High Strength Lightweight PA12 CF20 Pellets for Cobot Arms
PA12 CF20 pellets merge metallic rigidity with polymeric lightness while ensuring enduring reliability, establishing them as next-generation materials for precision robotic joints demanding both high-cycle performance and durability. These optimized properties directly tackle automation’s triple challenge: enhancing speed, maintaining accuracy, and guaranteeing longevity.
- Manufacturer: Carbon New Material
- OEM/ODM: Acceptable
- Color: Black
- Free samples: ≤10kg
- MOQ: 100kg
- Port: Xiamen
- Model: PA12-CF-BCA2
- Fillers: SCF
PA12 CF20 pellets (20% carbon fiber-reinforced nylon 12 pellets) are ideal materials for robotic joint components due to its exceptional stiffness-to-weight ratio, durability, and precision stability—critical for high-performance robotics. Below are key reasons why it outperforms metals and standard polymers in this application:
1. High Stiffness with Lightweight (Key for Dynamic Movement)
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Specific Stiffness: PA12 CF20 pellets achieves ~8-10 GPa tensile modulus at a density of 1.3-1.4 g/cm³, comparable to aluminum (~69 GPa at 2.7 g/cm³) but 50% lighter. This reduces inertia, enabling faster acceleration/deceleration in robotic arms.
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Fatigue Resistance: Withstands >1 million cycles under repetitive loads (per ISO 527 testing), critical for joints in assembly-line robots.
2. Dimensional Stability (Precision Under Load)
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Low Thermal Expansion: Coefficient of 2-3 × 10⁻⁵/°C (vs. 23 × 10⁻⁶/°C for steel), minimizing positional drift in temperature-varying environments (e.g., industrial ovens or outdoor robots).
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Moisture Resistance: Water absorption <0.7% (vs. ~2.5% for unfilled PA12), ensuring stable performance in humid conditions.
3. Wear & Chemical Resistance (Longevity)
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Wear Rate: <0.5 mm³/(N·m) in pin-on-disk tests (ASTM G99), outperforming unreinforced plastics by 5×. Ideal for gear/bearing surfaces.
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Chemical Inertness: Resists oils, greases, and weak acids common in industrial settings (per ISO 175 testing).
4. Design Flexibility & Cost Efficiency
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Net-Shape Molding: Complex geometries (e.g., integrated bearings, snap fits) can be injection-molded, reducing assembly parts by 30% vs. metal joints.
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EMI Shielding: Carbon fiber provides surface resistivity of 10³–10⁵ Ω/sq, protecting joint electronics from interference.
Case Example: Collaborative Robot (Cobot) Arm
A leading cobot manufacturer replaced aluminum joints with PA12 CF20, achieving:
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20% weight reduction → 15% higher energy efficiency.
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No lubrication needed vs. metal joints, cutting maintenance costs.
Surface Resistivity Comparison
Conductors < 10⁵ Ω/sq. Antistatic Materials 10⁵ ~ 10¹² Ω/sq. Insulators > 10¹² Ω/sq. Static-Dissipative 10⁶ ~ 10¹¹ Ω/sq. *Key Influencing Factors Humidity: Increased moisture can reduce resistivity (e.g., in polymers). Temperature: Affects carrier mobility (↑ heat may lower semiconductor resistivity). Surface Contamination: Dust/oils alter readings significantly. Additives: Carbon black, metallic fillers can lower resistivity. *Applications Electronics: Antistatic materials (10⁶–10⁹ Ω/sq) prevent electrostatic discharge (ESD). Aerospace: Composites must control resistivity to avoid charge buildup. Medical Devices: Insulating materials (>10¹² Ω/sq) ensure patient safety. *Examples Polypropylene (PP): ~10¹⁶ Ω/sq (excellent insulator). Carbon Fiber Composites: 10³–10⁶ Ω/sq (static dissipation). ESD Flooring: 10⁶–10⁹ Ω/sq.
Get to Know Carbon Fibers
The table presents key performance data of carbon fiber grades. T300, with a tensile strength of 3530 MPa and a tensile modulus of 230 GPa, has a relatively low tensile elongation at break of 1.5% and a body density of 1.76 g/cm³. As the grade increases, for example, T700S shows an enhanced tensile strength of 4900 MPa compared to T300, while maintaining the same tensile modulus but with a higher elongation at break of 2.1%. T800S and T1000G both have a tensile modulus of 294 GPa, and their tensile strengths are 5880 MPa and 6370 MPa respectively. T1100G stands out with the highest tensile strength of 7000 MPa and a tensile modulus of 324 GPa. Generally, with the increase in product grade, the tensile strength and modulus tend to rise, while the density remains relatively stable around 1.8 g/cm³.
How to Buy?
If you want to obtain information such as product specifications, performance, and price, choose a suitable product according to your own needs. Meanwhile, you can ask the manufacturer to provide samples for testing to ensure that the material meets your usage requirements. If you are interested in purchasing this composite material, please contact the manufacturer Carbon (Xiamen) New Material directly.
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Frequently Asked Questions
Carbon (Xiamen) New Material Co., Ltd. aims to provide buyers with "one-stop" worry-free high-quality services. Here you can find all information about carbon fiber engineering plastics. If you still have questions, please send us an email for consultation!
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Where will I find a buying guide?
Please contact our after-sales service directly and we will provide you with a comprehensive operating guide.
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What are CF Reinforced Thermoplastic Composites?
CF Reinforced Thermoplastic Composites are materials where carbon fibers are incorporated into a thermoplastic matrix. They combine the strength and stiffness of carbon fibers with the processability and recyclability of thermoplastics. For instance, they are used in automotive parts like bumper beams.
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What are the benefits of CF Reinforced Thermoplastic Composites over traditional composites?
The key benefits include faster production cycles, easier recyclability, and better impact resistance. They also offer design flexibility. An example is in the manufacturing of consumer electronics casings where complex shapes can be achieved more easily.
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How are CF Reinforced Thermoplastic Composites processed?
Common processing methods include injection molding, extrusion, and compression molding. Injection molding is widely used for mass production. For example, in the production of small components for the medical industry.
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What industries use CF Reinforced Thermoplastic Composites?
They are utilized in aerospace, automotive, medical, and sports equipment industries. In aerospace, they can be found in interior components. In the medical field, they might be used in prosthetics.
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How does the carbon fiber content affect the properties of the composites?
Higher carbon fiber content generally leads to increased strength and stiffness but may reduce ductility. A moderate content is often balanced for specific applications. For example, a higher content might be preferred in structural parts of a race car.
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What are the challenges in using CF Reinforced Thermoplastic Composites?
Challenges include higher material costs, complex processing equipment requirements, and ensuring uniform fiber dispersion. Issues with adhesion between the fibers and the matrix can also arise. An example is in achieving consistent quality in large-scale production.
