Basic description of technical parameters of Fulies Air Spring



Shortcode description

MAH: Maximum Height. It refers to the maximum height value that the air spring can reach without the airbag bursting under the condition that the air spring is restrained at both ends;

SH: Safe Height. It refers to the maximum height value that has been rigorously tested by the technicians of Fryce Corporation and considered to be long-term and safe. It is recommended not to exceed this height value during use. If you need to use more than this height value, please consult Fulais technicians;

DH: Design Height. In consideration of lateral stability, we recommend that air springs be used at a specified height when used as a vibration isolator. This specific height is called the “isolated design height”, or design height for short. When using the air spring as a vibration isolator, you can refer to this height value. When used as a driver, the design height can be ignored;

MIH: Minimum Height. The minimum height to which the air spring can be compressed. When compressing an air spring, keep the height of the air spring slightly higher than the specified minimum height. If the airbag is in a compressed state for a long time, it may cause damage. Therefore, a downward limit is required to prevent this situation. The outer lower limit can be a simple steel block, and the limit height should be slightly higher than the minimum height of the air spring. If the external lower limit cannot be used, Fulies can also provide air springs with built-in rubber cushions;

MAS: Maximum Stroke. The Maximum Stroke (MAS) is the difference between the maximum height (MAH) minus the minimum height (MIH), which is MAS = MAH-MIH.
SS: Safe Stroke. The Safe Stroke (SS) is the difference between the safe height (SH) minus the minimum height (MIH), which is SS = SH-MIH.

ND: Natural Diameter. Refers to the maximum diameter of the air spring in the natural state of the air spring before leaving the factory, unconstrained and uninflated. This value is for reference only. The outer diameter of the air spring will change according to the external pressure and internal pressure.

MAD (or Max. Φ): Maximum Diameter. It refers to the maximum outer diameter that the airbag can reach within the range of allowed height, vibration isolation force, driving output force and internal pressure. For equipment with limited installation space, this parameter value is very important;



PD: Plate Diameter. Refers to the outer diameter of the metal plates at the upper and lower ends of the bladder air spring.

ED: End Diameter. It refers to the outer diameter of the rubber capsule body of the bladder air spring.



Explain the glossary

Lateral stiffness: Lateral stiffness refers to the ability to resist lateral deformation. It is the ratio of the horizontal force applied to the structure to the horizontal displacement caused by it. Its size is not only related to the nature of the material itself, but also to the cross-section and shape of the component or structure. In simple terms, it is the reciprocal of the displacement caused by applying a force of unit 1, which can be calculated using graph multiplication. The single-capacity and double-capacity air springs without additional air storage chambers at the design height generally have a rigidity rule of: lateral stiffness is 1/5 to 1/2 of vertical stiffness (Only the lateral stiffness of the larger high-strength airbag will be 1/2 of the vertical stiffness) . Single- and double-bladder air springs should be used at their design height, because air springs have maximum lateral stiffness or stability at this height. As the height of the air spring decreases, its lateral stiffness also decreases.

Double Convoluted Air Spring 2B325-230 A87

Technical Data
MAH: 305 mm
SH: 265 mm
DH: 240 mm
MIH: 75 mm
MAD: 325 mm
Replaces These Air Springs
Continental ContiTech: FD 330-22 CI 60031
Continental ContiTech: FD 330-22 CI G1/4
Continental ContiTech: FD 330-22 1/4 M8
Continental ContiTech Bellow: FD 330-22 / FD 330 22 / FD33022
Firestone No.: W01-M58-6381 / W01 M58 6381 / W01M586381
Firestone Style: 22
Goodyear Flex No.: 578-92-3-309 / 578 92 3 309 / 578923309
Dunlop FR: 12″x2 S12202
Pirelli: T22
Pega: P30.2303.P03 / P30 2303 P03 / P302303P03
Manufacturer Original-part no. Model
Granning 15646
Hendrickson NA 1816 / NA1816

