Firestone Air Springs Catalog - MRO Stop

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Buy Online at http://www.mrostop.com/products/pneumatics/air-springs/firestone-air-springs.html Table of Contents and Introduction...............................2 Advantages of Airstroke Actuators ...............................3 Advantages of Airmount Isolators.................................4 Air Spring Bellows Construction ...................................5 End Closure Options TABLE OF CONTENTS Crimped bead plates..................................................6 Crimped bead plates mounting hardware .................7 Steel bead rings.........................................................8 Aluminum bead rings.................................................9 The three types of bead rings and mounting hardware................................................10 Rolled plates ............................................................11 How to use the Static Data Chart For Airstroke Actuation......................................12&13 For Airmount Isolation..............................................13 Internal Rubber Bumpers..............................................13 Basic Parameters Applicable to Both Airstroke Actuators and Airmount Isolators Media .......................................................................14 Pressure ..................................................................14 Temperature ...........................................................14 Contaminants...........................................................14 Storage ....................................................................14 Airstroke Actuation Selection ..................................................................15 Down and Up Stops.................................................15 Return ......................................................................15 Guiding ....................................................................15 Angular Capability....................................................15 Horizontal Misalignment ..........................................16 Design Envelope......................................................16 Stacking ...................................................................16 Fail-Safe Devices.....................................................16 Vacuum....................................................................16 Inflation Pressure Chart...........................................17 Airstroke Actuator Problem Solvers ...........18,19 & 20 Airmount Vibration Isolation Selection Procedure and Isolation Formula .......21-22 Dynamic Spring Rate Formula ................................22 Natural Frequency Formula.....................................22 Center of Gravity......................................................23 Lateral Rates and Stability.......................................23 Triple Convoluted and Reversible Sleeve Type Parts .................................................24 Design Envelope......................................................24 Safety Stops ............................................................24 Initial Installation ......................................................24 Startup and Shutdown/Resonance and Amplification ...................................................24 Isolating an Unbalanced Mass ................................24 Low Pressure Operation..........................................24 Effect of an Auxiliary Reservoir ...............................24 Damping ..................................................................25 Plumbing Systems...................................................25 Isolation Chart..........................................................26 Airmount Isolation Problem Solvers ...................27-28 Miscellaneous Applications Shock Impact Isolation.............................................29 Protective Boot and Flexible Connector ..................29 Vacuum Pump .........................................................29 Inflatable Chuck .......................................................29 Cam Follower...........................................................29 Miscellaneous Problem Solvers .........................30-31 Airstroke/Airmount Selection Guide......................32-33 Individual Air Spring Data Pages..........................34-100 Airomatic Polyactuator................................................101 Index & Work Sheets Order Number to Style Number to Page Number .........................................102-103 Airstroke Design Parameter Worksheet ............105 Airmount Design Parameter Worksheet................107 Style Number to Page Number..............................109 Firestone developed the air spring in the late 1930’s as a more efficient spring (vibration isolator) for use in vehicle suspensions. Airide springs, as they were named, provided the means for a suspension to reduce the amount of road shock and vibration transmitted into the vehicle. Millions of miles of actual use have proven the dependability and effectiveness of the air suspension concept using Airide springs by Firestone. Airstroke actuators, Airmount isolators, and Airide springs are Firestone registered trademark names for one product: the air spring. The use of the air spring (actuator, industrial isolator and vehicular isolator, respectively) determines which name is applied to it. All of the parts in this catalogue may be used as Airstroke actuators (except the 1X84D-1 and 2M1A) or Airmount isolators, with two exceptions: Triple convoluted and reversible sleeve type air springs (except the 1M1A-0) should not be used as Airmount isolators without consulting Firestone. INTRODUCTION Individual Airstroke actuators and Airmount isolators are capable of generating a force or supporting a load of up to 100,000 pounds, and a stroke capability of up to 14 inches is possible. Included in this engineering manual are detailed operating characteristics for many of the standard Firestone air springs, along with technical details and procedures for using these products. PLEASE NOTE: The information contained in this publication is intended to provide a general guide to the characteristics and applications of these products. The material, herein, was developed through engineering design and development, testing and actual applications and is believed to be reliable and accurate. Firestone, however, makes no warranty, expressed or implied, of this information. Anyone making use of this material does so at his own risk and assumes all liability resulting from such use. It is suggested that competent professional assistance be employed for specific applications. 2 Copyright © 2007 BFS Diversified Products, LLC
Buy Online at http://www.mrostop.com/products/pneumatics/air-springs/firestone-air-springs.html ADVANTAGES OF FIRESTONE AIRSTROKE ACTUATORS Why use an Airstroke actuator (rather than air or hydraulic cylinder) for actuation LOW COST Generally, initial cost is one-half or less than conventional pneumatic or hydraulic cylinders of the same force capabilities. This initial cost advantage is many times greater in the larger sizes. WIDE SIZE RANGE Airstroke actuators are available in sizes ranging from 2.2 inches to 37 inches in diameter. The force capability is 100,000 pounds. Strokes of up to 14 inches are possible. DURABLE FOR LONG LIFE Airstroke actuators are a further application of Firestone’s time proven Airide springs for truck and bus suspensions. The long life and durability necessary for millions of miles of heavy duty suspension use under adverse environmental conditions are also important factors in machine design. NO MAINTENANCE OR LUBRICATION REQUIRED NO INTERNALROD OR PISTON Airstroke actuators have no internal rod, piston, or sliding seals as do conventional cylinders. This allows for the design of Airstroke actuators into applications where dirt or grit would destroy the seals on conventional cylinders. FRICTION FREE FOR IMMEDIATE RESPONSE Since Airstroke actuators have no sliding seals, there is no breakaway friction as with conventional cylinders FLEXIBLE MEDIA An Airstroke actuator can do its work with either a liquid or gas (Please see page 14 for acceptable media choices.) ANGULAR CAPABILITY An Airstroke possesses the unique capability of stroking through an arc without a clevis. Angular motion of up to 30 degrees is possible, along with the design advantage of generally less complex linkages. SIDE LOADING CAPABILITY Airstroke actuators, within certain limits, are not affected by side loads as are conventional cylinders. This misalignment capability eliminates potential rod bending, scoring, and excessive seal wear common to conventional cylinders. COMPACT STARTING HEIGHT Airstroke actuators have a low profile compared to conventional cylinders. Our smallest Airstroke actuator (2.2 inch/dia.) collapses to just 1.1 inches in height, while our largest triple convoluted Airstroke (37 inch/dia.) will collapse to a very compact 5.5 inches. FACTORY SEALED AND TESTED Most Airstroke actuators feature Firestone’s proven concept of crimped end plates. The crimped design allows for preshipment testing and quicker installation on equipment. PLEASE REFER TO PAGE 15 FOR A THOROUGH DISCUSSION OF ACTUATION. Buy Online at www.MROStop.com 3
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Firestone Air Springs Catalog - MRO Stop

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