Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-30
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-30 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 SAIJ32AX250-30
The AirTAC SAIJ32X250-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 220 to 250 mm usable travel window, allowing you to dial back the 250 mm nominal stroke by up to 30 mm during commissioning. Delivering 402 N of push force at 0.5 MPa, it fits compact actuation needs while using a PT tapered G1/8 port.
This model features a SUS420J2 stainless steel rod for enhanced durability against moisture and minor side loads. The extruded aluminum barrel includes sensor grooves on both sides, and pneumatic cushioning at both ends decelerates the rod before the adjustable hard stop is reached.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-30 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-30 |
|---|---|
| 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 SAIJ32AX250-30
| 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 SAIJ32AX250-30 Is Used
Machine Setup Tuning
Fine-tune the 220-250 mm travel window during initial commissioning to perfectly time machine movements without machining external spacers.
Product Changeover
Quickly adjust the retract end-position by up to 30 mm when switching product sizes on a packaging line, minimizing downtime.
Fixture Positioning
Dial in the exact end-stop for delicate clamping or pressing tasks where a fixed 250 mm stroke would apply inaccurate travel.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-30 the Right Cylinder?
Choose this 32 mm bore when 402 N of thrust at 0.5 MPa is sufficient; step up to the 40 mm bore if you need 628 N to move heavier fixtures. An adjustable stroke is selected over a fixed SAI when a machine requires variable end-stops for product changeovers without swapping cylinders or adding external stops.
Since this is a 250 mm stroke, long unsupported loads should use an external guide to prevent rod binding. The rear adjuster acts only as a travel stop and does not hold the load without live air—use a SAIL or BSAI cylinder for fail-safe locking. This unit is dimensionally interchangeable per ISO 15552 and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ32AX250-30 FAQ
At 0.5 MPa it provides 402 N of push force and 345 N of pull force. At 0.7 MPa the push force increases to 563 N.
The rear adjuster screw lets you shorten the 250 mm nominal stroke by up to 30 mm, creating a 220 to 250 mm usable travel window. It acts as a mechanical stop, so you still need live air to maintain position.
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