Double Convoluted Air Spring 2B250-200 A134

Technical Data
MAH: 275 mm
SH: 240 mm
DH: 210 mm
MIH: 75 mm
MAD: 250 mm
Replaces These Air Springs
Continental ContiTech: FD 200-19 319 / FD200-19319 / FD20019319
Continental ContiTech Bellow: FD 200-19 / FD 200 19 / FD20019
Firestone No.: W01-358-6900 / W01 358 6900 / W013586900
Firestone Style: 20
Goodyear: 2B9-216 / 2B9 216 / 2B9216
Goodyear Flex No.: 578-92-3-202 / 578 92 3 202 / 578923202
Enidine: YI-2B9-216 / YI 2B9 216 / YI2B9216
Automann: SP2B12R-6900 / SP2B12R 6900 / SP2B12R6900
Triangle: AS-4319 / AS 4319 / AS4319
TRP: AS69000
Manufacturer Original-part no. Model
Ridewell 1003586900C
Prevost 63-0173 / 63 0173 / 630173
DINA AZ-8127-19 / AZ 8127 19 / AZ812719
Suspension Dynamics 630173
Watson & Chalin AS-0156-1G / AS 0156 1G / AS01561G

Double Convoluted Air Spring 2B220-195 A123

Technical Data
MAH: 270 mm
SH: 230 mm
DH: 205 mm
MIH: 77 mm
MAD: 220 mm
Replaces These Air Springs
Continental ContiTech: FD 120-20 CI G3/4
Continental ContiTech: FD 120-20 CI G3/4 M8
Continental ContiTech: FD 120-20 3/4 M8
Continental ContiTech: FD 120-20 CI 62448
Continental ContiTech Bellow: FD 120-20 / FD 120 20 / FD12020
Firestone No.: W01-M58-6387 / W01 M58 6387 / W01M586387
Firestone Style: 26
Manufacturer Original-part no. Model

Double Convoluted Air Spring 2B80-45 D907

Technical Data
MAH: 110 mm
SH: 105 mm
DH: 90 mm
MIH: 65 mm
MAD: 80 mm
Replaces These Air Springs
Continental ContiTech: FD 22-4 DI G1/4 CR
Continental ContiTech: FD 22-4 DI G1/4 CR M6
Continental ContiTech: FD 22-4 DI CR G1/4
Continental ContiTech: FD 22-4 DI CR G1/4 M6
Continental ContiTech: FD 22-4 DI CR 69342
Continental ContiTech Bellow: FD 22-4 / FD 22 4 / FS224
Firestone No.: W01-R58-4080 / W01 R58 4080 / W01R584080
Firestone Style: 2¾” x 2 / 2¾”x2 / 2¾x2
Dunlop FR: 2¾”x2 SP2907
Dunlop FR: 2¾”x2 SP2042
Norgren: PM/31022 / PM 31022 / PM31022
Nominal Ø(inch) x convolutions: 2¾” x 2 / 2¾”x2 / 2¾x2
Festo: EB-80-45 / EB 80 45 / EB8045
Parker: 2.3/4×2 9109009
Manufacturer Original-part no. Model

Single Convoluted Air Spring 1B80-20 D745

Technical Data
MAH: 70 mm
SH: 65 mm
DH: 60 mm
MIH: 50 mm
MAD: 80 mm
Replaces These Air Springs
Continental ContiTech: FS 22-3 DI G1/4 CR
Continental ContiTech: FS 22-3 DI G1/4 CR M6
Continental ContiTech: FS 22-3 DI CR G1/4
Continental ContiTech: FS 22-3 DI CR G1/4 M6
Continental ContiTech: FS 22-3 DI CR 69342
Continental ContiTech Bellow: FS 22-3 / FS 22 3 / FS223
Firestone No.: W01-R58-4079 / W01 R58 4079 / W01R584079
Firestone Style: 2¾” x 1 / 2¾”x1 / 2¾x1
Dunlop FR: 2¾”x1 SP2745
Norgren: PM/31021 / PM 31021 / PM31021
Nominal Ø(inch) x convolutions: 2¾” x 1 / 2¾”x1 / 2¾x1
Festo: EB-80-20 / EB 80 20 / EB8020
Manufacturer Original-part no. Model

