Nylon Injection Molding Service

Custom Nylon Injection Molding Service

Providing Perfect Custom Nylon Injection Molding Solutions for Complex Geometries at Competitive Prices. NOBLE has extensive experience in custom nylon injection molding, offering high-precision parts tailored to complex geometries. Get a quote in minutes and receive unparalleled, high-quality nylon injection molded parts in just days!

Our Nylon Injection Molding Capabilities

NOBLE’s Nylon injection molding capabilities include high-precision molding for custom-designed parts. We specialize in producing complex geometries with tight tolerances, offering superior surface finishes. With expertise in Nylon’s unique properties, we ensure high-performance, durable components tailored to meet diverse industry requirements.

Price	$$$
Lead Time	< 5 days
Wall Thickness	0.045 in. – 0.140 in. (1.143mm – 3.556mm)
Tolerances	+/- 0.003 in. (0.08mm) with an included resin tolerance that can be greater than but no less than +/- 0.002 in./in. (0.002mm/mm)
Max Part Size	18.9 in. x 29.6 in. x 8 in. (480mm x 751mm x 203mm)
Available Nylon at NOBLE	PA 6, PA66, PA11, PA12, Glass-Filled PA

Characteristics of Nylon Injection Molding Materials

Thanks to nylon’s high strength, durability, chemical resistance, flexibility, and ease of molding, it is an ideal material choice for producing automotive, aerospace, and industrial parts.

Features	Info
Subtypes	PA6, PA66, PA12…
Process	Injection molding, milling, turning, drilling, laser cutting
Tolerance	+/- 0.003 in. (0.08mm) with an included resin tolerance that can be greater than but no less than +/- 0.002 in./in. (0.002mm/mm)
Applications	automotive parts, gears, bearings, aerospace parts, electrical insulators
Finishing Options	Glossy, Semi-glossy, Matte, Textured…

Pros and Cons of Nylon for Injection Molding

Nylon is a synthetic polymer widely used in injection molding for manufacturing parts due to its excellent combination of mechanical properties, wear resistance, and versatility. It is commonly used in applications where strength, durability, and chemical resistance are critical.

High Strength and Toughness

Nylon exhibits high tensile strength, making it ideal for applications that require strong, load-bearing parts. It is also known for its toughness, meaning it can withstand impact and stress without cracking or breaking, which is particularly beneficial in engineering and automotive components.

Good Wear Resistance

Nylon’s excellent wear resistance makes it suitable for parts that experience friction and contact with other materials. After injection molding, it is often used in gears, bushings, and bearings because it reduces the need for lubrication and maintains long-term performance.

Chemical Resistance

Nylon shows good resistance to oils, greases, and a wide range of chemicals. This makes it a preferred material for parts used in environments exposed to harsh chemicals or lubricants, such as in automotive, manufacturing, and industrial applications.

Low Coefficient of Friction

Nylon has a naturally low coefficient of friction, which reduces wear on both the material itself and the surfaces it contacts. This is especially valuable in high-performance applications like bearings and gears, where reduced friction improves efficiency and extends component lifespan.

Impact Resistance

Nylon is highly resistant to impact and can absorb shocks and stresses better than many other plastics. This makes it suitable for use in environments where parts may experience sudden impacts or loads.

Lightweight

Despite its strength, nylon is relatively lightweight compared to metals. This makes it advantageous in applications where weight is a concern, such as in aerospace, automotive, and sporting equipment.

Ease of Injection Molding

Nylon is easy to process using standard injection molding tools, allowing for the production of complex and precise parts. The material also offers excellent dimensional stability during injection molding, leading to high-quality, accurate finished products.

Moisture Absorption

One of the biggest drawbacks of nylon is its ability to absorb moisture from the environment. This can lead to dimensional changes, reduced strength, and altered mechanical properties. In applications requiring high dimensional stability, moisture absorption can be problematic, especially in humid conditions.

Low Heat Resistance

Nylon has relatively low heat resistance compared to other engineering plastics or metals. When exposed to temperatures above 150°C (300°F), its mechanical properties begin to degrade, limiting its use in high-temperature environments.

Susceptibility to UV Degradation

While nylon is chemically resistant, prolonged exposure to UV light can degrade its structure, causing it to become brittle and lose its strength. This makes it less suitable for outdoor applications unless UV stabilizers are added during injection molding.

Limited Load-Bearing Capacity

While nylon is strong and tough, it still has limitations in terms of load-bearing capacity compared to metals like steel or aluminum. For heavy-duty structural applications, nylon may not provide the necessary strength or durability, especially when exposed to continuous or high-impact stresses.

Surface Finish Quality

Although nylon can be injection molded with ease, the surface finish quality may not always meet the aesthetic or functional requirements for certain applications. Parts often require additional finishing treatments, such as polishing or coating, to achieve the desired finish.

