Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 25mm 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
- Stroke25 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20S
The AirTAC SAIJ32X25-20-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 5-25 mm usable travel window, allowing you to dial back the 25 mm nominal stroke by up to 20 mm during commissioning. Delivering 402 N of push force at 0.5 MPa, it suits light-duty tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting.
This variant uses a SUS304 stainless steel rod (code B) for corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. It features PT tapered ports and adjustable air cushions at both ends. Remember, the rear adjuster acts as a travel stop, not a lock; it cannot hold a load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 25 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 SAIJ32BX25-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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 SAIJ32BX25-20S Is Used
Precision End-Stop Tuning
Dial in the exact 5 to 25 mm travel window during machine commissioning to accommodate varying product sizes without adding external mechanical stops.
Changeover Adjustments
Quickly modify the retract end-position on packaging lines when switching between different product lengths, minimizing downtime.
Light-Force Positioning
Move light payloads with 402 N of thrust while relying on the rear screw to set the final resting position accurately.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20S the Right Cylinder?
Choose this 32 mm bore when a compact, light-force actuator is needed and 402 N at 0.5 MPa is sufficient. The adjustable stroke is perfect for setups requiring exact end-position tuning without swapping cylinders. If your application needs more force, stepping up to the 40 mm bore yields 628 N. For load-holding without continuous air pressure, select a SAIL or BSAI cylinder instead. To match this ISO 15552 replacement exactly, specify bore 32, stroke 25, 20 mm adjustment, PT port, and the -S magnet.
Because the 25 mm stroke is short, side-loading is minimal, but the 12 mm rod and M10x1.25 thread still require a guide for lateral loads. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ32BX25-20S FAQ
The rear adjuster screw lets you shorten the 25 mm nominal stroke by up to 20 mm, creating a 5 to 25 mm usable travel window. It acts as a mechanical stop to fine-tune the end position without changing the cylinder.
At 0.5 MPa operating pressure, it provides 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 82 kgf.
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