China Custom Plastic Injection Molding Manufacturer

Our Advantages

AAA MOULD injection molds boast core advantages of scientific material selection for longevity, precision manufacturing for accuracy control, and full-process customized services, providing stable and efficient custom mold solutions for multiple industries.

01

Scientific Material Selection

We strictly adhere to the principle of "defining performance by requirements and selecting materials by performance". Complete material certification is provided, and multiple methods including spectral analysis and hardness testing are adopted to ensure materials meet standards, thus guaranteeing mold service life and stability from the source.
02

Precision Manufacturing

Adopting full-process precision machining technology and advanced testing equipment, we strictly control key links such as mold design, machining, assembly and trial molding. This ensures accurate mold dimensions, stable structure and smooth opening-closing, reduces trial molding times and shortens production cycles.
03

Customized Services

Equipped with a professional design and technical team, we can provide end-to-end customized services covering mold scheme design, material selection, manufacturing, trial molding & delivery and after-sales maintenance according to customers' product drawings, samples or requirements. We respond to customer needs promptly and solve various mold problems during production.
04

Product Quality Requirements

Focusing on product precision, surface finish (e.g. mirror finish, standard texture) and whether it contacts corrosive components, we determine the material's polishing performance and corrosion resistance requirements accordingly.

Mold Materials

We carefully select high-quality mold steels worldwide, covering four major categories: general-purpose, high-precision polishing, corrosion-resistant, and wear & high-temperature resistant types, fully meeting the production needs of different industries.

P20 Steel

Features: Delivered in a pre-hardened state, ready for direct machining without secondary heat treatment; excellent machinability, moderate polishability, medium cost and high cost performance.

Applications: Molds for ordinary engineering plastic products with low-to-medium complexity and small-to-medium batch production (100,000-300,000 mold shots), such as daily necessities, home appliance parts and automotive interior parts molds made of ABS, PP and PE.

718H Steel

Features: An improved version of P20 steel, nickel-added to optimize material purity and performance uniformity; delivered hardness of 35-40 HRC, stronger deformation resistance, better polishability and longer service life than P20 steel.

Applications: Medium-to-large molds requiring high precision and long service life (300,000-500,000 mold shots); compatible with reinforced plastics like PA+glass fiber and PC/ABS, suitable for molds of precision electronic components, automotive functional parts and high-gloss home appliance panels.

Representative Material: NAK80

Features: Pre-hardened mirror mold steel with an outgoing hardness of 40-42 HRC, machinable without heat treatment to avoid dimensional deformation caused by heat treatment; excellent mirror polishing performance, low surface roughness, and capable of achieving optical-grade mirror finish.

Applications: Molds for high-transparency and high-gloss plastic products, such as molds for optical components (camera lenses, light guide plates), cosmetic packaging, and automotive high-gloss grilles made of PC and PMMA (acrylic). The service life of the mold can reach 500,000-1,000,000 mold shots.

Representative Material: S136

Features: High chromium content enables a dense chromium oxide protective film on the surface, providing excellent corrosion resistance. It can withstand corrosive media like PVC, flame-retardant materials and acidic plastics for a long time, without additional plating even in humid environments; excellent polishability, with a hardness of 48-52 HRC after heat treatment and good wear resistance.

Applications: Molds for harsh scenarios such as medical and food packaging, applicable to syringe molds, vial molds, food container molds and optical lens molds. The mold service life exceeds 500,000-1,000,000 mold shots, and is far longer than ordinary mold steel in corrosive environments.

Representative Material: H13

Features: Hot work mold steel with a hardness of 48-52 HRC after heat treatment, excellent heat resistance and thermal fatigue resistance. It can work continuously at 500-600℃, and withstand up to 650℃ in short term; high wear resistance, suitable for rapid cycle production and high-temperature engineering plastic processing.

Applications: Molds for high-temperature plastics such as PEEK, LCP and PPS, as well as high-strength filled plastics like PA+glass fiber and PBT+glass fiber. Widely used in automotive engine cover molds, battery case molds and medical device molds, meeting the long-life production demand of over 1,000,000 mold shots.

