Manufacturing and processing contract

七生工業 技術部

addressKanagawa/Kanazawa-ku, Yokohama-shi/Fukuura 2-10-9
phone045-782-7705
last updated：

七生工業 List of Products and Services

1～4 item / All 4 items

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Acidic gold plating solution iron ion removal device NANAO IP-ZERO Fe

Significantly reduce the time and cost until the need for plating solution replacement! Compact design that can be used anywhere.

The "NANAO IP-ZERO Fe" is a cartridge exchange and regeneration type iron ion removal device for acidic plating solutions. It significantly improves the time until the plating solution needs to be replaced. After using the plating solution to a specified Fe concentration, you can choose to remove Fe ions in a separate process using this product. 【Features】 ■ Compact device that does not require much installation space ■ Continuous removal of Fe ions ■ Maintains low Fe concentration over a long period ■ Allows selection of the specified removal operation time to reduce Fe concentration below the reference value *For more details, please refer to the PDF document or feel free to contact us.

  • Other water treatment equipment
  • Plating Equipment

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Acidic gold plating solution impurity metal ion removal device NANAO IP-ZERO

No negative impact on plating! A device that can remove 99% of nickel from acidic plating solution.

"NANAO IP-ZERO" is a device developed for the purpose of removing nickel ions, which are impurities in acidic gold plating solutions. When applying partial gold plating to nickel-plated materials, nickel dissolves in the gold plating solution, adversely affecting the properties of the gold plating layer. Researchers at Nanao Industry have established a technology that separates and removes not only nickel ions but also iron ions by combining multiple separation techniques. 【Features】 ○ Can remove 99% of nickel, which is mixed in as an impurity in acidic gold plating. ○ Gold compounds remaining in the device are cleaned and recovered to be returned to the gold plating tank. ○ The plating solution after removal has no impact on the plating process. → Tested in plating factories. ○ Significantly reduces the time required for plating solution regeneration. → Prevents funds from being frozen for a certain period, improving capital turnover efficiency. For more details, please contact us or download the catalog.

  • Other water treatment equipment
  • Plating Equipment

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Precious metal recovery device

We efficiently recover precious metals from aqueous solutions such as plating waste liquids.

We are continuously working on high efficiency, low running costs, and the development of new products without any neglect.

  • Separation device

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Precious metal recovery business

All substances containing precious metals, regardless of whether they are solid or liquid, are included.

High recovery rate, low price

  • others

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