Qu'est-ce que le moulage sous vide à Singapour, et pourquoi est-ce important?

Si vous développez des prototypes ou des pièces en petits lots à Singapour, coulée sous vide (également appelé moulage d'uréthane) change la donne. Il utilise un vide pour aspirer la résine liquide dans des moules en silicone, créer des pièces de haute précision qui imitent les matériaux de qualité production, plus rapidement et moins cher que le moulage par injection. Pour les entreprises locales, ça coupe R&Temps D jusqu'à 50% and slashes tooling costs to 20-30% of traditional methods . Que vous soyez dans l'automobile, électronique, ou des dispositifs médicaux, it bridges the gap between prototypes and market-ready products.

How Vacuum Casting Works: A Step-by-Step Breakdown

The process is straightforward but requires precision—here’s how Singaporean manufacturers execute it:

1. Création de modèle principal

D'abord, a master model of your part is made using 3Impression D ou Usinage CNC. Singaporean shops like RP World often use 3D printing for complex designs, ensuring the master matches your CAD file exactly . The master is inspected for flaws before moving forward.

2. Fabrication de moules en silicone

The master is submerged in liquid silicone, which cures around it (typiquement 24-48 heures). Once set, the mold is cut into two halves, and the master is removed—leaving a cavity that mirrors your part. These molds last 10-20 utilise, en fonction de la complexité .

3. Coulée sous vide & Guérison

Résine (par ex., polyuréthane) is poured into the mold, which is then placed in a vacuum chamber to eliminate air bubbles (critical for clear or detailed parts). The mold goes into an oven for 3-4 hours of constant-temperature curing . Enfin, le moule est ouvert, and the part gets post-processed (peinture, marquage laser, etc.).

Exemple de cas: A global automation firm in Singapore struggled with CNC-machined impeller assemblies that failed underwater tests. RP World switched to vacuum casting: they 3D-printed a master, made a silicone mold, and cast parts that passed long-term underwater trials—cutting production time by half and becoming the client’s long-term supplier .

Key Advantages of Vacuum Casting for Singapore Businesses

Why choose this over 3D printing or injection molding? Here’s how it benefits local teams:

• Vitesse: Get 20 pièces en 15 days or less —ideal for tight R&D deadlines.
• Rentabilité: Silicone molds cost far less than steel/aluminum injection molds. Pour 100 parties, vacuum casting saves 30-60% contre. moulage par injection .
• Qualité: Parts have superior surface finish (smoother than injection molding) and capture fine details like textures or undercuts .
• Flexibilité: Utiliser 11+ resin types (par ex., heat-resistant for automotive, transparent for lenses) and add post-processing like screen printing.

Top Materials for Vacuum Casting in Singapore

Singaporean suppliers offer a wide range of resins to match your part’s needs. Here’s a quick guide:

Pro Tip: Jucheng Precision, a Singapore-certified (OIN 9001, IATF 16949) shop, recommends Hei-Cast 8400 for parts needing both strength and impact resistance .

2025 Trends Shaping Vacuum Casting in Singapore

The industry is evolving fast—here’s what local businesses need to know:

1. Automation & 24/7 Production

Shops like SM Metal Solutions are adding automated mold prep and part extraction, reducing human error and enabling round-the-clock production . This boosts output by 30% while cutting labor costs.

2. AI-Powered Optimization

AI systems now analyze casting cycles to predict mold maintenance and reduce waste. Par exemple, AI can spot resin flow issues early, assurer 99% of parts meet quality standards —critical for medical device makers.

3. Eco-Friendly Resins

With Singapore’s strict sustainability rules, suppliers are adopting recyclable resins that cut waste to 5-10% (contre. 20-30% for CNC machining) . Look for shops using bio-based polyurethanes.

How to Calculate Vacuum Casting Costs in Singapore

Costs depend on four factors—use this breakdown to budget:

1. Matériel (40-60% of total cost): PU resins cost SGD 20-50 par kg; high-temp resins go up to SGD 80/kg .
2. Mold Fees: A small mold (10x10cm) costs SGD 300-500; large/complex molds reach SGD 1,500 .
3. Volume: Unit costs drop 40% when producing 100 contre. 10 parties (spreads mold costs).
4. Post-traitement: Painting adds SGD 5-15 par pièce; laser marking is SGD 2-8 par pièce .

Exemple: 50 ABS-like parts (10x5cm) with painting: ~SGD 1,800 total (moule: SGD 400, matériel: SGD 800, labor/post-processing: SGD 600).

Yigu Technology’s Perspective

“Vacuum casting is the unsung hero of Singapore’s manufacturing ecosystem. We’ve seen clients cut R&D timelines by 60% using this method—especially in electronics, where fast prototyping wins markets. The key is partnering with shops that combine ISO certifications with AI tools: they deliver consistent quality while keeping costs low. As sustainability rules tighten, we’re advising clients to prioritize eco-resins—they don’t just meet regulations but also appeal to green-conscious buyers. Pour les petits lots (10-500 parties), vacuum casting beats injection molding every time.”

FAQ: Vacuum Casting Singapore

Q: How long does vacuum casting take in Singapore?

UN: 7-10 days for simple parts; complex designs (avec post-traitement) take 12-15 jours .

Q: Can vacuum casting make metal parts?

UN: No—stick to plastics/rubbers. For metals, Singaporean shops use die casting (par ex., SM Metal Solutions) .

Q: Is vacuum casting better than 3D printing?

UN: For functional prototypes or small batches, yes—parts have better material strength and surface finish . 3D printing is better for 1-5 parties.

Q: Which industries use vacuum casting most in Singapore?

UN: Automobile (roues à aubes, logements), électronique grand public (coques de téléphone, appareils portables), et médical (device enclosures) .