Thin wall plastic mould technology is used wherever manufacturers need lightweight parts, fast cycles, and high-volume output. For Hengqi's buyers, the most important applications are food containers, takeaway lids, sauce cups, IML cups, drink cups, and compartment lunch boxes.
The opportunity is clear: reduce resin use and increase machine output. The risk is also clear: thin walls leave less room for poor flow balance, weak rims, uneven cooling, or unstable ejection. A thin wall plastic mould must be engineered around production reality, not only a 3D shape.
In food packaging, thin-wall parts often run below 1mm and may target around 0.3mm to 0.6mm depending on resin, capacity, and container design. At that thickness, the melt must fill the cavity quickly before it freezes. This is why resin flow, injection speed, gate design, venting, and machine matching all matter.
Buyers should not judge thin-wall mould capability only by a sample photo. The supplier should explain the target wall thickness, part weight, flow length, runner type, cooling concept, ejection method, and expected cycle time under a specific machine setup.
Thin wall food container moulds are used for round boxes, square boxes, soup containers, crisper boxes, sauce cups, and compartment meal trays. These products need rim strength, sealing fit, stack control, and stable demolding because they are packed, transported, and handled at high speed.
Cup and lid projects have similar demands. Coffee cup lid moulds need sealing accuracy and clean edges. IML cup moulds need label placement clearance and stable cup shape. Thin-wall drink cup moulds need enough stiffness for filling and stacking while keeping the cup weight competitive.
Lightweighting remains the strongest trend, but the best projects reduce material only after checking container function. A thinner part may need stronger ribs, a revised rim, better cooling, or a different resin grade to maintain real packaging performance.
Another trend is tighter integration with automation. Robot take-out, in-mold labeling, stacking systems, and downstream packing all influence mould design. If automation is added after the mould is finished, the buyer may face avoidable changes to the tool or production line.
Before ordering a thin wall plastic mould, buyers should confirm drawings, resin, cavity count, injection machine data, target cycle, wall thickness, part weight, lid or label requirements, and acceptance tests. For food packaging, sample testing should include stacking, sealing, leakage, drop handling, deformation, and cavity-to-cavity variation.
Hengqi can review thin-wall container projects around these production factors and connect the buyer to suitable product pages, including 1000ml round container moulds, 2oz sauce container moulds, 32oz soup container moulds, and IML cup moulds. Clear project data lets the mould design support ranking-critical buyer intent and actual manufacturing performance at the same time.
Ningbo 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.
