Oil Seal Types

We can't emphasise enough how important it is to choose the right oil seal to keep your application functioning, and functioning well. Not every oil seal is the same. Manufactured using various material elastomers and to suit a range of dimensions, seals are as unique...

Rotary Shaft Seals

Rotary shaft seals are the more formal name for this type of seal; however, we also know them as oil, grease, fluid, or dirt seals. Whatever you call them however, they all perform the same function – to close the space between stationary and moving parts in machinery...

Silicone O Rings

As a leading O ring UK manufacturer and supplier of high quality seals and gaskets, offering a wide range of types, sizes, and sealing solutions that suit various applications across all industries, we work hard to ensure you get the best sealing solution for your...

Viton O Rings

Viton o rings bring with them numerous advantages, especially for applications within high-tech and critical industries. Providing great resistance to wide fluctuations in temperature and chemical ranges as well as being wholly suitable for pressure applications,...

How are O Rings made?

O rings are one of the most common components within manufacturing. Suitable for a range of applications and found in numerous everyday appliances, o rings are a vital piece of equipment to provide the perfect sealing solution. Ring-shaped seals, o rings are made up...

Pipe Gasket

A pipe gasket is designed to seal a space between two sections of a pipe. Many pipes have flanged surfaces where they join, which means it isn’t smooth or flat to make this connection secure. In order to overcome this flared area, a flange gasket will be used to...

Spiral Wound Graphite Fill Gasket

With so many different gasket options on offer today, we know it can be difficult deciding which ones have the right features for your needs. Each type of gasket is suitable for a variety of applications or uses, and the material that your gasket is made from will...

What are Bonded Seals?

As you start to compare the seals on offer on our site, you’ll find that there are many different options for a variety of uses. Bonded seals are a great solution for some applications, offering many benefits over other types of seals. Specialist Sealing Products...

Rubber Gasket Material

Rubber gaskets are a very valuable solution for a variety of uses, however, you’ll want to make sure you always choose the right option for your unique business operations. There are a variety of rubber gasket materials on offer, which provide you with an effective...

Installation of Spiral Wound Gaskets

Spiral wound gaskets are crucial in the prevention of leaks. Used across various industries, we know that spiral wound gaskets can provide the perfect sealing solution.  We also understand that your ultimate goal when working with gaskets is to ensure they fit...

See our latest catalogue for all the services we offer.

Gasket Cutting

Gasket CuttingUsing the latest technology and equipment, gasket cutting today offers incredible precision.

Achieving customised gaskets that meet your sealing requirements, today we’re now seeing various gasket cutting techniques used as we move away from the standard dimensions and specifications of gaskets to meet the growing demand for more bespoke materials and sizes.

As a leading spiral wound gasket supplier at Specialist Sealing Products, we stock gasket materials to suit all requirements and specifications. However, it’s always good to know how gaskets are cut and the pros and cons of each technique, as these can affect your application.

Read on below to find out more.

Custom Gasket Cutting

We use gaskets in various applications to help prevent leaks. Often placed between two static parts typically, gaskets are manufactured from silicone, rubber, foam, synthetic rubber, plastic, and more.

Some of the most popular gasket-cutting techniques and their pros and cons include:

Manual Cutting – this is a very common technique and is used if you need a custom gasket there and then on the job. You can use utility knives, scissors, or shears for this technique. Ideally, tolerance for hand-cut gaskets would be greater than 1/8 of an inch. The downside to this technique is it can leave jagged edges or nicks in the gasket, weakening the seal. This process is also slow, tedious, and you run the bigger risk of increasing waste.

Die Cutting – a popular option when working with soft material. Here the cutting process can involve using a rotating hydraulic press, where the rotating cylinder creates contact with the sheet material, cutting the gasket as it goes. This tool is shaped and set to your specific requirements making it great for batch work, reducing the overall cost of the gasket.

Flatbed Die Cutting – unlike a rotating die cut, here sheets are laid flat with the gasket punched out. This process suits larger gaskets for bigger applications that require a thicker material for sealing. However, it’s important to be aware that this gasket fabrication process is slower than other methods.

Clicker Press – used on higher production runs, rolled steel die is placed through a pneumatic press achieving large gasket quantities with a good yield. This process is not recommended for larger gaskets or custom gaskets that require small quantities.

Knife Cutting – a cost-effective process of gasket fabrication that is ideal for small production runs. In these instances, high-speed computer-programming tools and equipment will cut the sheet metal using a series of blades to cut your spiral wound gasket perfectly. This particular process delivers high accuracy and can be used for engraving and shaving. This process avoids distortion, is more precise, and is suitable for soft and thicker materials.

CNC Cutting – a 3-axis cutting head that cuts the material. This process involves converting the gasket dimensions to CAD drawing files, which are then uploaded to the machine, where the machine will get started and begin to cut. The pros of this approach include speed, high accuracy, savings (as sheets can be placed together), and your production team can simply hit start and walk away.

Water Jet Cutting – a newer method of custom gasket cutting, where fluid is used to shape the gasket. The fluid in use is a mix of water and a more abrasive liquid compressed and then released with force onto the sheet. This particular technique is accurate and cost-effective, can help avoid deformation and discolouration, you can achieve tight cuts, and reduce error. Water jet cutting can cut paper, metal, and even ceramics.

Log and Strip Cutting – log stripping involves keeping gasket rolls intact and cutting them into smaller rolls. Strip cutting follows a similar process, but the sheet is unrolled and then stripped into sections.

Compression Moulded – this technique is mainly used for rubber gaskets as we use a heat mould to create the shape of the gasket; then, it is compressed and cured, where you can open the mould to get the final product. This technique is suitable for low production, low volume, and less intricate gaskets.

Injection Moulded Gaskets – a quick method and great for batch work, injection moulded gaskets involve melting down the material and placing it in the injection machinery, where the material is injected into the open mould and left to cool. When the gasket comes out of the mould, there is no flash meaning there is no need for additional trimming. This method is good for intricate gaskets or those that require high precision.

Spiral Wound Gasket UK Supplier

Fabricating gaskets means working to your schedule and testing to make all the necessary adjustments ensuring the gasket you need is the gasket you get.

It’s important that you find the right cutting technique suitable for your spiral wound gasket—considering the material, quantity, cost/budget, and time.

For quality gaskets you can trust, contact us today and see how we can help you.

Read the next article: Spiral Wound Graphite Fill Gasket



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