Italian Form srl

Despite a short work break, these days of heavy rain here in northern Italy have made us think about thermal swings in sealing systems (aka, gaskets).

❓Did you know that the choice of compound directly influences the selection of steel, surface treatments, and the final cost of the mold?

🧐 For example, compounds that include abrasive fillers or chemical additives require harder steels and wear-resistant surface treatments (e.g., nitriding, PVD) and finishes with varying degrees of sheen.

🔥Likewise, compounds that must withstand high temperatures demand materials with thermal stability and impeccable tolerance control, which is sometimes achieved by adding cold-runner blocks (CRB).

In short: greater compound complexity = more processing steps = increased lead times and costs.

🎯To fully meet production targets, nothing can be left to chance — which is why you should rely on industry experts.

For more information or a technical consultation, Italian Form is always at your disposal. 💪

BELLOWS - A VERSATILE ALLY 🔰🏎🏭
Rubber bellows play a critical role in automotive, oil & gas, medical and industrial systems — from expansion joints and actuators to protective gaiters that absorb movement, isolate vibration, and seal components.

HOW IT'S MADE - MOLD-MAKING CHALLANGES
For mold makers, machining main steel plates and male inserts for high-quality, large-scale bellows production requires, other than utmost care to design, strict control of tolerances, choice of the right hardened tool steels, lots of machining technologies, such as:
- precision CNC finishing,
- surface polishing and stress‑relief to avoid distortion;
- EDM and electrode strategy for, e.g., undercuts
- Assembly alignment to determine tool life and part performance.

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