List of Sealing products
- classification:Sealing
1~45 item / All 810 items
Reduce the workload from handling heavy objects! Here are five case studies that solved customer challenges! We are also accepting free consultations and tests tailored to your work!
- Other conveying machines
It won't break even after 1 million repetitions! A mat switch with reliable operation, high durability, and low price. Suitable for options in machine tools as well. Please consult us about delivery t...
- Sensors
Metal seal for canisters. Good news for substances that cannot use resin or elastomer seal materials! By adopting metal seals, helium leak tightness has been achieved.
- Sealing
- Chemicals
- Other semiconductor manufacturing equipment
Delta Seal (HNV HELICOFLEX(R) DELTA) achieves ultra-high vacuum! [Standardized for JIS V-groove flanges]
- Sealing
- CVD Equipment
- Etching Equipment

[Standardized for JIS V Groove Flange] Low Tightening Pressure Y 'Ultra High Vacuum Delta Seal' for Semiconductor Field
The Delta Seal (HNV HELICOFLEX(R) DELTA) has two delta-shaped protrusions on the contact side of the cross-section. The delta-shaped protrusions are designed to collapse and disappear during the compression of the outer casing when the flange groove is assembled. The design tightening pressure of the Delta Seal is lower compared to the Helicoflex seal, allowing for replacement with elastomer O-rings. Leak rate: *For circular shapes, 10⁻¹² Pa·m³/sec. (10⁻¹¹ atm·cm³/sec.) *Depends on the quality of the installation side. 【Features】 ■Two delta-shaped protrusions on the contact side of the cross-section ■Achieves ultra-high vacuum ■Has excellent elasticity and can be used at high temperatures ■Can be replaced with elastomer O-rings *For more details, please refer to the PDF document or feel free to contact us.
[Prototype] Eptsealer 20t with tape, processed by plotter.
- Sealing
It can be used in situations where sealing, handling, or locking is required. The vacuum ranges from 0.133 Pa to high pressure, and the design temperature is from -60°C to +220°C.
- Sealing
- Gas sterilizer/sterilizer
- Vacuum Equipment

Inflatable Seal "CEFIL'AIR(R)"
The "Inflatable Seal" CEFIL'AIR is a product that expands and contracts with air pressure and other factors. It has a suitable structure for areas where sealing is frequently needed, ensuring safety. We offer a wide variety of cross-sectional shapes and materials made from our own elastomer. Due to its high design flexibility, it can be manufactured in various cross-sectional shapes, both small and large. For more details, please refer to the related products and catalogs below.
Waterproof sleeve for underground and outer walls "Pipe in Sleeve" (abbreviated as PIS) Construction site labor-saving! Improvement of building waterproof performance!
- Piping Materials
- Pipe Fittings
- Sealing
Waterproof sleeve for underground and outer walls "Pipe in Sleeve" (abbreviated as PIS) Construction site labor-saving! Improvement of building waterproof performance!
- Piping Materials
- Pipe Fittings
- Sealing
Uses ePTFE membrane with excellent breathability, water resistance, and oil repellency. Ventilation filter "SBF" for sensors and electronic components.
- Other filters
- filter
- Sealing
It blocks fine particles, water, and oil, allowing clean air to pass through.
- Sealing
High-durability rotary seals from Hallite in the UK, featuring low friction, smooth operation, and improved wear and pressure resistance!
- joint
- Hydraulic Equipment
- Sealing
It is a metal seal with elasticity! Compatible with RF/FF, T&G, NW/KF, three-face contact type, ICF/conflat, irregular shapes, and rectangular shaped grooves!
- Sealing

Here are some important points to consider when selecting metal seals such as spring-energized C-rings! <Materials available upon request>
We will introduce important points for making metal seals functional, as well as key considerations for designers, from a high-performance seal manufacturer of products such as spring-energized C-rings, metal seals like HELICOFLEXⓇ, and metal hollow O-rings. The selection of metal seals is crucially dependent on the design of the corresponding flanges. Factors such as the material of the flanges and bolts, the tightening load (minimum required bolt load during tightening), pressure, temperature, and the method of bolt fastening are all related to the occurrence of insufficient compression in metal seals. *For more detailed information, please download from the related catalog.
No need to change the size or number of existing bolts? A must-see for those struggling with "wanting to eliminate gas permeation and gas release from vacuum rubber O-rings" in semiconductor manufactu...
- Sealing
- CVD Equipment
- Electron beam lithography equipment

