Airtac Adjustable Cylinder SAIJ32 SAIJ32AX25-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX25-20S 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 SAIJ32AX25-20S
The AirTAC SAIJ32X25-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 402N push force at 0.5 MPa and features a 25mm nominal stroke that can be dialed back by up to 20mm, yielding a highly precise 5-25mm usable travel window for exact product changeovers.
This variant includes a magnetic piston for position detection with CMSE reed or DMSE electronic sensors. It utilizes SUS420J2 stainless steel rod material (code A) for corrosion resistance and features PT tapered port threads (G1/8) alongside dual-side sensor grooves on the extruded aluminum barrel.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX25-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX25-20S |
|---|---|
| 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 SAIJ32AX25-20S
| 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 SAIJ32AX25-20S Is Used
Short-Stroke Clamping
Dial in the exact 5-25mm clamping travel for delicate workpieces, preventing deformation during machine setup.
Product Changeover
Quickly adjust the end-stop position on a packaging line when switching between product sizes without swapping the cylinder.
Sensor Equipped Testing
Utilize the -S magnet with DMSE electronic sensors to confirm exact end-of-stroke positions in automated test fixtures.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX25-20S the Right Cylinder?
Choose this 32mm bore when an application demands exact end-position tuning at commissioning without adding external stops. If you need higher force, stepping up to the 40mm bore yields a 628N push at 0.5 MPa. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series. Because the 25mm stroke is short, side-load risks are minimal, but always ensure the rod thread (M10x1.25) is aligned to prevent binding.
To match this ISO 15552 cylinder for a replacement, verify the 32mm bore, 25mm stroke, 20mm adjustment range, PT G1/8 port, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ32AX25-20S FAQ
At 0.5 MPa operating pressure, this 32mm bore cylinder provides a push force of 402N and a pull force of 345N. The maximum push force is 724N at 0.9 MPa.
The rear adjuster screw allows you to shorten the 25mm nominal stroke by up to 20mm. This creates a 5-25mm usable travel window, letting you fine-tune the end position at commissioning without external stops.
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