Product Description
Our factory provides plastic cap mold development and related plastic cap production support for packaging manufacturers, liquid product brands, and overseas buyers. A mold determines how stable the cap will be during long-term production. It affects cap size, thread accuracy, sealing fit, appearance, injection cycle, and defect control. For buyers who want to build a reliable plastic cap supply chain, choosing the right plastic cap mold partner is one of the most important steps before mass production.
We have practical experience in developing plastic caps for liquid containers, including patented double-opening bottle caps, vented caps, return-flow caps, and customized structures for plastic bottles, glass bottles, and metal cans. When developing a plastic cap mold, we consider not only the drawing but also the real use environment: liquid type, container mouth, filling process, user opening habit, and transportation risk. This makes the final cap more suitable for actual packaging instead of remaining only a mold sample.
Key Specifications
| Mold type | Plastic cap injection mold |
| Applicable material | PP, PE, and other plastic materials |
| Supported products | Bottle caps, double-opening caps, vented caps, return-flow caps |
| Development basis | Drawings, prototypes, cap samples, container samples |
| Customization | Size, cavity, thread, sealing structure, cap function |
| Sample support | Available before mass production |
| Custom development period | Around 30-90 days |
| Mass production | Available after sample approval |
| Inspection | Product testing and 100% inspection before packing |

Application Areas
Bottle Cap Production
Suitable for factories requiring molds for plastic cap injection molding and repeated production.
Liquid Packaging Development
Used for edible oil, cleaning liquid, chemical liquid, and daily care liquid packaging caps.
Custom Cap Projects
Suitable for unique cap structures requiring mold development from drawings or prototypes.
Packaging Supply Chains
Used by packaging companies and distributors that need long-term plastic cap production support.
Customization Capability
We support OEM processing and can produce based on technical drawings or prototypes. For plastic cap mold projects, we can discuss structural feasibility, injection molding requirements, material selection, cap function, and production automation before starting development. This helps reduce the risk of repeated changes after mold opening.
Custom sample development usually takes 30-90 days depending on product complexity and automation level. We can provide samples before mass production so customers can test cap fit, sealing, surface, and actual container matching. For one MOQ order, different colors or models can be mixed when production conditions allow.
Factory Strength
Our factory was established in 2017, but the core team has worked in bottle cap development since 2010. Over the years, we have developed patented cap products from the first generation to the eighth generation and obtained 6 bottle cap-related patents. This background gives us stronger understanding of how mold structure affects cap function in real liquid packaging.
We also operate self-improved automatic production lines that support product taking-out, automatic inspection, defective product rejection, combination, and packing. For buyers, this means the mold development and mass production process can be connected more smoothly under one production system.
Payment Terms
Our standard trade term is FOB. For regular orders, production starts after 50% deposit, and shipment is arranged after the remaining 50% balance is paid. Custom-made products follow the same 50% deposit and 50% balance payment process. Large-volume orders can receive discounts according to order size and project conditions.
We accept common international currencies. For overseas agents and long-term buyers, this payment structure keeps the cooperation clear and helps both sides control production planning, material purchasing, and shipment timing.
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