If you want to eliminate gas permeation and gas release with a vacuum rubber O-ring, replace it with a spring-energized C-ring! 'Delta Beta HNRV'
The Delta Beta HNRV is originally designed with a low tightening pressure (Y) HELICOFLEX Delta seal combined with a specially processed internal spring, achieving replacement of rubber O-rings and improved performance. This metal seal is recommended for those who have concerns such as "wanting to eliminate gas permeation and gas release from rubber O-rings" and "unable to change the number or size of bolts on existing flanges." 【Features】 ■ Mainly for ultra-high vacuum use ■ Even lower design tightening pressure than before ■ Can be exchanged with elastomer O-rings ■ Two delta-shaped protrusions on the contact side of the cross-section It does not guarantee compatibility with existing flanges. Specifications for existing flanges are required. *For more details, please download the PDF or feel free to contact us.
UHP/UHV, ultra-high purity, ultra-high vacuum, advanced metal sealing solutions for ultra-low temperature.
- Sealing
- CVD Equipment
- Etching Equipment
Replace with elastomer seals! Introducing our metal seals.
- Sealing
- CVD Equipment
- Semiconductor inspection/test equipment
Reduce radiation exposure during maintenance and lower operational costs!
- Sealing
Ideal for factory automation and handling! Vacuum from 0.133 Pa to high pressure, with a design temperature range of -60 to 220℃.
- Sealing

Inflatable Seal "CEFIL'AIR(R)"
The "Inflatable Seal" CEFIL'AIR is a product that expands and contracts with air pressure and other factors. It has a suitable structure for areas where sealing is frequently needed, ensuring safety. We offer a wide variety of cross-sectional shapes and materials made from our own elastomer. Due to its high design flexibility, it can be manufactured in various cross-sectional shapes, both small and large. For more details, please refer to the related products and catalogs below.
Section diameter and wall thickness considering design tightening pressure! We offer basic shapes and high-pressure balance types.
- Sealing

Here are some important points to consider when selecting metal seals such as spring-energized C-rings! <Materials available upon request>
We will introduce important points for making metal seals functional, as well as key considerations for designers, from a high-performance seal manufacturer of products such as spring-energized C-rings, metal seals like HELICOFLEXⓇ, and metal hollow O-rings. The selection of metal seals is crucially dependent on the design of the corresponding flanges. Factors such as the material of the flanges and bolts, the tightening load (minimum required bolt load during tightening), pressure, temperature, and the method of bolt fastening are all related to the occurrence of insufficient compression in metal seals. *For more detailed information, please download from the related catalog.
It is used in the most demanding/critical environments such as accelerators, aerospace, and nuclear fusion reactors!
- Sealing
- Other machine elements
"Replace rubber O-ring to metal seal, Eliminate gas permeation and gas release." This can be possible with Delta Beta HNRV.
- Sealing
- CVD Equipment

If you want to eliminate gas permeation and gas release with a vacuum rubber O-ring, replace it with a spring-energized C-ring! 'Delta Beta HNRV'
The Delta Beta HNRV is originally designed with a low tightening pressure (Y) HELICOFLEX Delta seal combined with a specially processed internal spring, achieving replacement of rubber O-rings and improved performance. This metal seal is recommended for those who have concerns such as "wanting to eliminate gas permeation and gas release from rubber O-rings" and "unable to change the number or size of bolts on existing flanges." 【Features】 ■ Mainly for ultra-high vacuum use ■ Even lower design tightening pressure than before ■ Can be exchanged with elastomer O-rings ■ Two delta-shaped protrusions on the contact side of the cross-section It does not guarantee compatibility with existing flanges. Specifications for existing flanges are required. *For more details, please download the PDF or feel free to contact us.
It prevents the intrusion of external soil, mud, and water into the sealed part of the rotating axis!
- Sealing
Streamlining the tape application process for shipping cardboard boxes and printing lot numbers! Collaborating with various manufacturers.
- Sealing
- Other processing machines
Excellent chemical resistance! O-ring type sealing ring with excellent heat and cold resistance.
- Other machine elements
- Sealing
Dry non-destructive testing that does not get wet. Since it is a tabletop machine consolidated into one unit, there is no need to create jigs.
- Leak Testing Equipment
- Sealing
- Defect Inspection Equipment
New standards for waterproof testing. A non-destructive dry leak test device that does not get wet. Capable of testing equivalent to IPX7 and IPX8.
- Leak Testing Equipment
- Defect Inspection Equipment
- Sealing

Please take a look at Fukuda's sealed product air leak testing device!
What is a sealed product air leak test device? It is an air leak test device that inspects the airtightness, sealing performance, and waterproofness of electrical equipment and packaging containers (cosmetics, food). It tests for leaks in products such as smartphones, tablet devices, keyless switches, wristwatches, bottle containers, and cosmetic containers (eyeliner, mascara).
Can be installed without disassembling the pump - 2-part mechanical seal.
- Sealing
Long lifespan of seal rings and oil seals with explosive thermal spraying!
- Sealing
It has excellent heat resistance compared to regular PTFE! Prevents creep phenomenon.
- Sealing
Used for the purpose of preventing seizing! An additive that enhances the sealing properties of gaskets.
- Sealing
- Coating Agent
Easily stretchable material for smooth installation! Silicone rubber gasket for pressure vessels.
- Sealing
Good balance of strength and ease of processing! A sealing material widely used for industrial purposes.
- Sealing
Easily prevents leakage and damage even under harsh conditions! High-temperature and high-pressure flange sealing material.
- Sealing
Usable under high temperature and high pressure conditions! A high-performance product that exhibits excellent sealing performance.
- Sealing