Zamak Die Casting for Locks and Security
Zamak die casting for the locks and security sector
The locks and security sector represents Micrometal’s core business, accounting for about half of our turnover. For over thirty years we have supplied precision die-cast zamak components to leading European and global lock manufacturers, developing deep expertise in the specific requirements of this sector. The components are cast in our zamak die casting foundry in Erbusco, near Brescia, Italy.
Components we produce for locks and security
Zamak is the material of choice for lock components thanks to its excellent castability, high dimensional accuracy, good mechanical resistance and ability to accept high-quality surface finishes. We produce:
- Lock cylinder bodies
- Lock cases and housings
- Handles and lever handles
- Cam locks and accessories
- Security fittings and escutcheons
- Internal mechanical components
Precision and reliability
The lock sector demands extremely tight dimensional tolerances and high reliability. Our quality system, ISO 9001 certified since 2002, and dimensional checks on our in-house CMM guarantee the consistency required by this demanding sector. Request a quote.
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How we engineer a lock component
For cylinder housings, roses and escutcheons the starting alloy is ZP3: it fills thin walls well and holds dimensions over time. For parts working under stress — latches, cams, tailpieces — we move to ZP5, which is harder and more creep-resistant.
During co-design we review wall thickness with the customer (uniform walls, no isolated masses that encourage porosity), draft angles, and the holes and threads worth casting directly to reduce machining.
Typical lock finishes — satin nickel, bright chrome, brass plating, painting — are applied by our partners on the parts we die-cast, with a copper-nickel cycle before the galvanic finish.
The mould is designed by our technical office and made under our direct supervision; it remains the customer’s property and is guaranteed for 400,000 shots produced on our presses. Every batch is traceable and dimensional checks are carried out on our in-house CMM, with initial sampling (PPAP/EMPB) on request.
FAQ — Frequently Asked Questions
Which alloy should I choose for a cylinder housing?
Usually ZP3, for castability and dimensional stability. If the housing must withstand high loads or a mechanical attack, we assess ZP5 with you.
Can you provide initial sampling (PPAP/EMPB)?
Yes, on the customer’s request we provide initial samples with a dimensional report.
What lock components can be made from zamak?
Lock bodies, cylinders, rosettes, escutcheons, handles, latches and deadbolts. Zamak ensures dimensional accuracy and mechanical strength ideal for security applications.
Is zamak resistant to break-ins?
Zamak components offer high mechanical strength (up to 330 MPa with Zamak 5), superior to many plastics and comparable to some aluminium alloys.
What finishes are available for lock components?
Chrome plating, nickel plating, painting and burnishing. Each finish provides different levels of corrosion resistance and aesthetic appearance.
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Need zamak die cast components?
Upload your technical drawing and receive a quote within 24/48 hours.