Double Convoluted Air Spring 2B220-195 A87

Technical Data
MAH: 270 mm
SH: 230 mm
DH: 205 mm
MIH: 77 mm
MAD: 220 mm
Replaces These Air Springs
Continental ContiTech: FD 120-20 CI G1/4
Continental ContiTech: FD 120-20 CI G1/4 M8
Continental ContiTech: FD 120-20 CI 62055
Continental ContiTech Bellow: FD 120-20 / FD 120 20 / FD12020
Firestone No.: W01-M58-6353 / W01 M58 6353 / W01M586353
Firestone Style: 26
Goodyear: 2B8-850 / 2B8 850 / 2B8850
Goodyear Flex No.: 579-92-3-530 / 579 92 3 530 / 579923530
Enidine: YI-2B8-850 / YI 2B8 850 / YI2B8850
Manufacturer Original-part no. Model

Double Convoluted Air Spring 2B215-155 A123

Technical Data
MAH: 230 mm
SH: 205 mm
DH: 190 mm
MIH: 75 mm
MAD: 215 mm
Replaces These Air Springs
Continental ContiTech: FD 120-17 CI G3/4
Continental ContiTech: FD 120-17 CI G3/4 M8
Continental ContiTech: FD 120-17 3/4 M8
Continental ContiTech: FD 120-17 CI 2682 030 000
Continental ContiTech Bellow: FD 120-17 / FD 120 17 / FD12017
Goodyear: 2B8-2152 / 2B8 2152 / 2B82152
Goodyear Flex No.: 578-92-3-2151 / 578 92 3 2151 / 5789232151
Festo: EB-215-155 / EB 215 155 / EB215155
Dunlop FR: 8″x2 S08201
Norgren: PM/31082 / PM 31082 / PM31082
Nominal Ø (inch) x convolutions: 8″ x 2 / 8″x2 / 8×2
Manufacturer Original-part no. Model

Double Convoluted Air Spring 2B215-155 A87

Technical Data
MAH: 230 mm
SH: 205 mm
DH: 190 mm
MIH: 75 mm
MAD: 215 mm
Replaces These Air Springs
Continental ContiTech: FD 120-17 CI G1/4
Continental ContiTech: FD 120-17 CI G1/4 M8
Continental ContiTech: FD 120-17 1/4 M8
Continental ContiTech: FD 120-17 CI 61361
Continental ContiTech Bellow: FD 120-17 / FD 120 17 / FD12017
Goodyear: 2B8-2151 / 2B8 2151 / 2B82151
Goodyear Flex No.: 578-92-3-2151 / 578 92 3 2151 / 5789232151
Dunlop FR: 8″x2 S08200
Manufacturer Original-part no. Model

Double Convoluted Air Spring 2B165-130 A87

Technical Data
MAH: 200 mm
SH: 180 mm
DH: 175 mm
MIH: 70 mm
MAD: 165 mm
Replaces These Air Springs
Continental ContiTech: FD 70-13 CI G1/4
Continental ContiTech: FD 70-13 CI G1/4 M8
Continental ContiTech: FD 70-13 1/4 M8
Continental ContiTech: FD 70-13 CI 2682 015 000
Continental ContiTech Bellow: FD 70-13 / FD 70 13 / FD7013
Goodyear: 2B6-833 / 2B6 833 / 2B6833
Goodyear Flex No.: 579-92-3-510 / 579 92 3 510 / 579923510
Enidine: YI-2B6-833 / YI 2B6 833 / YI2B6833
Firestone No.: W01-M58-6105 / W01 M58 6105 / W01M586105
Firestone Style: 255-1.5 / 255 1.5 / 2551.5
Festo: EB-165-125 / EB 165 125 / EB165125
Manufacturer Original-part no. Model

Double Convoluted Air Spring 2B205-150 A541

Technical Data
MAH: 225 mm
SH: 195 mm
DH: 165 mm
MIH: 75 mm
MAD: 203 mm
Replaces These Air Springs
Firestone Style : 224
Goodyear : 2B7-541 / 2B7 541 / 2B7541
Goodyear Flex No. : 579-92-3-525 / 579 92 3 525 / 579923525
Enidine: YI-2B7-541 / YI 2B7 541 / YI2B7541
Manufacturer Original-part no. Model