AAA MOULD: High-Precision Moulds + Flexible Services

Full-process Customization

One-stop service covering design, manufacturing and mass production. Supporting multiple types of moulds such as injection moulds and die-casting moulds, and accurately meeting the complex needs of various industries.
High-precision Mould Manufacturing

Building precision moulds with advanced processing equipment, implementing strict tolerance control, selecting high-quality mould steel and matching professional heat treatment processes. The moulds feature a long service life, ensuring long-term stable production.
Rigorous Quality Control & Delivery

Full-process quality inspection and compliance with standard certifications. Standard moulds are delivered within 25–45 days, satisfying the rapid response needs of foreign trade orders.
Foreign Trade-adapted Services

With in-depth experience in the global market, we are well-versed in international standards and trade terms. We provide cross-border logistics and customs clearance support, with a 24-hour after-sales response service.
Outstanding Cost Advantages

Optimizing mould structure and production processes to reduce comprehensive costs by 15%–25%. Supporting small-batch customization and flexible cooperation models.

Applications of Injection Molding in Related Industries

Injection molding technology is widely used in various fields, providing support for the production of diverse components. Below is a categorized overview of its core related industries:

Automotive Industry

A key application field of injection molding technology, covering automotive interior parts, exterior parts, and functional components.

Applied Products: Instrument panel components, door panel trim, automotive bumpers, wire harness sheaths, plastic parts around engines (e.g., oil pipe housings).
Electronics & Electrical Industry

Crucial for the manufacturing of electronic device casings, structural parts, and insulating components.

Applied Products: Mobile phone casings, computer host enclosures, remote control housings, LED lamp covers, circuit board insulating parts.

Medical Device Industry

Relies on high-precision injection molding to produce sterile components with good biocompatibility (usually using engineering plastics or specialty plastics).

Applied Products: Medical syringe plungers, sampling tube housings, surgical instrument handles, transparent covers for diagnostic equipment.
Consumer Goods Industry

The most widely used field of injection molding, mainly focusing on daily-use plastic products with simple to moderately complex structures.

Applied Products: Plastic food storage containers, disposable tableware, toy housings (e.g., building blocks), household appliance casings (e.g., rice cooker lids).
Packaging Industry

This technology not only meets the packaging requirements of different fields such as food, industry, and logistics but also aligns with the lightweight trend of "green packaging".

Applied Products: Plastic bottle caps, food packaging films (products of injection-stretch blow molding derivative process), cosmetic container bodies.
Industrial Machinery Industry

In the mechanical field, wear-resistant and high-strength structural components require wear resistance, strong load-bearing capacity, high precision, and cost-effectiveness.

Applied Products: Gearbox housings, bearing cages, plastic handles for industrial tools, protective covers for mechanical components.

Frequently Asked Questions (FAQ) about Injection Molding Industry

What types of plastic products are injection molds suitable for?

Injection molds have a wide application range, covering daily necessities, electronic components, auto parts, etc. Most thermoplastic materials can be mass-molded by injection molds.

What is the general service life of an injection mold?

No fixed service life. Affected by material, precision, product material and maintenance. Good steel and proper maintenance ensure long-term mass production.

How long does it take to customize an injection mold?

Depends on product complexity, mold structure and manufacturer's capacity. Simple molds take less time; complex ones take longer. Delivery time is confirmed after design communication.

What factors to consider when choosing injection mold materials?

Key factors: product material, precision/surface requirements, production volume. Also consider processing difficulty and cost for optimal cost-effectiveness.

Common problems in injection mold production and solutions?

Common problems: shortage, shrinkage, burrs, deformation. Solve by optimizing mold structure (e.g., gate, cooling system) and adjusting process parameters.

What information should customers provide for customization?

Provide 3D/2D drawings, product material, expected output, surface requirements and special functional needs. Detailed info ensures accurate design.

Why do injection molds wear and how to reduce it?

Wear causes: plastic erosion, part friction, demolding friction. Reduce by using wear-resistant materials, standardizing operation and regular maintenance.