Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 155mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ32 mm
- Stroke155 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-50S
The AirTAC SAIJ32X155-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 105-155 mm usable travel window. Delivering 402 N of push force at 0.5 MPa, it suits light-duty positioning. The -S magnet integrates with CMSE reed and DMSE electronic sensors via the dual-side barrel grooves.
This variant uses a SUS304 stainless steel rod for corrosion resistance and PT tapered port threads. The rear adjuster acts purely as a travel stop to fine-tune end positions during commissioning; it does not lock the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 155 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×155 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-50S Is Used
Machine Changeover
Fine-tune the 105-155 mm travel window during product size changes on a packaging line without bolting on external stops.
Variable End-Stop Setup
Dial in the exact retract position at commissioning using the rear adjuster screw, saving time over fixed-stroke SAI cylinders.
Light-Duty Positioning
Move small jigs or fixtures with 402 N of push force while relying on the SUS304 rod for corrosion resistance.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-50S the Right Cylinder?
Choose this 32 mm bore when you need 402 N of push force at 0.5 MPa, stepping down from a 40 mm bore that yields 628 N. An adjustable stroke is ideal for machine changeovers, letting you dial in the 105-155 mm window without swapping cylinders or adding external stops. For load-holding without live air, select the SAIL or BSAI series instead, as the SAIJ adjuster is a stop, not a lock.
To replace an ISO 15552 cylinder, match the 32 mm bore, 155 mm stroke, 50 mm adjustment, PT G1/8 port, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-50S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach up to 724 N at 0.9 MPa.
The rear adjuster allows you to shorten the 155 mm nominal stroke by up to 50 mm, creating a usable travel window of 105-155 mm. This stopper sets the end position but does not hold the load without live air.
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