Luggage mould

When sourcing luggage moulds, the steel grade is the most critical factor for durability. High-quality moulds typically use P20, 718, or S136 stainless steel to ensure a long mould life (often exceeding 500,000 to 1,000,000 shots). Additionally, you must specify the cavity number (single or multi-cavity) based on your production volume and ensure the cooling system design is optimized to reduce cycle times and prevent warping of the plastic shells.

You must provide the supplier with your machine's technical parameters, including the clamping force, tie-bar spacing, and maximum opening stroke. For injection moulds, confirm the runner system (Hot Runner vs. Cold Runner); Hot Runners (like Yudo or Mold-Master) are preferred for high-efficiency production as they reduce material waste. Always request 2D/3D CAD drawings (STEP or IGES format) for technical verification before production begins.

Prioritize manufacturers with ISO 9001:2015 certification for quality management. For the final luggage product to meet international standards, the mould must be designed to produce shells that pass drop tests, walking tests (wheel durability), and telescopic handle strength tests. Ensure the manufacturer provides a Steel Certificate and Heat Treatment Report to verify the authenticity and hardness of the materials used.

Yes, professional suppliers offer interchangeable inserts for brand logos, allowing you to use one mould base for multiple private labels. For surface aesthetics, specify the texture standard (e.g., MT or VDI). Common finishes for luggage include matte, glossy, or diamond textures, which are achieved through chemical etching or laser engraving on the mould cavity.

Always insist on a T1 (First Trial) sample before final shipment. Request a video of the mould running in the machine and a dimension inspection report of the produced sample. For high-value orders, consider hiring a third-party inspection agency to visit the factory in China to verify the mould's operation and steel hardness.

Use a staged payment structure: typically 30%-40% deposit to start design, 30%-40% after T1 sample approval, and the remaining balance after final inspection but before shipment. For maximum security, conduct transactions through Made-in-China.com's secured payment services, which provide escrow-like protection and dispute resolution.

Moulds are heavy and require seaworthy wooden box packaging (fumigated) with anti-rust oil coating and vacuum plastic wrapping. Ensure the supplier provides the correct HS Code (typically 848071 for plastic injection moulds) to avoid customs delays. For shipping to the US or EU, clarify the Incoterms (FOB or CIF) and ensure the Mould Manual and Maintenance Guide are included in the shipment.

Before sharing detailed 3D files, have the supplier sign a Non-Disclosure Agreement (NDA). Choose reputable manufacturers on Made-in-China.com who have a history of working with international brands, as they are more likely to respect IP rights to maintain their platform rating and reputation.