In the gasket manufacturing industry, there are many different technologies that enable precise processing of rubber and rubber materials. One of the most modern and efficient methods is the use of a CNC plotter with an oscillating knife. This technology brings a number of advantages that make it an ideal choice for processing various materials, especially for small and medium series of gaskets.
How does a CNC plotter with oscillating knife work?
A CNC (Computer Numerical Control) plotter with oscillating knife operates on the principle of a computer-controlled machine that guides knife movements according to precise digital design. The oscillating knife vibrates at high frequency, which enables cutting even soft and flexible materials, such as rubber, with high precision.
Step-by-step gasket manufacturing using CNC plotter:
- Design and data preparation: The gasket design is created in CAD software and then converted to a format that the plotter interprets.
- Material selection: The rubber sheet is placed on the CNC machine work surface. Material selection depends on requirements for resistance to chemicals, temperatures, or mechanical stress.
- Cutting with oscillating knife: The knife gently and precisely cuts through the rubber according to the specified design, ensuring high precision and clean cutting edges.
- Inspection and finishing: After cutting, the gasket is inspected to ensure it meets the required dimensions and quality.
Why choose a CNC plotter with oscillating knife?
This gasket manufacturing technology has several key advantages over traditional methods:
- High flexibility: Thanks to the ability to quickly change designs, the CNC plotter is ideal for manufacturing small and medium series, prototypes, or specific orders.
- No need for molds: Unlike traditional methods where expensive molds must be manufactured, the CNC plotter cuts gaskets directly from digital design. This saves both costs and time.
- High precision: Precise cutting minimizes waste and ensures that the gasket will perfectly meet requirements.
Comparison with other technologies
Laser cutting
Laser cutting is very precise and can process complex shapes. However, with rubber materials it can cause problems with thermal damage to edges. Laser often creates burned edges that can affect gasket quality, especially when high resistance is required.
Manufacturing using die-cutting molds
This method is traditionally used for large series where it pays to invest in manufacturing metal molds. It is very efficient for mass production but less flexible. Each design change requires a new mold, which can significantly increase costs and slow down the process.
Water jet cutting
Water jet cutting is very precise and suitable for a wide range of materials, including rubber. This method does not cause thermal damage, which is an advantage over laser. On the other hand, it is more expensive to maintain because it requires the use of abrasive material and special equipment.
A detailed description of the plotter as a machine for gasket manufacturing can also be found, for example, at this link.
Conclusion
Using a CNC plotter with oscillating knife represents an innovative approach to manufacturing flat rubber gaskets. It offers high flexibility, precision, and speed without the need to invest in expensive molds or special equipment required by, for example, water jet or laser. For small and medium series or prototypes, this technology is a clear choice that combines low costs with high output quality.
We manufacture gaskets up to 2100 x 3100 mm in size. We offer a wide range of rubbers and rubber materials from which we can efficiently manufacture both individual and series-produced components.