Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 90mm 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
- Stroke90 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-20S
The AirTAC SAIJ32X90-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 70-90 mm usable travel window. Equipped with a SUS304 stainless steel rod, it delivers 402 N of push force at 0.5 MPa, making it well-suited for lighter-duty precision tasks. The extruded aluminum barrel includes sensor grooves on both sides for straightforward detection installation.
This model carries the -S magnet option for use with AirTAC CMSE reed and DMSE electronic sensors. It uses a PT G1/8 port and offers variable air cushions at both ends to manage end-of-stroke impacts. The rear adjustment screw allows you to dial in the exact retract position during commissioning without adding external stops.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 90 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 SAIJ32BX90-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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 SAIJ32BX90-20S Is Used
Machine Changeover
Dial in the 70-90 mm retract position during product size changes without swapping out the entire cylinder assembly.
End-Stop Tuning
Fine-tune the final resting position of small actuators during commissioning to avoid mechanical binding.
Sensor Integration
Leverage the built-in -S magnet with DMSE electronic sensors to confirm the adjusted end position.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-20S the Right Cylinder?
Choose this 32 mm bore when an application requires precise positioning of small loads, as it yields a 345 N pull force at 0.5 MPa. If your setup demands significantly more thrust, stepping up to the 40 mm bore provides 528 N of pull force. The adjustable 70-90 mm window is ideal for machine changeovers, whereas a fixed-stroke SAI cylinder is better when the travel distance never varies. Remember that the rear adjuster functions strictly as a travel stop, not a locking device; the cylinder cannot hold a load without live air. For dead-end holding without pressure, consider an external pilot-operated check valve or the SAIL lock cylinder.
To match this ISO 15552 dimensionally interchangeable cylinder, confirm the 90 mm nominal stroke, 20 mm adjustment range, PT G1/8 port, and your preferred mounting style from the SAIJ set: 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 SAIJ32BX90-20S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach a maximum push force of 724 N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 90 mm nominal stroke by up to 20 mm, creating a 70-90 mm usable travel window. It only sets the end position and does not lock the load without air pressure.
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