Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 45mm 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
- Stroke45 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-20
The AirTAC SAIJ32X45-20 is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, delivering 402 N of push force at 0.5 MPa. It features a SUS420J2 stainless steel rod and a PT tapered port thread. The integrated rear adjusting screw allows you to dial back the nominal 45 mm travel, creating a 25-45 mm usable stroke window for precise end-position tuning.
This 32 mm bore actuator operates at speeds from 30 to 800 mm/s and includes variable air cushions at both ends. The rear adjuster acts purely as a travel stop for commissioning flexibility, meaning it will not hold a load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of position switches.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 45 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 SAIJ32AX45-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×45 | 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 SAIJ32AX45-20 Is Used
Machine Changeover
Fine-tune the 25-45 mm travel window during product size changeovers without disassembling the actuator.
Exact End-Stops
Dial in the precise retract position for delicate picking or pressing tasks where a fixed 45 mm stroke is too long.
Sensor Calibration
Set the exact physical end-stop before locking down CMSE or DMSE sensors in the dual-side barrel grooves.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX45-20 the Right Cylinder?
Choose this adjustable-stroke model when your machine setup requires fine-tuning the retract end-position without swapping cylinders or adding external stops. If your application needs slightly less force, stepping down is not an option from this bore, but stepping up to a 40 mm bore yields 628 N of push force at 0.5 MPa. For load-holding without continuous air pressure, this plain cylinder is insufficient; consider the SAIL or BSAI series instead.
As an ISO 15552 dimensionally interchangeable cylinder, replacing a unit requires matching the 32 mm bore, 45 mm stroke, PT port thread, and the 20 mm adjustment range. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the 45 mm stroke is short, side-load risks are minimal, but always rely on external guides for heavy loads.
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 SAIJ32AX45-20 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 up to 724 N of push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from 45 mm down to as little as 25 mm. It sets the end-position but does not lock the load without live air pressure.
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