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PA(Nylon/Polyamide) Injection Molding

For products demanding high mechanical strength, look no further than PA injection molding

PA plastic materials and PA injection molded part

A Trusted Supplier Proficient in PA Injection Molding

Given the volume of projects we undertake in the automotive industry, we frequently encounter product demands utilizing PA materials. Over ten years of mold design and injection molding experience have equipped us to overcome all defects commonly encountered in PA injection molding, ensuring you need not worry about product quality.

Specializing in the application of PA6+GF and PA66+GF materials, combined with high-precision injection molding machines and meticulous production management, we offer various cooperation models to suit your needs with FirstMold.

Injection mold is running for pa molding

Applications of PA Injection Molding

Due to PA materials’ mechanical properties, excellent toughness, and impact resistance, they are widely used in the automotive industry.

Material Type Common Grades Material and Properties
Engine Parts
Cylinder heads, intake manifolds, intake silencers, radiators, filters, timing belt oiler covers, high-pressure code protectors, motor brushes, precipitators, cooling fans
GPA6, PA66, PA6 with high strength, temperature resistance, and environmental adaptability
Body Parts
Doors, front and rear cover plates, handles, door locks, seatbelt fixing chains, dashboards, mudguards, sun visor clamps
PP/PA6, PE/PA66, PPO/PA6, PA66, etc., with impact resistance, thermal stability, and paintability
Electrical Components
Electrical wiring, connectors, fuses, fuse boxes, wire covers, wire clips and fixing sleeves, terminal blocks, buttons, switches
PA6, Flame-retardant PA6
Drive Control Components
Gears, wheel covers, clips, throttles, pedals, brake pipes, oil transmission pipes
Reinforced PA6, PA66, PA11, PA12, PA46

Consumer Electronics

PA injection molding in consumer electronic sector


PA injection molding in aviation industry

Tools & Equipment

PA injection molding in tools & equipment sector


PA injection molding in electrical industry

Here are some case study images of PA material parts manufactured by FirstMold:

PA 30glass fiber injection molded invertor
Nylon injection molded gear and screws
Nylon Fitting Plastic Waterproof Environmentally Friendly 4-Point Pipe Fitting
Induction switch housing pa66+30gf
Nylon material Dumbbell Barbell Bar Clip
PA Plastic Solutions

PA Injection Molding Quality Assurance

Material Source Assurance

FirstMold has built a decade-long partnership with reliable material suppliers. We provide material certifications and are also flexible to source materials from suppliers you recommend. 

Testing Assurance

With multiple Coordinate Measuring Machines (CMM), material testing instruments, quadratic element vision measure, and environmental testing devices at our disposal, we ensure that every injection molded part meets our stringent quality criteria.

Mold Design Assurance

Our mold design and production teams work in close collaboration. Through multiple professional team meetings, we finalize the mold design plans, no rish at all.

PA Injection Molding Cases

PA Injection Molding FAQs

faqs for plastic injection molding service

What is PA injection molding?

PA injection molding is a plastic processing technique primarily used for producing products from polyamide (PA) material. Commonly known as nylon, it is a raw material for synthetic fibers and plastics, noted for its wear resistance, corrosion resistance, high strength, light weight, and good toughness. Through the PA injection molding process, nylon material is heated to a molten state, injected into a mold, and then cooled to solidify, forming plastic products in the desired shape. Nylon injection molding can be used to produce a wide variety of shapes and sizes, such as gears, bearings, handles, toys, stationery, and appliance parts.

To learn more about injection molding, click “What is Injection Molding.”

What are the pricing factors for your PA injection molding services?

The pricing factors for FirstMold’s PA plastic fabrication services mainly include mold manufacturing, the cost of different PA materials (including modified materials), labor costs, equipment depreciation, and service level.

Specifically, the precision, complexity, and lifespan of mold manufacturing can impact the price, while the cost of nylon materials and labor depends on market prices and the company’s cost structure.

We provide reasonable quotes and solutions based on the client’s needs and budget to meet their requirements.

In PA plastic fabrication, potential product-related issues may include, but are not limited to, the following:

1. Insufficient dimensional accuracy: This can be due to inadequate mold manufacturing precision, material thermal expansion and contraction, improper temperature control, etc. We can address these issues by optimizing mold design, improving mold manufacturing precision, and precisely controlling material temperature and injection pressure.

2. Surface defects: Such as surface bubbles, weld lines, and flow marks, which may be caused by inadequate mold venting, insufficient injection pressure, or improper timing. We can resolve these by optimizing mold structure, adding venting systems, and adjusting injection parameters.

3. Structural defects: Such as shrinkage voids, gas pockets, and weld lines, which may be due to improper mold structure design or inappropriate plastic material selection. We can mitigate these by optimizing mold structure, selecting suitable materials, and adjusting injection parameters.

All injection molding factories may encounter the above issues, but FirstMold’s advantage is that all our staff have many years of experience. We strive to prevent these situations from occurring and quickly resolve any defects that might appear in the PA plastic machining process without affecting the delivery time, appearance, and performance of your order.

Can you provide post-molding services such as surface treatment, assembly, or packaging for PA injection molded parts?

Yes, we can provide post-molding services such as surface treatment, assembly, or packaging for PA injection molded parts.

With our own partial surface treatment production lines such as silk screening and spray painting, and some cooperative surface treatment suppliers, we can efficiently complete most surface treatments.

Regarding assembly and packaging, we have two product assembly lines. Our assembly and packaging department, with 30 employees, is always at your service.

Can you handle very complex PA material parts?

The manufacture of complex PA material parts is largely due to intricate mold design and mold processing. Our design and mold processing departments are not only experienced but are also industry enthusiasts—they enjoy tackling complex parts.

After the mold is made, production management is also crucial. FirstMold uses international standard 6S management to strictly control every process and link. Our goal is simple—to never let you leave disappointed.

Do you have experience with two-color injection molding of PA materials?

Yes, we have extensive experience with two-color injection molding of PA materials, especially in the automotive and optical industries. We have purchased several high-precision two-color injection molding machines that can inject two different types of plastic materials simultaneously, achieving different colors, hardness, and performance requirements. Additionally, our technical support team has many years of two-color injection molding experience and can provide professional solutions to ensure the Nylon parts produced meet customer needs and standards.

How do you ensure that the PA materials used are qualified?

We place great emphasis on the quality and reliability of materials. We cooperate with two types of material suppliers: those we have worked with for many years and those specified by the client.

Before using Nylon materials, we conduct rigorous material testing and screening. First, we ensure that the materials provided by suppliers meet our quality standards and specifications. Next, we perform material composition analysis, temperature resistance testing, chemical corrosion resistance testing, etc., to ensure the quality and stability of the materials. Additionally, we regularly conduct random material tests to ensure that the quality consistently meets the customer’s requirements and standards.