CUSTOM SEALS FOR

INDUSTRIAL APPLICATIONS

At AIS our method of manufacturing seals and components is quite innovative.

By utilizing specially designed software, more than 100 pre-programmed profiles can be varied infinitely in both

standard and metric sizes to meet your application's specific requirements.

Since all seals and parts are CNC lathe-cut or milled there are no costly mold or die charges or expensive

minimums. You can order 1 piece or 5,000 pieces and have no set up charge. We offer a wide range of

materials to fit your needs in a variety of industries: Steel industries, Pulp & Paper Mills, Food & Drug, Chemical,

Filling and Packaging, Cable and Wire, and Automotive to name a few.

All of our products are produced with the aid of computers ensuring clean, precise, top quality parts at low prices.

LEAKAGE RATE

HOW MUCH IS A HYDRAULIC OR OIL LEAKCOSTING YOU?

OIL VOLUME LOST BY LEAKAGE

1 Drop Every 10 sec.1 Drop Every 5 sec.1 Drop Every sec.3 Drops per sec.Drips breaking into a stream

0.09 0.19 1.05 3.1520.0

GALLONS

LOSS PER DAY

0.66 1.32 7.32 22140

GALLONS

LOSS PER WEEK

2.705.63

31.5094.05

600.30

GALLONS

LOSS PER MONTH

USE YOUR PRICE FOR HYDRAULIC OIL PER GALLON TO CALCULATE THE LOSSES FOR YOUR COMPANY

YOU CALCULATE THE LOSSES.

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AIS Seal Division

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WHEN IN TROUBLE There is a simple process to follow in correcting any type of seal failure. 1. REEXAMINE YOUR SEAL SELECTION PROCESS. 2. EXAMINE COMPLETE SYSTEM 3. CAREFULLY EXAMINE FAILED SEAL FOR EVIDENCE OF: a. Softening or hardening of seal material. b. Dimensional changes in seal. c. Surface tears, scratches, extrusion or other physical damage. d. Obtain sample of system hydraulic fluid. 4. CONTACT AIS TO ASSIST IN ANALYSIS OF FAILURE AND RECOMMENDED SOLUTION.

1. SPIRAL FAILURE is often the result of a combination of factors such as basic seal geometry, long stroke and / or too soft an elastomer. The classic spiral failure usually is found in a simple O-ring type seal but will sometimes be evident in unsupported lip type seals as well. The use of AIS Seals, harder durometer materials, and seals with rectangular cross-sections will usually solve this problem.

2. EXTRUSION of the seal element is usually caused by excessive clearances in metal components, high axial loading, high pressure and use of too low a durometer seal material. Extrusion causes a loss in seal volume and stability. The prevention of extrusion usually requires a type of seal with built-in back up rings or use of special high durometer "extrusion -resistant" materials. AIS Seals for this purpose include Hard-Heel PolyPaks, SCL Seals, T-Seals and auxiliary devices such as modular back-ups.

3. SLIP-STICK is an expression of the differential between the static and dynamic coefficient of friction as it relates to start-up of a sliding mechanism. Slip-Stick occurs when the seal "hangs-up" in the transition period between static and dynamic modes or there is a variation in the system fluid pressure, or shock loads cause the piston to jump back to the static mode. The most noticeable result of Slip-Stick is erratic or jerky movement of the actuator rod. Slip-Stick often creates an audible noise and excessive heat and seal wear can occur. To prevent this problem, consider the use of AIS' internally lubricated compounds and/or change to seal design with lower friction potential and better bearing-to-stroke ratio.

4. HEAT DEGRADATION is to be suspected when the failed seal exhibits a hard, brittle appearance and/or shows a breaking away of parts of the seal lip or body/ Heat degradation results in loss of sealing lip effectiveness thru excessive compression set and/or loss of seal material. Causes of this condition may be use of incorrect seal material, high dynamic friction, excessive lip loading, no heel clearance and proximity to outside heat source. Correction of heat degradation problems may involve reducing seal lip interference, increasing lubrication, change of seal material. In borderline situations consider all upper temperature limits to be increased by 50ºF in dynamic reciprocating seals at the seal interface due to running friction.

5. IMPROPER INSTALLATION is a major cause of seal failure. the three broad areas to be watched during seal installation are: cleanliness, protecting the seal from nicks and cuts and proper lubrication. Other problem areas are over tightening of the seal gland where there is an adjustable gland follower or folding over a seal lip during installation. The solution to these problems is common sense and reasonable care during assembly.

6. SYSTEM CONTAMINATION is usually caused by external elements such as dirt, grit, mud, dust, even ice and internal contamination from circulating metal chips, breakdown products of the fluid, hoses or other degradable system components. As most external contamination enters the system during rod retraction, the proper installation of a rod wiper/scraper is the best solution. Internal contamination is best prevented by proper filtering of system fluid. Contamination is indicated by scored rod and cylinder bore surfaces, excessive seal wear and leakage.

7. CHEMICAL BREAKDOWN of the seal material is most often the result of incorrect material selection in the first place or subsequent change of system fluid. Misapplication or use of non-compatible materials can lead to chemical/reaction of seal elements. Chemical breakdown can result in loss of seal lip interface, softening of seal durometer, excessive swelling or shrinkage. The solution to chemical breakdown problems may be found with the use of special compounds designed for chemical resistance.

