Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-75 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 SAIJ32AX250-75
The AirTAC SAIJ32X250-75 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 175-250 mm, allowing you to dial back the 250 mm nominal stroke by up to 75 mm during commissioning. It delivers a 0.5 MPa push force of 402 N and a pull force of 345 N.
This model uses a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance over standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, and the PT tapered ports are G1/8. The rear adjuster acts purely as a travel stop to fine-tune the end position without needing external stops.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-75 |
|---|---|
| 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 SAIJ32AX250-75
| 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 SAIJ32AX250-75 Is Used
Machine Setup and Changeover
Fine-tune the retract end position by up to 75 mm during product line changeovers without swapping the cylinder or adding external stopper blocks.
Variable End-Stop Positioning
Dial in the exact travel within the 175-250 mm window during commissioning to achieve precise end-of-stroke positioning for varying material lengths.
Light-Duty Clamping
Provides 402 N of clamping force at 0.5 MPa, suitable for holding lighter workpieces securely in place during machining or assembly processes.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-75 the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N of push force at 0.5 MPa. If you need less force, a smaller bore is suitable; if you need significantly more thrust, stepping up to a 40 mm bore provides 628 N. The adjustable stroke is ideal for machine setups requiring variable end-stops or product-size changeovers, offering flexibility a fixed-stroke SAI cylinder cannot.
This SAIJ model is dimensionally interchangeable per ISO 15552. Configuration details: 250 mm stroke, 75 mm adjustment, PT ports, and no magnet. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the nominal stroke is 250 mm, an external guide is recommended for long unsupported loads. Note that the rear adjuster is a stop, not a lock; for load-holding without live air, consider SAIL or BSAI cylinders.
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 SAIJ32AX250-75 FAQ
At 0.5 MPa, the SAIJ32X250-75 cylinder provides a push force of 402 N and a pull force of 345 N. At the maximum operating pressure of 1.0 MPa, it delivers a push force of 801 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from 250 mm down to as little as 175 mm. It sets the travel end but does not lock or hold the load without live air pressure.
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