Highest Quality Zinc Die Casting
We pride ourselves on our ability to produce high quality zinc die castings, guaranteed on time, every time - supplying our customers with a reliable source of componentry which meets all expectations. For this reason, we are trusted by established companies across a global supply chain for our work.
Over our decades of operation as a family-run business, growing our ability to provide high levels of service, H&J Speake has continued to flourish within our industry as an leading zinc die casting manufacturer. Our high quality and varied portfolio demonstrates the capability of H&J Speake to produce honest and reliable zinc componentry, trusted by a range of industries, from window and door hardware and building products, to leisure and automotive components.
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We work hand in hand with our clients to ensure we understand and meet the requirements of their unique projects, and employ this time and time again for a straightforward and simple production process you can trust.
H&J Speake’s zinc die casting production services range from design to delivery, supporting our customers throughout a comprehensive service which is tailored to their requirements. We offer advice and guidance throughout this process to ensure our parts are perfectly suited to their application.
Our zinc die castings are produced using 20-125 tonne fully automated hot chamber die casting machines, which are compatible with existing tooling for seamless product migration, or for the creation of new and bespoke tooling.
We manufacture zinc alloy parts of various weights, using a highly automated process which increases design and manufacturing efficiency and repeatability across batches, ultimately lowering costs and shortening lead times.
The zinc die casting process can produce high quality metal components to tight tolerances and complex geometries. During casting, a molten zinc alloy is injected into a die, which is split into two halves. The zinc takes on the shape of the cavity within the die before being cooled and solidifying; once this happens, the zinc part can be removed from the mould or tool.
Zinc is one of the most popular materials to use for die casting, followed by aluminium and magnesium. Furthermore, zinc is extremely versatile with a range of physical and mechanical properties.
- Stronger parts, thinner walls - zinc is stronger than other commonly used casting materials such as aluminium, magnesium, or even plastics. This means thinner wall sections can be specified for a similar performance within the final component.
- Faster production process - due to the ‘hot chamber’ process which zinc casting utilises (the molten material is held within the furnace within the machine, therefore negating the need for a manual hand pour each cycle) and lower melting and therefore cooling point, zinc casting is the quickest of all casting processes. This, in turn, leads to reduced costs and lead time.
- Extended tooling life - typically a zinc tool will last 10 times as long as an aluminium tool; this is due to its lower melting point and less abrasive properties of the material.
- Range of finishes - a range of powder coated, painted, or plated finishes can be added to cast zinc components with ease. Each finish will have various decorative, protection, or durable properties which can be chosen for the desired function of the product.
- Corrosion resistance - whilst zinc will degrade and slowly break down over time, zinc does have increased corrosion resistance compared to other casting materials, and will provide the best resistance to corrosion.