Inflatable Sterilizer Door Seals

Glovebox Isolator Inflatable Door Seals

Inflatable Door Seals for Tablet Coaters

Inflatable Clamp/Actuator for Doctor Blades

Inflatable bladders are used to clamp doctor blades of varying thicknesses in their holders, and to apply uniform pressure along the blade length in inkers, coaters, and other critical doctor blade applications. These bladders are typically manufactured in long lengths up to 50 feet (15.24 meters) using  profiles.

Inflatable Brakes/Stops for Conveyor Applications

Inflatable clamps configured with two sealed ends can be positioned along the sides of the conveyor belt or rolls, and inflated against the product to temporarily interrupt the flow while the jam clears downstream. Alternately, the bladders can be located underneath the conveyor and activated to release the contact between belt and rollers.

Shaft Shutdown Inflatable Seal

Inflatable seals provide an excellent temporary shaft seal during shutdown and maintenance operations. The seal can be inflated against the stationery shaft while packing or when mechanical seals are being changed, thereby eliminating the necessity to drain mixers and agitators before the change out. After the new packings or mechanical seals are in place, the paper processing seal is deflated allowing the shaft to rotate freely. The same concept can be applied to the change out of marine propeller shaft seals.

Single Inflatable Bladder Expandable Mandrel

Custom designed circular bladders are designed for radial expansion outward. These bladders actuate metal buttons, lugs, or rubber shoes to grip on the inside of the core for winding and unwinding paper rolls in slitters or other converting and production operations.

Multi-Bladder Expanding Mandrel

Custom designed linear bladders are designed to run the length of the shaft and actuate metal buttons, lugs, or rubber shoes to grip on the inside of the core for winding and unwinding paper rolls in slitters or other converting and production operations.

Thermal Processing Inflatable Seals

We provide unique inflatable seals made from high-grade EPDM and silicone rubber materials. These semiconductor seals are used on the load locks and access doors in advanced vertical thermal processors for 200 mm wafers. The 150-wafer load size of these processors supports peak production by providing higher throughput at the lowest cost per wafer. The inflatable seals resist both vacuum and positive pressure, and replace traditional flat gasketing and O-rings, thereby simplifying the hardware and speeding the overall processing operation.

Circuit Board Inflatable Seals

A thin wall, low durometer neoprene molded inflatable seal for double sided automatic exposure units for printed circuit board imaging is used to create a positive seal between the printed circuit board material and the imaging platen as a vacuum is drawn. The printed circuit boards are intricately imaged in this vacuum environment and the inflatable seal speeds the overall process and replaces traditional hardware associated with a positive seal over a large surface.

Low Outgassing Expansion Joint 

Ductwork enclosing a conveyor belt connects several clean rooms together, allowing for material movement between rooms.  To address outgassing concerns and to account for slight movement in the ducting, we designed a molded expansion joint made from a low outgassing silicone material.  Manufacture of this molded semiconductor gasket is tightly controlled as any contaminants could compromise the clean room environment.

Load Lock Inflatable Seal/Clamp

A load lock inflatable seal is a unique product made of low outgassing butyl rubber material. It has been tested for vacuum service and provides a highly efficient and repeatable seal in the patented vacuum load lock section of a fully automated electron beam metrology system. This metrology system is used for sub-micron critical dimension measurement and integrated circuit imaging. With its unique blend of automation, measurement precision, and high throughput, the system meets and exceeds the process control needs of advance semiconductor manufacturing lines. The load lock inflatable seal simplifies the hardware necessary to achieve a seal in vacuum, and speeds the process of taking a wafer, loading it into the lock, and making critical measurements relative to its surface and its circuitry. The design life for these semiconductor seals is 600,000 cycles at 40 PSIG, and a representative sample was factory tested to 1,000,000 cycles at 75 PSIG

Hopper to Transfer Car Inflatable Seals

Inflatable seals are used on the mouth of a hopper valve or metering device; they are designed to expand axially down to form a leak-tight seal around the fill opening in a transfer cart. Type 1 style inflatable seals are best suited for this quick connect/disconnect application.

Inflatable Seals for Viscous Pumping Equipment 

Type 10 style inflatable seals are an ideal solution for sealing around the periphery of follower plates when pumping viscous liquids, such as grease, paste, or cake frosting from their container drums. The rectangular profile of these seals minimizes the tendency of roll out from the seal’s retainer, which can pinch the seal when the follower plate descends.

Drum Filling Inflatable Seals

Type 1 and Type 2 style inflatable seals work particularly well for drum filling applications where the seal on the cover expands radially outward against the inside of the drum to allow for leak-tight filling.

Bulk Bag Filler Inflatable Seals

A filling equipment seal on the spout expands radially outward to effect a dust-tight seal against the inside of the bag neck during filling. This is very common with FIBC bulk bag filler systems. Any of the Type 1 or Type 2 styles of inflatable seals work very effectively in this application.

Mixer Lid Inflatable Seals with Square Corners

Inflatable seals can be configured with pre-molded 90 degree corners to effect leak-tight seals for hinged or sliding covers on access ways and other openings in mixers and other powder/bulk or fluid handling processing equipment. Type 1 style seals are best suited for this application.

Fluorosilicone Seals for Chemical Processing

Fluorosilicone is used to combat both high temperatures and aggressive chemicals.  In this application, semi-conductor assemblies are treated in a large chemical bath.  The fluorosilicone P-strip is used to seal the cover while the machine is operational.

Inflatable Seals for Butterfly Valve

Inflatable seals are ideal for butterfly valves in tight sealing applications. The clearance between the deflated seal allows for low torque rotation of the disk and eliminates the damaging effect of abrasion on the seal. When the disk is fully closed, the seal inflates radially inward against its edge to effect a leak-free condition.

Slide Gate Valve Inflatable Seals

Inflatable seals provide the tightest seal possible for controlling the flow of very fine materials. The valve seal does not inflate until the blade is firmly in position and then the seal inflates – creating a leak-free seal.

Inflatable Seals for Rotary Union Ports

Ports and passages through rotary valves are readily sealed leak tight with inflatable seals. The seals can be located in glands machined in the valve body to expand inward against the plug or they can be located in glands machined in the plug to expand outward against the valve body. When deflated, the plug can be rotated with minimum torque since there is no seal frictional force to overcome. When inflated, a tight seal forms to control the direct flow of the fluid or solid material.