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ZHONGYUE MOULD, based in Huangyan, Taizhou—China's Mould Capital—is a professional Plastic Luggage Mould (Trolley Case Mold) manufacturer. We design and build custom injection molds for hard-shell suitcase shells (ABS, PC, ABS+PC blend, PP), covering popular sizes such as 20″ carry-on, 24″ medium, and 28″ check-in trolleys, as well as matching front pocket shells, corner protectors, and trolley bases.
Large thin-wall shells demand more than just a big mold—they require scientific molding principles applied from day one.
Luggage shells are typically thin-walled (2.5–3.5mm). We run MoldFlow analysis to determine optimal gate location (usually edge or hot-tip gate), fill pattern, and potential weld-line positions—preventing short shots and cosmetic defects on visible surfaces.
The suitcase shell IS the brand face. Our cavity can be mirror polished (SPI A1–A3) for high-gloss finish or chemically textured (VDI 3400 / leather grain / carbon-fiber pattern). Hard chrome plating or nitriding is available to extend surface life and resist wear.
To minimize cycle time on large-format molds, we design multi-loop baffled cooling channels in both core and cavity. BeCu (Beryllium Copper) inserts are used at deep ribs or corners where water lines cannot reach, ensuring even heat extraction and reducing warpage.
Due to the large projected area, we equip molds with stripper plates, multi-ejector pins with balanced force, or air-assist ejection, preventing shell distortion during knockout.
YUDO / HASCO / Master hot runner systems with sequential valve gates (SVG) are available to reduce material waste and improve surface quality on monochrome or two-tone shells.
| Component | Design Focus |
|---|---|
| Suitcase Shell (Top/Bottom) | Thin-wall filling, gloss/texture, warp control, 1-cavity |
| Front Pocket / Lid Shell | Mini-shell with integrated hinge or lock recess |
| Corner Guard / Trolley Base | Reinforced ribs, insert-molded metal plate option |
| Matching Size Sets | Shared mold base with interchangeable cavity inserts (cost-saving) |
Taizhou Zhongyue Mould Co., Ltd. manufactures Plastic Luggage Moulds for hard-shell suitcases, carry-on luggage, travel trolley cases, business suitcases, and lightweight travel storage cases.
We optimize shell structure design, rib reinforcement, and material flow to improve impact absorption performance, ensuring the luggage can withstand drops and pressure during transport.
Yes. We reduce unnecessary material thickness while maintaining structural strength through precise rib layout and optimized wall thickness control.
Surface defects are often caused by unstable filling or poor cooling balance. We improve this through optimized gate design, mold flow analysis, and uniform cooling systems.
Yes. We can design mold series solutions for different luggage sizes such as 20-inch, 24-inch, and 28-inch models while maintaining consistent design structure.
We control dimensional accuracy in wheel mounting points and handle slots to ensure precise assembly and stable performance in real travel conditions.
Backed by 50+ team numbers & 20+ CNC machines, ZHONGYUE provides full DFM reports, T1 trial with sample/video, and spare parts support worldwide.
Contact ZHONGYUE MOULD today for a customized quotation and mold design proposal for your Luggage Case / Trolley Suitcase Mould project.
Request a technical consultation and competitive quote for hard-shell suitcase molds or trolley case tooling.
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