Cost Considerations

Nylon, especially high-grade types like reinforced nylon, can be more expensive than other common plastics such as polypropylene or polyethylene. This cost factor can limit its use in low-cost or mass-production applications.

Types of Nylon Injection Molding Materials

In injection molding, Nylon is available in various grades and formulations, each designed to meet specific mechanical, thermal, and chemical requirements. These types are typically differentiated by their reinforcements, additives, or specific variations in molecular structure. Below are the common types of Nylon materials used in injection molding:

PA6

PA6 is easy to injection mold, offering a good balance between strength and flexibility. It’s commonly used in automotive, industrial, and consumer goods. However, its tendency to absorb moisture can affect dimensional stability during molding, so proper storage and drying are essential.

Tensile Modulus (MPa): 2500 – 3500 MPa

Tensile Strain (Yield): 7-10%

Rockwell Hardness (R-scale): R 80-95

Heat Deflection Temperature: 158 – 194°F

PA66

PA66 provides superior heat resistance and strength, making it ideal for high-performance parts. It’s more challenging to injection mold than PA6 and requires slower injection speeds and advanced cooling systems. Common applications include automotive, aerospace, and industrial components that demand high stiffness and dimensional stability.

Tensile Modulus (MPa): 3,000 – 4,000 MPa

Tensile Strain (Yield): 6-8%

Rockwell Hardness (R-scale): R 85-100

Heat Deflection Temperature: 212 – 248°F

PA11

PA11 offers excellent flexibility and impact resistance, making it suitable for parts subjected to stress. It is easy to injection mold and maintains better dimensional stability than PA6. PA11 is widely used in automotive, medical devices, and industrial components such as hoses and flexible connectors.

Tensile Modulus (MPa): 2500-3000 MPa

Tensile Strain (Yield): 20-40%

Rockwell Hardness (R-scale): R 75-90

Heat Deflection Temperature: 185 – 203°F

PA12

PA12 combines flexibility with chemical resistance, offering excellent injection molding capabilities and good dimensional stability. It is often used in automotive, electronics, and medical applications, including flexible tubing and cable insulation. Its low moisture absorption helps maintain consistent performance.

Tensile Modulus (MPa): 2200-2800 MPa

Tensile Strain (Yield): 15-30%

Rockwell Hardness (R-scale): R 70 – 90

Heat Deflection Temperature: 176 – 212°F

Glass-Filled PA

Glass-filled PA offers enhanced stiffness, strength, and heat resistance, making it ideal for structural and load-bearing components. It is more challenging to injection mold due to the abrasive fibers, which require carbide tools. This material is commonly used in automotive, aerospace, and industrial applications where high rigidity is required.

Tensile Modulus (MPa): 4,000 – 7,000 MPa

Tensile Strain (Yield): 3-5%

Rockwell Hardness (R-scale): R 95 – 110

Heat Deflection Temperature: 248 – 320°F

Surface Finishing Options for Nylon Injection Molding

Given Nylon’s natural surface roughness and its tendency to absorb moisture, selecting the appropriate surface finishing method is essential for improving durability, reducing friction, and enhancing overall performance. Proper surface treatments can help mitigate moisture absorption, improve aesthetics, and increase the lifespan of the molded parts.

Sand Blasting

Band blasting cleans the surface of any impurities and peels coating through the propelling of blast media streams over the parts.

Polishing

Working on metal and hard plastics, our polishing uses highly efficient machinery to get our parts between Ra 0.8~Ra0.1 for a cleaner surface.

Painting

Painting involves Spray droplets can be dispersed uniformly or in fine amounts to cover a wide surface area and bring out greater color to the part.

Laser Carving

Helpful in brand recognition or parts organization, we use laser carving that applies various printing methods during full-scale production to quickly embed barcodes, lettering and logos on the parts.

Powder coating

We apply a thin layer of protective polymer with the corona discharge phenomenon to give our part a lasting finish that protects from impacts and prevents wearing down.

Custom Nylon Injection Molding Parts Display

Explore our over a decade of experience in custom Nylon injection molding, featuring precision prototypes and parts produced for our valued customers.

Applications of Nylon Injection Molding

PA Nylon’s versatility in injection molding spans a broad range of industries, from automotive to aerospace, industrial machinery, and medical devices. Its excellent machinability, combined with superior wear, chemical, and impact resistance, makes it an ideal choice for high-performance, precision-engineered parts in demanding applications.

If you are looking for a rapid prototyping manufacturer or a CNC machine shop to fabricate small, medium-volume, or mass-production products, NOBLE is an ideal choice.Our well-trained and experienced staff manufactures parts in line with drawings on modern CNC machines, with the highest accuracy and processing quality in all sizes.In addition, we provide professional design considerations for your CNC machining projects.

Want to get the most professional and fastest service for your CNC machining project? Upload your CAD files now and obtain a quote!