Application Scenarios of Plastic Moulds

Plastic moulds are the core equipment for the injection molding and forming of plastic products. Featuring high forming efficiency, scalable mass production and strong customized adaptability, they are applied in almost all manufacturing sectors including automotive, consumer electronics, healthcare, packaging, and household appliances & home furnishing. Different scenarios impose distinctly different requirements on the precision, specification, material and structural design of plastic moulds. The automotive industry is their largest demand side, while the consumer electronics and emerging high-end manufacturing sectors are driving the technological upgrading of ultra-precision and customized plastic moulds. Below are the segmented core application scenarios, along with the corresponding mould requirements and typical products:

Automotive Industry (Including New Energy Vehicles)

The application of plastic moulds in the automotive sector accounts for over 35% of the total, and this sector is also the core driver for the upgrading of moulds towards large-scale, integration and high precision. The popularization of new energy vehicles has further expanded their application boundaries, with the penetration rate of plastic components in complete vehicles reaching over 45%.

• Core Products: Interior trims (instrument panels, seat accessories, door panels, central control housings), exterior trims (bumpers, grilles, rearview mirror housings), structural parts (chassis guards, wire harness fasteners), and new energy-specific parts (battery pack housings/accessories, plastic components of charging piles, motor insulation parts, in-vehicle screen brackets);
• Mould Requirements: Large-scale, high rigidity and wear resistance. Some structural parts require integrated injection moulds, and new energy-related moulds must meet the requirements for temperature resistance, flame retardancy and sealing performance, with precision controlled at the 0.01mm level.

Consumer Electronics Industry

Consumer electronics is a core application scenario for ultra-precision plastic moulds. The demands for miniaturization, thinness and high appearance of terminal products have driven the development of moulds towards micron-level precision, high finish and multi-cavity moulds, making it one of the sectors with the highest technological content for moulds.

• Core Products: Mobile phone/tablet housings, earphone (TWS/head-mounted) accessories, smart wearable components (watch cases, wristband straps, smart glasses brackets), computer keyboard/mouse housings, and injection-molded parts for charger/data cable plugs;
• Mould Requirements: Ultra-precision (precision ≤ 0.005mm), high gloss and mark-free, and multi-cavity (to improve mass production efficiency). Some high-gloss products require high-gloss injection moulds, and micro-components adopt mould designs with pin-point gates and fine nozzles.

Healthcare Industry

The healthcare sector imposes stringent requirements for sterility, high purity and chemical resistance of plastic products, and the corresponding plastic moulds must comply with medical-grade production standards, making it one of the scenarios with the highest requirements for mould customization and quality control.

• Core Products: Disposable medical consumables (syringes, infusion set accessories, blood collection needle housings), diagnostic and treatment equipment components (ultrasound/monitor housings, plastic parts of medical trolleys), medical packaging (sterile blister boxes), and housings of small medical devices;
• Mould Requirements: The mould cavity is made of medical-grade stainless steel with no dead corners for easy cleaning and disinfection, high forming precision and no flash. Some products require food/medical-grade injection moulds that comply with the ISO 13485 medical device production standard.

Packaging Industry

Packaging is the most widely used and in-demand civil scenario for plastic moulds, with the core requirements of low cost, high production efficiency and multi-cavity moulds, and the moulds have a relatively high degree of standardization.

• Core Products: Food/daily chemical packaging (plastic preforms, bottle caps, lunch boxes, crisper boxes), express packaging (plastic strapping buckles, express bag sealing parts), and industrial packaging (plastic turnover boxes, component boxes);
• Mould Requirements: Multi-cavity (e.g., bottle cap moulds can have 64/128 cavities), rapid forming and easy mould change. Some food packaging must meet the requirements for food-grade material contact, and preform moulds need to be adapted for high concentricity and thin-wall forming.

Household Appliances & Home Furnishing Industry

Household appliances and home furnishing are rigid civil demand scenarios. Plastic moulds here are characterized by high cost performance and diverse specifications, catering to both large-scale thin-wall forming and mass production of small accessories, covering the full range of products from large household appliances to small home furnishing items.

• Core Products: Large household appliance components (refrigerator inner liners, washing machine inner drum accessories, air conditioner housings/guide vanes, TV bases), small household appliance housings (rice cookers, microwave ovens, hair dryer accessories), and home plastic parts (table and chair legs, storage boxes, wardrobe handles, kitchen and bathroom waterproof accessories);
• Mould Requirements: Large household appliances require large-scale thin-wall injection moulds, while small home furnishing parts are mainly multi-cavity moulds. Some kitchen and bathroom accessories must meet the requirements for temperature resistance, water resistance and anti-aging.

Industrial Manufacturing Supporting Sector

This sector provides plastic accessories for industrial production and equipment operation and maintenance. The moulds here focus on customization and resistance to harsh working conditions, adapting to the industrial demands for temperature resistance, chemical corrosion resistance and high strength.

• Core Products: Industrial control equipment housings (distribution cabinets, plastic housings of sensors), industrial pipelines/fittings (plastic elbows, quick connectors), instrument and meter accessories (flowmeter, pressure gauge housings), and logistics and warehousing accessories (plastic pallets, shelf buckles);
• Mould Requirements: The mould cavity is resistant to high temperature and chemical corrosion, and the rigidity of some structural parts needs to be enhanced to adapt to the forming of customized non-standard parts.

Emerging High-end Manufacturing Sectors (High-growth Scenarios)

With the development of humanoid robots, AR/VR, new energy energy storage, photovoltaic and other sectors, these fields have become the new core growth poles for plastic moulds. Such scenarios impose higher requirements on the customized composite structure and adaptability to new materials of moulds, which are also the key directions for the technological upgrading of mould enterprises.

• Core Products: Humanoid robots (joint flexible accessories, body housings, sensor fasteners), AR/VR (head-mounted display housings, handle components, optical accessory brackets), new energy energy storage (plastic guard plates of energy storage cabinets, plastic parts of photovoltaic supports, energy storage battery accessories), and UAVs (fuselage housings, propeller accessories);
• Mould Requirements: Highly customized and composite structural design, adapted to new materials such as bio-based plastics and degradable plastics. Some precision components need to be combined with the 3D printing conformal cooling channel mould technology to improve forming efficiency.