

This 6CAV round lid mould is built for meal-box and takeaway food packaging where repeatable seal fit and easy closure behavior are critical for customer satisfaction.
The mould is tuned around matching container geometry to reduce leakage risk while keeping high-volume production stable on fast-cycle lines.
Key technical checks include container-rim tolerance, closing force target, storage/transport leakage requirements and resin shrinkage behavior.
These inputs guide runner type, venting strategy, cooling channel arrangement and steel selection so the mould holds dimension and sealing quality over long production campaigns.
Yes. Lid diameter, sealing rim profile and fit tolerance can be customized around your existing container drawings or samples.
A cycle target within 6 seconds is typical on a suitable 350T high-speed line, with final speed dependent on resin flow, part weight and cooling efficiency.
Yes. Sealing profile geometry, venting and tolerance strategy can be adjusted during design to improve anti-leak performance across filling, transport and storage.
Send the product drawing, sample weight, cavity target, machine tonnage, material, and expected cycle time. Hengqi can review the tooling structure and reply with a practical proposal for production.
Request a Mold QuoteNingbo Hengqi Precision Mould Co., Ltd. is professional China Plastic Injection Mould Manufacturers and custom Plastic Injection Mould factory, engaged in the development and manufacture of thin-wall packaging moulds. Our company has complete manufacturing equipment, scientific quality management system, rich practical experience in mould and hot runner production, combined with professional system design, using high-precision high-speed machining centers to achieve mold processing high standards. Hengqi Mould is in the leading position in the field of thin-wall injection molds in China. It produces thousands of sets of PP lunch boxes, cups and in-mold labeling system molds with a wall thickness of 0.35-0.45MM each year, which are supplied to the domestic market and exported to overseas. Hengqi Mould adheres to the spirit of continuous innovation and development of precision moulds.
In 2012, Hengqi Mould Factory was established.
In 2016, Hengqi Enterprise established Tianjin factory.
In 2017, Hengqi officially changed from individual to company.
In 2019, Hengqi established Chengdu branch and Betterfork cutlery department.
In 2024, Hengqi continues to expand international markets.