The Zinc line at JOA-Hardware and the experience of the team goes back to the very start of the company. Since those early days the technology has been upgraded as new equipment replaced old. The latest specification hot chamber machines are employed to produce consistent quality castings time after time. The casting capability across the zinc machines allows zinc casting production up to 4 kg. The special properties of zinc based alloys, their castability and low melting point, allows very close tolerances to be cast, eliminating machining to all but the tightest controlled dimensions such as bearing bores.
The finishes that can be applied to zinc based castings is legendary, from raw polished to gold plating and every option in between.
The lower cost of tooling associated with zinc casting alloys and the extended die life makes this alloy choice ideal for certain options. Half a million shots are regularly achieved before tooling requires refurbishment or replacement. This, together with its finish plating options, close tolerances achievable, plus its intrinsic weight ensures there will be a steady future for this alloy and casting system.