Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-40S 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 SAIJ32AX250-40S
The AirTAC SAIJ32X250-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 210-250 mm usable travel window by allowing you to trim up to 40 mm from the 250 mm nominal stroke. Delivering 402N of push force at 0.5 MPa, it integrates a SUS420J2 stainless steel rod for enhanced corrosion resistance.
This unit includes a magnet for position sensing and is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical stop to fine-tune the end position during commissioning; it does not lock or hold the load without continuous live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-40S |
|---|---|
| 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 SAIJ32AX250-40S
| 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 SAIJ32AX250-40S Is Used
Machine Changeover
Dial in the 210-250mm travel window during product size transitions to set new end-stops rapidly without hardware swaps.
End-Position Tuning
Fine-tune the retract distance at commissioning using the rear screw, hitting exact mechanical stops without external spacers.
Variable Indexing
Adjust the stroke length on the fly for conveyor sorting mechanisms that handle different package sizes.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-40S the Right Cylinder?
Choose this 32mm bore adjustable-stroke cylinder when your setup requires precise variable end-stops without adding external stops or swapping a fixed-stroke SAI cylinder. If your application needs less push force, stepping down is not an option for ISO 15552 standard series, but if you need higher force, the 40mm bore delivers 628N at 0.5 MPa.
Because the 250mm stroke exceeds 300mm? No, but for any long travel, ensure external guides are used to manage side loads. To match this ISO 15552 replacement exactly: specify 32mm bore, 250mm stroke, 40mm adjustment, PT tapered ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mountings, and a magnet (-S). For load-holding without live air, consider the SAIL or BSAI series.
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 SAIJ32AX250-40S FAQ
At 0.5 MPa, this 32mm bore cylinder provides 402N of push force and 345N of pull force. It operates at speeds ranging from 30 to 800 mm/s.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective travel from 250mm down to 210mm. It only sets the end position and does not lock the load without live air pressure.
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