PA6G Cast Polyamide is a high-performance engineering plastic produced by casting, offering excellent dimensional stability, high mechanical strength, and superior wear resistance. This grade is widely used for heavy-duty bushings, bearings, gears, and precision CNC-machined components operating under continuous load, pressure, and sliding conditions.
What is PA6G Cast Polyamide?
PA6G Cast Polyamide (Cast Nylon 6) is an advanced engineering polymer manufactured using
a casting process rather than extrusion. This production method results in a more uniform material
structure, lower internal stress, improved dimensional stability, and higher mechanical performance
compared to standard extruded PA6.
Due to these characteristics, PA6G Cast is one of the most widely used materials for industrial
components subjected to heavy loads, continuous motion, pressure, and abrasive operating conditions.
Key engineering advantages of PA6G Cast
1. Excellent dimensional stability
The casting process minimizes internal stresses and improves dimensional stability.
As a result, components made from PA6G Cast maintain tighter tolerances and exhibit reduced
deformation over time.
2. High mechanical and compressive strength
PA6G Cast offers higher tensile, compressive, and flexural strength than standard PA6,
allowing components to withstand heavy mechanical loads.
3. Superior wear resistance compared to PA6
This grade performs reliably in sliding and rotating applications involving repetitive motion,
making it ideal for wear-prone components.
4. Precision CNC machinability
PA6G Cast is well suited for CNC machining. Uniform chip formation, controlled tool response,
and reduced post-machining deformation make it a preferred choice for precision parts.
5. Lower moisture sensitivity than PA6
Reduced moisture absorption contributes to improved dimensional stability and longer component
service life.
6. Cost-effective engineering solution
PA6G Cast delivers performance close to higher-cost engineering polymers while remaining a
cost-effective option for industrial applications.
Typical applications of PA6G Cast Polyamide
- Industrial bushings and bearings
- Gears for stable power transmission
- High-precision CNC-machined components
- Sliding elements, guides, and rails
- Rollers and wear-resistant wheels
- Packaging machinery components
- Parts exposed to continuous load and abrasion
PA6G Cast compared with other polyamide grades
| Property | PA6 | PA6G Cast | PA66 | GF30 |
|---|---|---|---|---|
| Dimensional stability | Medium | Very high | High | Very high |
| Mechanical strength | Medium | High | High | Very high |
| Wear resistance | Good | Very good | Good | Excellent |
| Machinability | Excellent | Good | Medium | Medium |
Selection considerations for PA6G Cast
- Recommended for components subjected to high load and continuous wear.
- Preferred over standard PA6 when dimensional accuracy is critical.
- Internal stress assessment is recommended before high-precision CNC machining.
Typical technical data of PA6G Cast Polyamide
| Property | Typical value |
|---|---|
| Density | 1.13 – 1.15 g/cm³ |
| Hardness (Shore D) | 80 – 85 |
| Service temperature | -30°C to +110°C |
| Tensile strength | 75 – 90 MPa |
| Wear resistance | Very high |
Frequently asked questions about PA6G Cast
What is the main difference between PA6G Cast and PA6?
PA6G Cast is produced by casting, resulting in higher strength, better dimensional stability,
and lower internal stress compared to extruded PA6.
When should PA6G Cast be selected?
It is recommended when components are exposed to heavy loads, severe wear, or require high
dimensional accuracy.
Is PA6G Cast suitable for CNC machining?
Yes. It is widely used for CNC machining, although it is slightly more challenging to machine
than standard PA6.