Foam, Solid Gaskets
NEDC operates only with state-of-the-art equipment that can handle a wide variety of materials. One of the most sophisticated machines NEDC owns is our Waterjet Cutters. The Waterjet cutting happens through a very unique process. The process starts with a high-powered pump that creates a lot of pressure for the water. The water then exits the head of the waterjet through a premounted sapphire/diamond orifice. All of this action produces an extremely powerful waterjet stream that is forced from the head at incredible speeds, (30,000-50,000psi). This streams pierces the gasketing material creating a clean cut with the most available commodity on the planet, water. The waterjet cutting process allows parts to be nested in a very economical fashion. NEDC is a leading waterjet cutting supplier for gaskets, insulators, and other elastomeric products.
Foam or Sponge gaskets are also cut with our waterjet machine. These materials can be flexible and cause issues in conventional die-cutting. This is due to the elastic nature of these materials; causing the material to snap-back into an hourglass like shape. However, with a waterjet focusing on one hole/feature/cut at a time, meeting tolerance requirements becomes easier.
Solid Rubber Gaskets:
At NEDC, the main function of our waterjet is used to cut solid gaskets. These gaskets can range from nitrile rubber, to neoprene rubber. The reason we do this is because typically when our customer is looking for a few gaskets, we can make them quickly and accurately on our waterjet. It also helps us dial in tight tolerances. Some of these materials include neoprene, fluorosilicone, silicone, nitrile, EPDM, or other conventional rubber materials.
Advantages of a Waterjet Cutting Machine:
- Extremely Accurate Cuts of Complex Parts
Waterjet cutting offers an incredible amount of accuracy through a coordination of computer software and tight controls. Tolerance can be held as +/- .002” on some materials.
- Maximizes Yield of material through nesting software
Parts can be easily nested to offer our customer the best price possible. In some situations, when a part has a very unique geometry, sometimes the way it may be nested is not quite as linear as a simple horseshoe like part. In these cases, waterjet machines are able to flip, turn, and match the shape in many different directions utilizing every inch of material.
- No tool investment is necessary for water jet cutting
No tool is needed to be made, the DXF is the tool! Please provide an electronic file to aid in programming/cutting. This saves time and money because this file is cut to your specifications.
- Quick Prototypes
At NEDC, we strive to provide prototypes quickly. Waterjet Cutting offers the advantage of the customer being able to engineer the part through their DXF and see what the part will look like in production. The benefit of creating a DXF gives a side benefit of being able to move into production in a much quicker fashion by reducing the time between each prototype rendition. No tool is required to be created, so parts can be cut extremely fast.
- Cut parts from CAD/DXF files, to ensure perfect accuracy of every cut, every time. High degree of repeatability
The DXF is executed by the software in the waterjet cutting machine. When cutting with a DXF file, you can guarantee that no tool will wear/abrade. The waterjet stream itself is always offering a consistent water stream that makes each part nearly identical to the last. This makes reproducibility a huge asset for the machine.
- Allows materials to be cut without the typical compression of conventional die-cutting
Die-Cutting thick foam/sponge materials can result in concavity because of the “burst” action of the die; with a waterjet it is possible to avoid this compression distortion because the waterjet is not compressing the material in the way a conventional die cutting operation would. The difference is, it is slicing through the material in a vertical direction.
- Size of gaskets/parts has little limitations
Cutting gaskets has nearly no limitations when it comes to custom. However, size becomes a concern the bigger the gasket becomes. With waterjet cutting, the only limitation becomes the size of the bed of the waterjet itself. With that said, NEDC has cut 7 foot gaskets before on its waterjet machine.
Limitations of a Waterjet Machine
- Size of parts have limitations
While we just said above that bigger gaskets are easier to cut with a waterjet- as it gets smaller, it may become more difficult. This is because the waterjet stream has a size too, and that starts to limit the features it can cut with accuracy. If the stream and the feature become competitive in size, it can become a challenge.
