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  5. Food Conveyor Equipment
  6. Drum Unloading System (One Nut Pump)

Drum Unloading System (One Nut Pump)

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last updated:Jun 10, 2026

中央理化 本社
中央理化 本社
  • Official site

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
Flotronic-Drum-Pump-2.jpg

Drum Unloading System (One Nut Pump)

Flotronic-Drum-Pump-2.jpg
Flotronic-Drum-Pump-2.jpg
  • Related Link - https://chuorika.co.jp/onp_unloading.html

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basic information

The drum unloading system combines a unique one-nut pump with a barrel unloading device. The one-nut sanitary style pump, designed based on 3A and EHEDG standards, is used in the sanitary product/sanitary industry. Using an external CIP rig allows for stationary cleaning. The one-nut design of the pump enables easy disassembly and cleaning. To minimize the product remaining in the drum/barrel, an expandable seal is used, reducing product waste. The mechanism for raising and lowering the pump is entirely air-driven. There are portable and fixed versions available. A roller system can be installed at the container setup as needed. - Maximum supply air pressure for the pump: 0.72 MPa - Maximum seal pressure: 0.15 MPa - System control supply air pressure: 0.2 ~ 1.0 MPa - Pump operating temperature: 0℃ ~ +135℃ - System weight: approximately 200 Kg

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Applications/Examples of results

▼Food: Transfer of tomato paste/puree, etc. ▼Cosmetics: Products packaged in vinyl inside drums can also be transferred. ▼Pharmaceuticals: 200L of silicone with 500,000 cps can be transferred in about 10 minutes. - There is no need to move the container with the installation of portable casters. - In the case of fixed installations, the container placement area is roller-equipped. - Disassembly, cleaning, and reassembly of the pump are easy.

catalog(8)

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One-Nut Pump Case Study Collection

One-Nut Pump Case Study Collection

TECHNICAL
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Good Food Pump (One Nut Pump)

Good Food Pump (One Nut Pump)

PRODUCT
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One Nut Pump Drum Unloading System

One Nut Pump Drum Unloading System

PRODUCT
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Air-driven diaphragm pump "One Nut Pump" comprehensive catalog

Air-driven diaphragm pump "One Nut Pump" comprehensive catalog

PRODUCT
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Would you like to reduce the maintenance time of diaphragm pumps?

Would you like to reduce the maintenance time of diaphragm pumps?

PRODUCT
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[Case Study Material] Hygienic Pump "One Nut Pump" Optional Features

[Case Study Material] Hygienic Pump "One Nut Pump" Optional Features

TECHNICAL
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[Catalog] Easy maintenance and cleaning! Air-driven double diaphragm pump

[Catalog] Easy maintenance and cleaning! Air-driven double diaphragm pump

PRODUCT
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High Cleanliness Sanitary Pump "Hygienic Series"

High Cleanliness Sanitary Pump "Hygienic Series"

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News about this product(4)

Plant Show 2026 Exhibition Participation

  • Seminar・Event

Plant Show (Explosion-proof and Disaster Prevention Risk Measures Exhibition) We will be exhibiting air motor stirrers and air-driven diaphragm pumps.

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[Exhibition Participation] Interphex Japan 2023

  • Seminar・Event

Central Rika Booth Number: 20-17 Japan's Largest! Specialized Technology Exhibition for Pharmaceuticals and Cosmetics This is Japan's largest specialized technology exhibition where all products, technologies, and services related to the research and manufacturing of pharmaceuticals and cosmetics are showcased. Pharmaceutical and cosmetic manufacturers from both domestic and international markets will attend, engaging in active business discussions with exhibiting companies. We will be exhibiting at Interphex Japan 2023. Scheduled Exhibits: - Air-driven stirrers - Electric stirrers - Air-driven diaphragm pumps, etc. We plan to showcase stirrers and one-nut pumps that have received great acclaim from cosmetic and pharmaceutical manufacturers. We will introduce products with sanitary specifications.

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The 24th Interphex Japan

  • Seminar・Event

We plan to exhibit at Interphex Japan, held at Tokyo Big Sight from July 13 (Wednesday) to 15 (Friday), 2022. We will showcase products for the pharmaceutical and cosmetic industries, as well as for food and chemical industries. - Air motor stirrer - Electric stirrer - Air radial piston motor - Air-driven diaphragm pump, etc.

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

  • Seminar・Event

FOOMA JAPAN 2022 International Food Industry Exhibition June 7 (Tuesday) - June 10 (Friday), 2022 Tokyo Big Sight We will be exhibiting. Booth number: 5K-29 Sanitary one-nut pump Air motor mixer Air radial piston motor, etc. We will be showcasing sanitary products for the food, cosmetics, and pharmaceutical industries. Please come visit us! If you would like an invitation, please feel free to contact us. mail@chuorika.co.jp

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Companynews list (19)

Company information

中央理化

中央理化 本社

Industrial Machinery

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We are a manufacturer of air-driven stirrers and electric stirrers! We also handle micro-dosing pumps and air-driven diaphragm pumps. Today, both our stirrers and pumps are highly praised by users in the sanitary industry. Please leave the use of stirrers and pumps in clean and explosion-proof environments to us! We participate in exhibitions such as FOOMA and Interphex every year. We also offer free demonstration units and product introductions during visits!

Product/Service List (65)

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