Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-75 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 SAIJ32BX250-75
The AirTAC SAIJ32X250-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 250 mm nominal stroke by up to 75 mm. This creates a usable travel window of 175 to 250 mm, ideal for fine-tuning end positions during commissioning without swapping out the physical actuator. It delivers a push force of 402 N and a pull force of 345 N at 0.5 MPa.
Built with a SUS304 stainless steel rod (code B), this 32 mm bore unit handles demanding environments while resisting corrosion. The extruded aluminum barrel features sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. It operates at speeds between 30 and 800 mm/s and uses a G1/8 port with PT tapered threading.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-75 |
|---|---|
| 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 SAIJ32BX250-75
| 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 SAIJ32BX250-75 Is Used
Machine Changeover
Quickly adjust the 175-250 mm travel window to accommodate new product sizes on a packaging line without changing the cylinder.
End-Position Tuning
Fine-tune the retract end position during commissioning to achieve exact placement without adding external stopper blocks.
Variable Diverter Stroke
Adjust the stroke length on the fly for a conveyor sorting arm that handles packages of varying depths.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-75 the Right Cylinder?
Choose this 32 mm bore actuator when an application requires precise variable end-stops rather than a fixed-length SAI cylinder. If your setup demands higher thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Because the nominal stroke is 250 mm, an external guide is recommended to prevent side-loading damage to the 12 mm rod and M10x1.25 rod thread.
The rear adjuster acts strictly as a mechanical stop to set deceleration and travel limits, meaning it will not hold a load without continuous live air pressure. For load-holding requirements, consider an external pilot-operated check valve or the related SAIL lock cylinder. This model is dimensionally interchangeable per ISO 15552 and supports a mounting subset of 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 SAIJ32BX250-75 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides a push force of 402 N and a pull force of 345 N. At the maximum 1.0 MPa pressure, it reaches 82 kgf.
The rear adjuster screw allows you to shorten the effective travel by up to 75 mm from the 250 mm nominal stroke, providing an adjustable operating range of 175 to 250 mm. It functions as a travel stop and does not lock the load without air pressure.
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