China Plastic Injection Mould Manufacturers Suppliers Factory

Your Professional Plastic Injection Mould Supplier

Qingdao Hailong Machinery Group Co., Ltd., is a national high-tech manufacturer specializing in automotive dies, stamping parts, fixtures, jigs, vehicle cabs, truck bodies, and special vehicles. Our products are widely used in automotive OEM, heavy industry, and transport equipment markets across Europe, America, the Middle East, Japan, and South Korea.

Full In-House Production Chain

We cover the full process from mold design, stamping, welding, coating to final assembly, ensuring stable quality and delivery control.

Strong Engineering Capability

With experienced technicians and advanced R&D systems, we provide precise design, process optimization, and technical support for complex projects.

Advanced Equipment

We operate large CNC machines, stamping lines, laser cutting systems, and over 50 testing devices to ensure accuracy and product reliability.

Certified Quality System

We are certified with IATF 16949, ISO9001, ISO14001, and ISO45001, ensuring compliance with global automotive and industrial standards.

Two Plate Molds
Automotive Injection Two-plate Mold | Automotive-grade Efficient Molding · Precision Demolding · Mass Production Adaptation. Core Position: An exclusive two-plate mold solution customized for
Three Plate Molds
Automotive Injection Three-plate Mold | Automotive-grade Precision Molding · Gate-free · Accurate Adaptation. Core Position: An exclusive three-plate mold solution customized for small precision
Hot Runner Molds
Injection Molding Hot Runner Mold | Multi-industry Efficient Molding · Gate-free · Mass Stability. Core Position: A batch injection molding solution covering automotive, electronics, medical,
Two Color Injection Mold
Two-color Injection Mold | Multi-material Integrated Molding · Efficient & Precise · Multi-industry Adaptation. Core Position: A two-color/multi-color injection molding solution covering automotive,
Stack Molds
Stack Injection Mold | High-capacity Multi-layer Molding · Space Optimization · Multi-industry Adaptation. Core Position: A high-volume injection molding solution covering packaging, electronics,
Automotive Injection Mold
Automotive Injection Mold | Automotive-grade Full Range · Precision Molding · Mass Production Adaptation. Core Position: A comprehensive solution customized for full-scenario injection-molded

Specification

Hot Runner System	Dual independent temperature control, 1-16 gates/color, valve pin response ≤0.05s
Temperature Control Precision	Single-zone ±0.3℃-±0.5℃, two-color temperature difference ≤±1℃
Material Compatibility	PP/ABS/PC/TPU/TPE/PA+GF, etc. (Temperature resistance -40℃~200℃)
Precision Level	High Precision ±0.01mm, Ultra-high Precision ±0.005mm
Molding Colors	2-4 colors optional, supporting soft-hard material combinations
Production Efficiency	8-60 pieces/minute
Service Life	Mold Body ≥500,000 cycles, Hot Runner System ≥800,000 cycles

Advantages of Plastic Injection Mould

High precision

The plastic injection moulding process is capable of producing complex and intricate parts with high precision and accuracy. This makes it highly suitable for manufacturing parts that require tight tolerances and exact specifications.

High efficiency

The plastic injection moulding process is highly efficient and can produce large volumes of parts in a short amount of time. This makes it ideal for mass production applications where time and cost are critical.

Versatility

The plastic injection moulding process can be used to manufacture a wide range of parts in different shapes, sizes, and colors. This makes it highly versatile and adaptable to meet different manufacturing needs.

Cost-effective

The plastic injection moulding process can be cost-effective for the production of high-volume parts. This is because it is a highly automated process that requires little manual labor, reducing labor costs.

Applications of Plastic Injection Mould

Consumer Products Manufacturing: Household items such as water pipes, food containers, water bottles, electric kettles, pots, toy cars, plastic vases, decorative lights, etc.

Automotive Industry: Production of plastic components for cars, such as differential housings, interior control panels, and exterior body parts.

Medical Field: Manufacturing of medical products like syringes, tubing, medicine bottle caps, and medical cushions.

Electronics Industry: Production of plastic casings and components for electronic products such as mobile phones, tablets, computers, and household electronic devices.

Food And Beverage Industry: Manufacturing plastic products for food and beverage packaging, such as food containers, water bottles, and food storage bags.

Construction Industry: Production of plastic products used in construction, such as drainage pipes, water pipes, and insulation materials.

Packaging Industry: Manufacturing plastic products used in packaging, such as non-woven bags, product containers, and plastic packaging materials.

