ALUYONIX Precision Die Casting
CASTING PROCESS METHODOLOGY

Hot Chamber & Cold Chamber Die Casting

Dedicated metallurgical processes tailored to metal melting points.

Process Metallurgy & Overview

Selecting between Hot Chamber and Cold Chamber depends fundamentally on the melting temperature and chemical reactivity of the casting alloy. We operate both specialized lines to provide the lowest cost-per-part.

Working Principle & Operational Steps

1Hot Chamber: Injection goose-neck is submerged directly in the molten zinc or magnesium bath. Instant cycle reset without external ladling.
2Cold Chamber: Molten aluminium (at 680°C+) is dosed into a separate shot chamber to prevent corrosive erosion of the injection hydraulics.

Technical Parameter Specifications

Clamping Force
Zinc Hot Chamber: 30T – 250T | Al Cold Chamber: 120T – 2500T
Wall Thickness
0.6 mm (Zinc) | 1.5 mm (Aluminium)
As-Cast Tolerance
±0.02 mm (Zinc) | ±0.05 mm (Aluminium)
Cycle Rate
Hot: 150 – 500 shots/hr | Cold: 30 – 90 shots/hr
Surface Finish
Zinc: Mirror Ra 0.8 µm | Al: Ra 2.0 µm
Primary Alloys
Zamak 3, Zamak 5

Ideal Applications

  • Hot Chamber: Zinc Zamak gears, precision lock cylinders, automotive door handles, micro fasteners
  • Cold Chamber: Aluminium automotive structural brackets, transmission covers, inverter cases

Key Advantages

  • Hot Chamber zinc offers 400+ shots/hr and zero secondary machining for micro threads
  • Cold Chamber aluminium offers highest strength-to-weight ratio for structural loads

Engineering Trade-offs

  • Hot Chamber cannot cast aluminium (aluminium attacks submerged steel mechanisms)
  • Cold Chamber has slightly longer cycle times due to ladling time

Evaluate Feasibility for Your Part in Hot & Cold Chamber

Submit your 3D STEP or PDF model for instant DFM analysis and tooling quote.

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