Product information

Air spring

PSB type air spring

Click here for inquiries about this product

  • RoHS
Excellent anti-vibration and soundproofing effects unique to air springs with low natural frequency
The PSB type air spring is an air spring for general industrial equipment called a bellows type air spring. In addition to its excellent anti-vibration effect, it has many other features and is widely used for anti-vibration and actuator applications.

Performance/Features

Anti-vibration, anti-vibration applications

Excellent anti-vibration effect

It has a low natural frequency and good anti-vibration effect.

Wide load range

A wide range of loads can be handled simply by changing the internal pressure, and the natural frequency (anti-vibration effect) is almost constant.

Excellent sound insulation

It does not have the surging phenomenon seen in coil springs, can isolate high-frequency vibrations, and has a soundproofing effect.

Improved anti-vibration performance

A softer spring constant can be obtained by using an auxiliary tank.

Air damping force

Air damping force can be used by providing a throttle at the connection between the auxiliary tank and the air spring.

Actuator application

Compact with low mounting height

A compact actuator with a low mounting height can be designed despite the large load and stroke.

No lubrication or maintenance required

Since there are no sliding parts, you can obtain an actuator that does not require lubrication or maintenance.

Specifications/Standards

Model (part number) indication method

Without mounting plate

With mounting plate Top ported (P)

No.Namesurface treatmentFeatures
Rubber bellowsRubber bellows are made of synthetic rubber with excellent airtightness, high-strength reinforcing cords,
It consists of a ringed steel wire (bead wire) at the end and has excellent durability.
Tightening ringelectrogalvanizingThe rubber bellows and mounting plate are secured by tightening the tightening bolts.
Fix it airtight.
Intermediate ringelectrogalvanizingPrevents rubber bellows from swelling due to air pressure.
On the mounting plateelectrogalvanizingA metal fitting for mounting on a machine, with four mounting holes and an air vent.
Under mounting plateelectrogalvanizingMounting plate without air vents.
Tightening boltelectrogalvanizing-
can scroll

With mounting plate Side piping (Y)

Specification table

Number of stepsPart numberStandard heightMinimum heightMaximum heightFull strokeStandard heightBellows maximum outer diameterRegular use maximum inner shoMaximum use of Uchisho*1Allowable horizontal displacementAllowable declination
Ho
(mm)
Hmin
(mm)
Hmax
(mm)
X
(mm)
Effective diameter
D₀ (mm)
Effective pressure receiving area
A₀ (cm2)
Internal volume
Vₒ (cm3)
Dmax
(mm)
P₀
(MPa)
Pmax
(MPa)
(± mm)(± degrees)
1PSB-1-704136612578481001040.50.755
PSB-1-10062478235111964351450.50.7105
PSB-1-130102501328214215824202250.50.71515
PSB-1-145102501328215819624702350.50.71515
PSB-1-170102501328218226034702620.50.71515
PSB-1-230102501378724547059403240.50.71515
PSB-1-300102501378730975096303930.50.71515
PSB-1-36010250137873691070136604570.50.71515
PSB-1-43010250137874471570190005260.50.71515
PSB-1-50010250137875082030252005940.50.71515
2PSB-2-11011773151781119712001580.50.71515
PSB-2-1351828823014214616841102220.50.71515
PSB-2-1701828823614818125854702620.50.72015
PSB-2-235A1827825217424346496303210.50.72015
PSB-2-300A18282252170303720154003890.50.72015
PSB-2-360A182822521703621030194904480.50.73015
PSB-2-430A182862721864381504263405220.50.73015
PSB-2-500A182862721865112050357405900.50.73015
3PSB-3-17026210834824018526883502540.50.72010
PSB-3-235A262108362254240452145603210.50.72010
PSB-3-360A2621083902823661054290804430.50.72010
can scroll

*For the maximum internal pressure, please refer to the dimension/characteristics graph in the separate catalog.

Precautions for use

1.  Never inject air when the air spring is unloaded.
2.  Be sure to remove the air before removing the air spring from the equipment or moving the equipment.
3.  Be careful not to damage the rubber bellows of the air spring during installation and use.
     Provide a protective cover if there is a risk of contact with foreign matter.
4.  The ambient temperature for use should be -20°C to +60°C.
     In environments exceeding 40°C, the life of air springs may be shortened.
5.  Be careful not to let acids, alkalis, organic solvents, lubricating oils, etc. adhere to the rubber bellows.
     In the unlikely event that it adheres, wash it with water immediately.
6.  Use the air spring height within the range described in the catalog.
7.  If the rubber bellows has a scratch reaching the reinforcing cord or an abnormal bulge, replace it immediately.
8.  Make the installation surface of the air spring as flat as possible so that the entire plate surface receives the load.
     Also, do not apply tension to the piping tube.
9.  When using for anti-vibration purposes, keep the internal pressure below 0.5MPa.
     When using for actuator applications, keep the internal pressure below 0.7 MPa. This 0.7MPa includes the instantaneous maximum internal pressure.
     *For the usable range, please refer to the dimension/characteristics graph separately.
10.Use the 2-stage and 3-stage types only for actuator applications, and do not use them for vibration isolation.
     Also, please do not hold for more than 10 minutes at the standard height or higher.
11.Do not weld the metal part of the air spring.
12.For anti-vibration purposes, do not use air springs for equipment that meets the following conditions.
     ①: When the operating speed (or operating stroke speed) of the device is close to the natural frequency of the air spring, 3 to 6 Hz.
     This is the case, for example, for presses below 500 rpm.
     ②: For devices whose rotational speed rises and falls very slowly when starting and stopping, and whose resonance state continues for a long time.
     ③: Not applicable to (1), but the excitation force of the equipment is strong, and as a result, the amplitude of the air spring becomes excessive at the normal rotation speed.

Main use

Anti-vibration for industrial machinery

Vibrating screens, vibrating conveyors, concrete block machines, concrete product manufacturing machines, commercial washing machines, centrifuges, compressors, vacuum pumps, high-speed presses

*In actual use (especially for items that have no track record of specifications), additional mass, dampers, stoppers, guides, etc. are used as necessary to achieve optimal matching that achieves both anti-vibration effects and vibration of equipment at a high level. , it is necessary to seek while doing trial and error.

Vibration isolation for precision equipment

Exposure equipment, electron microscope, three-dimensional measuring equipment, laser-related testing equipment, liquid crystal inspection equipment

Actuator

Lifters, clamps, belt tension adjustment, roll pressure adjustment, ride-on game machines, roller coaster brakes

CONTACT

Feel free to contact us for a quote or inquiry

Feel free to contact us for a quote or inquiry

日本語
한국어
English
简体中文