuum of 724 mmHg, pulse-free operation (almost no pulsation), liquid suction from a vacuum, liquid circulation, and seal-less design. For more details, please contact us or refer to the catalog.

• Other pumps

Leak-free magnetic drive system - low pulse

The magnet gear pump "Series 120/180/200" is a gear pump characterized by a leak-free magnetic drive system, low pulsation, and the ability to achieve precise dosing. For more details, please contact us or refer to the catalog.

• Other pumps

We would like to express our congratulations on the continued prosperity of your esteemed company. Our company will be exhibiting at the following trade show, where we will be showcasing a number of products, including our new product, the Packaging Container Air Leak Test (Pin Hole Inspection) Device | MSQ-2003 series. We sincerely apologize for the inconvenience during your busy schedule, but we would like to cordially invite you to attend this event. 【 Trade Show Name 】 【 Dates 】 【 Venue/Booth Number 】

Nitto Kohki will exhibit at the "31st Japan International Machine Tool Fair JIMTOF2022," which will be held at Tokyo Big Sight from November 8 (Tuesday) to November 13 (Sunday), 2022. At this exhibition, we will showcase quick fluid couplings "Couplers," electric screwdrivers "Delvo," labor-saving machine tools, linear drive pumps and their application products, as well as construction equipment "Door Closers," among others.

We will be exhibiting at the following exhibition. Our company will showcase various types of polyethylene pipes. We sincerely look forward to your visit. Exhibition Name: 9th National Small Hydropower Generation Conference in Saitama

Nitto Kohki will hold the "2026 Attack Fair in Misato" at the Misato City Cultural Hall Exhibition Room for two days on Wednesday, August 26, 2026, and Thursday, June 27, 2026. The Attack Fair is an exhibition where you can actually "see, touch, and operate" Nitto Kohki's products. Additionally, there will be wonderful souvenirs for visitors and many fun activities prepared. We look forward to welcoming everyone!

On November 6th, the "Reiwa 8th Year Sennan Region Manufacturing Promotion Seminar and Exhibition Exchange Meeting" will be held. Nichiko Electric Co., Ltd. will also present improvement case studies at the Kaizen presentation session. Advance registration is required (free of charge), so we would be grateful if you could apply and attend on the day. ◎ Reiwa 8th Year Sennan Region Manufacturing Promotion Seminar and Exhibition Exchange Meeting (Advance registration required, free of charge) Date and Time: November 6, 2026 (Friday) from 12:10 to 17:00 Venue: Miyagi Prefecture Okawara Joint Government Building, 2nd floor "Room 201" / 4th floor "Large Conference Room" (Address: 129-1 Minami, Okawara Town, Shibata District, Miyagi Prefecture) Organizer: Specified Nonprofit Corporation Sennan Wide Area Industrial Association, Miyagi Prefecture Okawara Regional Promotion Office Co-sponsor: General Incorporated Association Miyagi Prefecture Management Association Sennan Branch Miyagi Prefecture Okawara Regional Promotion Office, Regional Promotion Department (Contact: Yokoyama) TEL: 0224-53-3199 / FAX: 0224-53-3076 Please fill out the attached application form and apply via email. Application Deadline: October 27, 2026 (Monday) (Note) Members of the NPO Sennan Wide Area Industrial Association and members of the General Incorporated Association Miyagi Prefecture Management Association Sennan Branch should also apply by the above deadline.