Zamak Die Casting for Instrumentation and Sensors

Zamak die casting for instrumentation and sensors

Micrometal produces precision die-cast zamak components for instrumentation and measurement sensor manufacturers. The dimensional accuracy achievable with zamak hot chamber die casting is essential for components that must interface precisely with measurement elements and electronic circuits. Parts are produced in our zamak die casting foundry in Erbusco, near Brescia, Italy.

Components for instrumentation

  • Sensor housings and bodies
  • Measurement instrument enclosures
  • Precision mounting brackets
  • Connector housings
  • Protective covers
  • Calibration and adjustment components
Tesa micrometer measurement of zamak micro-component - Micrometal dimensional control
Digital Tesa micrometer measuring a zamak micro-part: 1-in-100 dimensional check at ±0.01 mm with continuous SPC traceability for instrumentation lots.

Precision and repeatability

Instrumentation components require extremely consistent dimensional repeatability between batches. Our ISO 9001 certified quality system and statistical process control (SPC) guarantee the dimensional consistency required by measurement instrument manufacturers.

Zamak micro-components on millimeter ruler - dimensional scale Micrometal
Four zamak micro-components lined up on a graduated ruler: visual evidence of millimetric sizes typical of Micrometal micro-die-casting.

Long-term partnerships

We work with Italian and European measurement sensor manufacturers in long-term supply relationships based on technical collaboration and continuous quality improvement. Contact us to discuss your requirements.

How we engineer an instrumentation or sensor component

Sensor housings, instrument enclosures, flanges and brackets: here dimensions and their stability over time matter. ZP3 is the reference alloy precisely for dimensional stability; ZP5 is used when the part stays under load for long periods.

Hot-chamber die casting typically achieves ±0.05 mm directly from the die, depending on size and geometry; where tighter dimensions are needed, CNC finishing is added at our partners.

In the design we define with the customer the critical dimensions, the measuring datums and the sealing surfaces, so the control plan is born together with the drawing.

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

What tolerances can be achieved on a zamak sensor housing?

Typically ±0.05 mm directly from die casting, depending on size and geometry. For tighter dimensions, CNC finishing is added at our partners.

Does a zamak housing keep its dimensions over time?

Yes, ZP3 is the alloy with the best long-term dimensional stability; for parts under sustained load we assess ZP5.

Why use zamak for precision instrumentation?

Zamak die casting ensures hundredths-of-a-millimetre tolerances, dimensional repeatability and long-term stability — fundamental requirements for instrumentation.

What sensor components are made from zamak?

Protective enclosures, mounting brackets, connectors, heat sinks and chassis for measuring instruments and sensor devices.

Does zamak offer shielding for sensitive instruments?

Zamak provides excellent electromagnetic shielding, protecting internal circuits from external interference and ensuring accurate measurements.

Need zamak die cast components?

Upload your technical drawing and receive a quote within 24/48 hours.

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