For additional information on possible causes of seal failure. Ask one of our representatives.Special Problem Areas

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FORMULA:CROSS SECTION = O.D. - I.D. / 2(Cross Section equals Outside Diameter minus inside Diameter divided by 2)

AVAILABLE SIZES: 0-100 INCHES IN DIAMETER

Seal Geometry

AIS can produce Rotary Shaft Seals(Oil Seals) in virtualy any design out of any available material. Our

standard design can be split or solid and is designed to hold pressures up to 1200psi. We can supply

single or double lip seals from 1mm ID to 100 inches OD. Because of our unique manufacturing

process we are capable of moving the contact point on our rotary seal to eliminate the need for new

shafts. Also our split design can be installed in virtually minutes with very little down time.

Rotary Shaft Seals

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All of the Above Profiles can be Manufactured by AIS

Profile Interchange - Piston Seals

However, the lettered circles can replace all of the attached circles

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Profile Interchange - Rod Seals

All of the Above Profiles can be Manufactured by AIS

However, the lettered circles can replace all of the attached circles

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Profile Interchange - Rod Seals

Material Description

Temp ºF

-40 to +230 (+130F in water)

-500 -400 -300 -200 -100 0 100 200 300 400 500

Polyurethane(Good for Water Glycol Applications)

-58 to +230Nylon

-22 to +230 (+200F in water)

NBR

-4 to +392Viton®

-49 to +302EPDM

-76 to +428Silicone

-380 to +500

-380 to +500

Virgin Teflon®

Filled Teflons®

® Trademark of DuPont

Profile Interchange - Rod SealsTemperature Range for Material

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OO-Rings

STBack-up Rings

FGuide Rings

RRotary Seals

KPiston Seals

SRod Seals

AWipers

VV-Packing

Many Non-Standard Profiles Also Available

AIS Standard Profiles

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Parker Style

Standard Poly-PakDeep Poly-PakType "B" Poly-PakPoly Bi-Pak8400,8500Rod T-SealPiston T-SealD-WiperU-WiperK-WiperJ-Wiper959 Wiper940 WiperParbak Modular Bearing

AIS Profile

K21K18S18K9K6 rubberS20K20A10A10A7A3A9A9ST9F1

Disogrin Style

005 Symmetrical001 "RO" Style002 "PI" Style110 Wiper006 Wiper009 Flange Seal008 Piston CupD-Lock

AIS Profile

K6S1K1A3A10S16K16S17

Polyseal Style

StandardDeepDeep "B"SQB

AIS Profile

K21K18S18S23

Chesterton Style

10,000 Mono Seal8,000 Super P'Chute5,000 Super Wiper

AIS Profile

K6K10, K11, K12A2

Shambam Style

Glyd RingStep Seal

AIS Profile

K18S9

Forsheda Style

V-Ring SV-Ring A

AIS Profile

R6R7

NOK, C/R & National Styles

Single LipDouble Lip

AIS Profile

R1R2

Hallite Style

6056012553

AIS Profile

S17K6K6K9

Garlock Style

92109220JAK Seal79 Wiper

AIS Profile

K16K6K6A3

AIS Cross Reference: Competitor's Style to our Profile Number

AIS Seals & Contact Info

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AIS Seals Application Data Sheet

Application Data:

__ Hydraulic__ Pneumatic__ Rod__ Piston__ Rotary Shaft

Operating Conditions:

Max Temp ºF __________Min Temp ºF __________Pressure in PSI __________Speed in RPM or FPM __________Fluid Type __________Adjustable Gland Y/N __________Single/Double Acting __________Special Notes __________

Rod Seal

N = _______

P = _______

D = _______

E = _______

Piston Seal

J = _______

G = _______

H = _______

E = _______

Rod Wiper TypePress In:Base Ht _____O.D. _____

Snap In:Base Ht _____O.D. _____

Rod Seal Information

Piston Seal Information

Seal Profile NumberRod Seal __________Piston Seal ________Rod Wiper _________

Copy Form As Needed

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AIS, also offers a full line of custom extruded and molded parts in a broad range of materials. We provide not

only fast turnarounds on these parts, but also low cost tooling made to your specifications.

At AIS we also offer custom gasket manufacturing. Our gaskets can be water cut or die cut in virtually any size

and shape. We offer an array of materials to suit all applications. This falls right in line with our other products

we offer and can be ordered in large or small quantities at very competitive prices with very quick deliveries.

Another product we provide is a wide variety of machined plastic parts. We can manufacture 0-100” in diameter

for applications that use nylon bushings or Teflon wear-bands or any other non-metallic parts your company may

need. All we need is a drawing or an idea to supply you with a solution.

AIS can also supply a complete line of standard and metric “off the shelf” seals such as

Polypaks, Wipers, V-Packing, O-Rings, Wear-Band Material and Shaft Seals.

The bottom line is AIS has the answer for all you sealing needs.

More than Just Seals

Sealing Your Industry

One Leak at a Time.

AIS Seals#1 Ronda DriveFlorissant, MO 63031-41091-800-434-8898Fax: 800-434-7599www.aldersonsales.com