- Amount of parts being cut
While waterjet cutting is pretty quick, the amount of parts being cut can become a challenge because as mentioned above, cutting with a waterjet only works on one feature at a time. This is in comparison to die-cutting that cuts everything all at once. This is one of the tradeoffs when using a waterjet cutting machine. This drawback generally falls under speed of the overall process.
- Some materials just do not work
Some materials just do not cut well on a waterjet. Fibrous, or otherwise paper like products generally have a tough time cutting because either they soak up the water or they explode when cutting them. It is wise to consult with an experienced waterjet operator before asking a part to be waterjet.
If you have a gasket/part that you believe could be waterjet cut, please send your question or drawing to firstname.lastname@example.org. NEDC has experienced waterjet operators that understand what the machine can do well.
Waterjet Cutting Blog
Closed Cell Sponge/Foam rubber materials have a place in the industry. Oftentimes they are used in applications where either for vibration dampening, or gasketing where not much compression force is available. However, there are also times where the environmental...
One difficult thing for the team is when a tight tolerance is put on a...
At NEDC, we use double coated tapes for a variety of purposes. Sometimes...
At NEDC, one of the main things we do is laminate materials with adhesive...
At NEDC, we manufacture lots of gap filling pads. In this blog, we discuss some thermal gel pads. All of these Gap Pad materials are used to isolate electronics while providing great thermal properties. Oftentimes customers get confused thinking Gap Pad VO, Gap Pad...
We manufacture all types of gaskets at NEDC. One of the more common requests is for flame retardant gaskets. Customers look for UL94 listed materials because their product is also UL listed. This makes it easier to meet their requirements. UL 94 discusses flame...
At NEDC we die-cut many different types of foam products. One of the more common foams we cut is crosslinked polyethylene foam(XLPE). XLPE foam is an abbreviation for crosslinked polyethylene foam. Gasketing is one of the main ways we use this material. Properties of...
EPDM Rubber is one of the most common materials seen in the gasket industry. The proper name for EPDM is ethylene propylene diene monomer. As a gasket manufacturer, we probably use the word EPDM everyday. We use it for tape strippings, foam, or solid gaskets. ...
Design Engineers are constantly looking for the highest thermal conductivity thermal pad they can find. In this blog we will be discussing 5 “High Thermal Conductivity Gap Pads”. Keep in mind Thermal Conductivity is Not Everything. That is why we have included some...
NEDC supplies a number of different types of products to its customers. One of the more common types of materials is stripping. These products come in a tape/roll format to allow the user to easily apply into the application. Adhesive Backing All of these strippings...
Compression set with gaskets is a constant concern because it eventually creates sealing issues with the interface of the gasket and the surface it is being pressured against. Compression set is a concern because the gasket will lose thickness and lose its ability to...
At NEDC we cut a lot of thermal gap filling pads. One of the frequent questions we get is “Why are many thermal pads not available with pressure sensitive adhesive?” The answer comes back to the whole purpose of the thermal pad itself. Attachment Methods Thermal...
At NEDC, we cut a lot of interesting materials. One of the most commonly used gasketing materials are EMI/RFI Shielding Gaskets. They feature high levels of electrically conductivity imparted by their fillers, and low electrical impedance. Many of these gasket...
In the gasket industry, we deal with a lot of materials. There are gasketing materials for just about every need. There are some gasket materials that can survive thousands of degrees for a few seconds. There are some that can handle hundreds of degrees continuously...
At NEDC, we would be remiss to not mention most of our products revolve around silicone-based materials. As a result, products that we offer a lot of die-cut silicone products. Out of our 5 core products, 4 are normally silicone based. In this post, we picked out 4...
We are an authorized 3M Converter at NEDC. As a result, we work with many of their tape products. These include VHB Tapes, EMI Shielding Tapes, Transfer Tapes, and many others. One of the tapes we work with often is 3M 9731 Double Coated Tape. This tape has the great...
All of the information presented above is believed to be factual and accurate; however, NEDC is not liable for any design or application utilizing this information.
New England Die Cutting
Popular Blog Posts
No Results Found
The page you requested could not be found. Try refining your search, or use the navigation above to locate the post.