Airtac Adjustable Cylinder SAIJ32 SAIJ32AX300-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX300-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 300mm 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
- Stroke300 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX300-40
The AirTAC SAIJ32X300-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down to 260 mm from its 300 mm nominal length. Delivering a push force of 402 N at 0.5 MPa, it fits compact pneumatic setups requiring precise end-positioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This variant uses a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance compared to standard carbon steel. The rear adjustment screw acts purely as a mechanical stop to set the retract end-position during commissioning; it does not lock or hold the load without live air pressure. For load-holding applications without continuous air supply, consider the SAIL or BSAI series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX300-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX300-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 300 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 SAIJ32AX300-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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 SAIJ32AX300-40 Is Used
Machine Changeovers
Dial in the 260-300 mm travel window during product size changes without physically swapping the cylinder or repositioning hard stops.
End-Position Tuning
Use the 40 mm rear adjuster to precisely set the retract distance at commissioning, compensating for mechanical tolerances in the fixture.
Variable Stops
Provide adjustable end-stops for sorting or diverting mechanisms where the actuation distance needs occasional adjustment.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX300-40 the Right Cylinder?
Choose this 32 mm bore if your application requires less force than the 40 mm bore (which provides 628 N at 0.5 MPa) but still needs a long 300 mm travel. The adjustable stroke is ideal for machine changeovers where the exact end-of-stroke varies slightly by product size, eliminating the need to swap cylinders or add external stops. Because the nominal stroke is 300 mm, the 12 mm rod diameter should be guided externally to prevent excessive side-loading and buckling.
When matching an ISO 15552 replacement, verify the 300 mm stroke, 40 mm adjustment range, PT G1/8 port thread, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). This specific SKU lacks a magnet, so position sensing requires external switches rather than internal CMSE or DMSE electronic sensors.
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 SAIJ32AX300-40 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides a push force of 402 N and a pull force of 345 N. The maximum push force is 724 N at 0.9 MPa.
The SAIJ32X300-40 has a rear mechanical stopper that allows you to shorten the 300 mm nominal stroke by up to 40 mm, giving an effective travel window of 260-300 mm. It functions as a travel stop, not a load lock.
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