Made to drawing
CUSTOM PNEUMATIC SEALING
Make changing gaps seal reliably.
Inflatable seals expand on demand to bridge uneven clearances, then retract for fast opening, cleaning and product changeover.
- Materials
- Silicone / EPDM / NBR
- Geometry
- Custom profiles and closed rings
- Built for
- Doors, ducts and process equipment
One sealing principle. Built around your equipment.
Cleanroom doorsPowder transferSterilizersLarge hatches
The operating sequence
Clear when moving. Sealed when working.
The seal remains protected inside its groove until the equipment reaches position. Regulated air then moves the profile into contact.
- 01
Retract
Keep the profile clear while a door, container or product moves.
- 02
Position
Close or align the equipment before the seal receives air.
- 03
Inflate
Expand in the designed direction until the mating surface is contacted.
- 04
Release
Exhaust the air and confirm retraction before the next movement.
Product families
Start with the geometry.
Profile, ring, valve and groove are developed as one sealing assembly. Final pressure and operating limits depend on the approved cross-section and application test.
Supported construction
Reinforced seals
Inflatable sealing profiles developed for applications that need controlled expansion, stronger support or demanding operating cycles.View details →
Section engineering
Profiles and valves
Profile geometry and inflation hardware coordinated for the required direction of movement, installation space and service access.View details →
Flexible pneumatic forms
Inflatable bladders
Custom rubber bladders and pneumatic forms for expansion, clamping, positioning and temporary sealing functions.View details →Material review
Choose from exposure, not color.
Silicone
Often reviewed for broad temperature flexibility and clean processing needs.
EPDM
Often considered for water, steam, weather and selected cleaning environments.
NBR
Commonly evaluated where resistance to oils is relevant to the application.
Special compounds
Reviewed when chemical, temperature or service requirements go beyond common materials.
Compatibility and any regulatory requirement must be confirmed for the proposed compound and actual operating conditions.
Applications
Built for the interface.
Controlled environments
Cleanroom doors
Retractable seals for door perimeters where dependable closure and clean access are both required.Application guide →
Process containment
Powder transfer
Custom seals for interfaces around drums, containers, chutes and transfer equipment with changing diameters or gaps.Application guide →
Thermal process equipment
Process doors
Custom perimeter seals for process chambers and doors where movement, temperature and cleaning conditions must be reviewed together.Application guide →Real product library
Shapes, colors, profiles and working examples.
Engineering library
Better inputs. Faster design review.
Engineering guide
Selection checklist
A practical checklist for turning an equipment problem into a complete inflatable-seal request for quotation.Read the guide →
Engineering guide
Material selection
How temperature, chemicals, cleaning, flexibility and duty cycle shape the choice between silicone, EPDM, NBR and other compounds.Read the guide →
Engineering guide
Groove and installation
Design and installation considerations for retaining the profile, protecting its corners and preserving free movement.Read the guide →Start with the equipment
Send us the equipment, not just a seal size.
Send the groove drawing, gap range, medium, temperature and expected quantity for an application review.