Materials Suitable for Plastic Injection Mould

Polypropylene (PP)

Polypropylene (PP) is one of the most popular materials for injection molding because of its moldability. It is versatile, offers a wide array of uses, and has various unique properties that make it an attractive option.

Polycarbonate (PC)

Polycarbonate (PC) is one of the strongest, most durable materials, which makes it ideal for face shields, visors, or safety glasses. It is a naturally transparent amorphous thermoplastic, which means it remains transparent even if color is added, similar to glass.

Polylactic Acid (PLA)

Polylactic Acid (PLA) is a bio-degradable plastic that is manufactured out of plant-based materials, like corn starch or sugar cane. That’s why it is known as “the green plastic” or “bioplastic”. If you add in a filament recycler, you’re about as green as you can get.

Acrylonitrile Butadiene Styrene (ABS)

Acrylonitrile Butadiene Styrene (ABS) is an extremely popular middle-of-the-road injection molding material due to its balanced combination of mechanical toughness, wide temperature range, good dimensional stability, chemical resistance, electrical insulating properties, and ease of fabrication.

Polyethylene (PE)

Polyethylene (PE) injection molding material is the most popular and commonly used plastic in the world, used in shopping bags, toys, garbage cans, and shampoo bottles. It is a lightweight thermoplastic material that has high chemical resistance, elasticity, and electrical insulating properties.

Polyamide (PA)

Polyamide (PA), also known as nylon, is a semi-crystalline polymer with a good range of properties. It is tough and has a high melting temperature, good wear, and chemical resistance, so it is a good option for strong mechanical parts, such as bushings, gears, and bearings.

Precautions for Using Plastic Injection Mould

Inspect all aspects of the injection mold, including runners, cavities, gates, plates, and sprues regularly for early identification of potential problems.

Use compressed air to remove any unwanted materials, such as dust, from the mold.

Clean all mold components using a non-toxic solvent.

Add lubrication, and in most cases, rust preventative to the injection mold.

Look over hot runners and water lines for potential issues since these are often the cause of mold performance problems. Water lines should be flushed and drained to remove unwanted moisture.

When storing an injection mold, the mold needs to be completely dry. Plates should be separated, the system properly cleaned and lubricated, and components, such as pins, or springs, tightened or replaced. Ensuring the mold returns to service quickly when needed.

Ordering Process

Inquiry - quotation - communication - order confirming - deposit payment - production - testing and debugging - balance payment - packing - delivery - customer receiving - after service.

Packaging and Shipping

Packaging	Wrapped with anti - rust paper, bubble film, and packed in export cartons or wooden cases.
Shipping	Shipping by sea, by air, by express are acceptable. According to your requirements.

Our Factory

Our Certificates

IATF 16949, ISO9001, ENVIRONMENTAL MANAGEMENT SYSTEM CERTIFICATION, NSYSTEM CERTIFICATION

FAQ

Q: What is the cheapest plastic in injection molding mold?

A: The lowest cost is usually polypropylene and polyethylene. It is extremely widely used and can be used to make various materials from milk tanks to car batteries. These are materials used by most people every day, and lower materials cost help to achieve large -scale production.

Q: How long is the service life of plastic injection molds?

A: The expected life of injection molds can be circulated from hundreds of times to more than one million times, and its durability depends on its environment, maintenance, materials, structure, formation conditions, structural design and other factors.

Q: What factors should be considered when selecting a plastic mold tooling material?

A: Several factors should be considered when selecting a plastic mold tooling material, including the type of plastic being used, the required production volume, the complexity of the design, the desired surface finish, and the cost and availability of the material.

Q: Are plastic moulds reusable?

A: If you're planning on doing any sort of casting with metal or plastic, you might be wondering if you can reuse your molds. The answer is yes, you can reuse your molds, but there are a few things you need to keep in mind. First of all, it's important to make sure that your molds are clean before you start.

Q: How is plastic mold tooling designed?

A: Plastic mold tooling is designed through several stages of planning and engineering. The process usually starts with a concept or design for the product that needs to be created. Then, engineers and designers work together to create a prototype of the product using computer-aided design (CAD) software.

Qingdao Hailong Machinery Technology Co., Ltd. is one of the most experienced plastic injection mould manufacturers and suppliers in China, also supports customized service. Please feel free to buy discount plastic injection mould made in China here from our factory. Contact us for pricelist.

Automotive Injection Mold, 3 plate mold, Two plate mould