Our Multi-Stage Quality Control Process
Every blow mould manufactured by Ultra Mould undergoes a strict multi-stage quality inspection before leaving our Ahmedabad factory. No mould is dispatched without passing all quality checkpoints. This is not a claim — it is a documented process with records kept for every mould we supply.
- Stage 1 — Material inspection: Steel hardness verified on raw material receipt. Certificate of mill test report obtained from steel supplier.
- Stage 2 — Machining inspection: Cavity dimensions verified by CMM (coordinate measuring machine) after CNC machining. Tolerance ±0.01mm.
- Stage 3 — Surface finish inspection: Cavity surface measured for Ra (roughness average). Target Ra 0.4–0.8 µm for PET bottle moulds.
- Stage 4 — Cooling circuit test: All cooling water channels pressure-tested at 10 bar. No leaks permitted.
- Stage 5 — Neck finish gauge check: Thread profile verified with certified go/no-go gauges calibrated per BIS standards.
- Stage 6 — Trial blow run: Mould installed on blow moulding machine. Sample bottles produced. Weight, dimensions, and appearance verified.
- Stage 7 — Final dimensional inspection: Blown bottle measured against approved drawing. Report sent to customer before dispatch.
CNC Precision — The Foundation of Quality
Ultra Mould uses CNC vertical machining centres (VMC) and CNC turning centres for all cavity machining. No manual filing, no hand-fitting. Every surface that matters is machined to dimension — which is why our moulds produce bottles with consistent wall thickness, accurate weight, and correct neck finish from cavity to cavity across millions of production cycles.
Quality Documentation We Provide
- Material test certificate (MTC) — steel grade, hardness, chemical composition
- Dimensional inspection report — all critical cavity dimensions vs specification
- Surface finish record — Ra measurement on cavity surfaces
- Cooling circuit pressure test certificate
- Trial run report — blown bottle measurements and weight
- Mould maintenance guide — recommended maintenance intervals and procedures
Quality for Export Buyers — UAE, Africa, Southeast Asia
International buyers in UAE, Saudi Arabia, Africa, and Southeast Asia have stricter import quality expectations than many domestic markets. Ultra Mould's export quality documentation package satisfies the requirements of beverage brand technical teams, food safety auditors, and packaging quality managers across these markets. Our 10+ year export track record to 20+ countries is our quality testimonial.
⚠️ We do not supply moulds for Sidel, Krones, Nissei ASB, Bekum, or Kautex machines.
Get Quality-Certified Blow Moulds from Ultra Mould Ahmedabad
CNC precision. Multi-stage QC. Complete documentation. Trial run included. 24-hour quote.