Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-30S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 250mm 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
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-30S
The AirTAC SAIJ32X250-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 220 to 250 mm usable travel window. Built with a SUS304 stainless steel rod (option B) and PT tapered ports, it provides 563 N of push force and 345 N of pull force at 0.5 MPa. This makes it suitable for lighter-duty positioning tasks where a standard SAI fixed-stroke unit would lack setup flexibility.
Because the adjuster acts purely as a mechanical stop at the retract end, it allows precise end-position tuning during commissioning without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact position feedback.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-30S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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 SAIJ32BX250-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 SAIJ32BX250-30S Is Used
Machine Changeover
Dial in the 220-250 mm travel window during product size changes to set new retract endpoints without physically swapping the cylinder or adding external shims.
Light Assembly Positioning
Leverage the 563 N push force at 0.7 MPa to place light components accurately, using the rear stopper to trim the final end position during commissioning.
Sensor-Driven Stops
Utilize the integrated -S magnet with CMSE reed or DMSE solid-state switches in the dual sensor grooves to confirm the adjusted retract position electronically.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-30S the Right Cylinder?
Select this 32 mm bore when your application requires 563 N of push force at 0.7 MPa, which sits neatly below the 879 N push force of the 40 mm bore. The adjustable 220-250 mm travel window is ideal for product changeovers on a line, letting you fine-tune the retract end position on the fly instead of machining custom spacers. For an ISO 15552 replacement match, verify the 250 mm stroke, 30 mm adjustment range, PT port thread, and the -S magnet requirement.
With a 250 mm stroke, the 12 mm rod and M10x1.25 thread provide a robust interface, but long unsupported strokes still need an external guide to prevent side-loading damage. Remember that the rear adjuster is a travel stop, not a lock; the plain SAIJ does not hold its load without live air. For fail-safe load holding, consider the SAIL or BSAI series instead. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ32BX250-30S FAQ
At 0.7 MPa it provides 563 N of push force and 455 N of pull force. At 0.5 MPa, the push force is 402 N. The operational speed range for this 32 mm bore cylinder is 30-800 mm/s.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 250 mm down to 220 mm. It sets the end position but does not lock or hold the load without live air pressure.
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