Zamak Alloys for Centrifugal Casting

Complete Range of Zamak Alloys for Centrifugal Casting
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At CONIEX, we have over 30 years of experience in the development and improvement of zamak alloys for the manufacture of parts through centrifugal casting.

Our zamak alloys, supplied in ingot packs, offer high mechanical strength and excellent adaptability to any type of shape, as well as great efficiency in machining processes and, above all, a high-quality surface finish.

The application of our zamak alloys by centrifugal casting enables the rapid manufacture of highly precise and resistant parts, facilitating the desired finishes and surface treatments across a wide range of sectors, including jewellery, fashion jewellery, accessories, buckles, buttons, keyrings, promotional items, handbag accessories, decoration, miniatures, construction, electrical applications, and many more.

Our zamak ingots offer excellent characteristics for centrifugal casting in silicone moulds, as they are manufactured and produced exclusively with pure electrolytic zinc developed in accordance with the Zinc DIN 1774 standard.

These are the main characteristics of our zinc-based zamak alloys:

  • High Strength and Hardness
  • Excellent thermal conductivity.
  • Minimum raw material cost.
  • High dimensional accuracy and stability.
  • Excellent wall thickness possibilities.
  • High-quality finish.
  • Outstanding corrosion resistance.
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ZAMAK KS

  • Zinc Standard DIN 1774
  • Manufacture of all kinds of parts.
  • Very high fluidity
  • Special for jewelry in Zamak
  • Melting temperature 380-390ºC
  • Optimum Working Temperature 405-430ºC
  • Density 6.6g/cm3
  • Shrinkage 0.7%
  • 1 ingot = 7.5kg
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ZAMAK K4

  • Zinc Standard DIN 1774
  • Specific manufacturing of Quality Parts
  • High fluidity
  • Special for thick and flat piece
  • Melting temperature 380-390ºC
  • Optimum Working Temperature 405-430ºC
  • Density 6.7g/cm3
  • Shrinkage 0.6%
  • 1 ingot = 7.5kg
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Pioneers and Leaders in the Manufacture of High-Quality Zamak

CONIEX is a supplier of zamak alloys for some of the world’s leading foundries. Thanks to our constant collaboration with customers, we have developed some of the most efficient zamak alloys on the market, enabling us to guarantee the highest levels of quality and productivity for our customers.

Today, the zamak alloys developed by CONIEX are regarded as an industry standard. Thanks to our investment in R&D&I, we have overcome the issues that occurred in the past, when casting zamak in rubber or silicone moulds was not possible, often causing incomplete filling, porosity, shrinkage, and other defects.

It is essential to work with a trusted supplier, as low-quality zamak can cause irreversible problems in a company’s production process and, consequently, affect its bottom line.

These are the main problems caused by low-quality zamak:

  • Black traces on the pieces
  • Pores
  • Incomplete filling
  • Rejection
  • Low productivity
  • Air bubbles

At CONIEX, we are committed to offering all our customers the best zamak ingots and the best silicone moulds for zamak.

Properties and Advantages of Zamak

Cast zamak has proven to be the ideal material for producing high-quality, durable parts, regardless of their complexity. This is due to the excellent properties of zinc, as well as its other components, aluminium and copper, which provide hardness and castability, respectively.

Thanks to its numerous advantages, zamak is one of the most popular materials for manufacturing highly resistant parts with demanding aesthetic and precision requirements.

The manufacture of zamak parts through centrifugal casting offers numerous advantages.

  • Reduced production times
  • Reduced production costs
  • Zamak parts offer a better finish than parts made from other materials, such as aluminium.
  • The manufacture of parts through centrifugal casting in zamak allows for varied production volumes with high quality.
  • Centrifugal casting cycles using zamak are faster and more versatile.
  • Zamak melts at around 400–420°C, requiring lower energy consumption for its transformation.
  • Parts manufactured with zamak provide higher quality and better results in subsequent surface treatments applied to the parts, such as painting, chrome plating, and zinc plating.
  • Centrifugal casting of zamak for part manufacturing facilitates the reproduction of fine details.
  • Machining savings.

Likewise, efficient sprue recovery improves sustainability, reduces costs, and maintains casting quality. Reincorporating a controlled amount in each cycle optimises material use without affecting the properties of zamak, ensuring a more efficient and environmentally responsible process. For more details, please see our blog post on sprue recovery.

Download Silicone Mould Catalogue