Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-30
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-30 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 SAIJ32BX250-30
The AirTAC SAIJ32X250-30 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 220 to 250 mm, allowing you to dial back the standard 250 mm stroke by up to 30 mm. This bore generates 402N of push force at 0.5 MPa and 724N at 0.9 MPa, making it suitable for light-duty positioning tasks.
This specific SKU is configured with a SUS304 stainless steel rod (option B) and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches, though this unit is supplied without a piston magnet. The rear adjuster acts purely as a mechanical stop to fine-tune the end position and must not be confused with a load-holding lock.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-30 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-30 |
|---|---|
| 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 SAIJ32BX250-30
| 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 SAIJ32BX250-30 Is Used
Machine Changeover
Dial in the 220 to 250mm travel window during product size transitions without physically swapping the cylinder or adding external stopper blocks.
End-Position Tuning
Use the rear 30mm adjuster to fine-tune the exact retraction point during machine commissioning, absorbing setup tolerances directly at the cylinder.
Light-Duty Positioning
Leverage the 402N push force at 0.5 MPa and SUS304 rod for precise, light-load placement tasks in packaging or small-assembly lines.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-30 the Right Cylinder?
Choose this 32mm bore when your application requires precise end-position tuning at commissioning without adding external stops. If you need greater thrust, stepping up to the 40mm bore yields 628N of push force at 0.5 MPa. Conversely, lighter duties might use a smaller profile. Because this model features a 250mm stroke, which is significant relative to the 12mm rod diameter, an external guide is recommended to prevent excessive side-loading.
The rear adjuster and variable air cushions decelerate the load but do not hold it without live air pressure. For true load-holding without continuous air, consider the SAIL or BSAI series. To match this ISO 15552 cylinder, specify the 32mm bore, 250mm stroke, 30mm adjustment, PT ports, SUS304 rod, and your required mounting option from the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, or 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 SAIJ32BX250-30 FAQ
At 0.5 MPa it provides 402N push and 345N pull force, increasing to 724N push at 0.9 MPa. The operational speed range is 30-800 mm/s.
The rear adjuster acts as a mechanical stop, allowing you to shorten the 250mm nominal stroke by up to 30mm, creating a 220-250mm usable travel window. It is a stop, not a lock, and does not hold the load without live air.
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