Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 290mm 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
- Stroke290 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-20
The AirTAC SAIJ32X290-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 20 mm. This creates a usable 270-290 mm travel window, enabling precise end-position tuning at commissioning without swapping out the unit. It delivers 402 N of push force at 0.5 MPa, utilizing a PT G1/8 port and a 12 mm SUS420J2 stainless steel rod for reliable performance.
The extruded aluminum barrel incorporates sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic switches if a magnet is later required. Mounting options include the reduced SAIJ set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB and CA variants. The rear adjuster acts solely as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 290 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 SAIJ32AX290-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×290 | 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 SAIJ32AX290-20 Is Used
Machine Setup Changeover
Fine-tune the 270-290 mm travel window during product size changes on a packaging line, dialing in the exact end position without adding external mechanical stops.
Variable End-Stop Diverter
Adjust the retract position on the fly for a pneumatic diverter arm to accommodate different package widths arriving down the conveyor.
Component Seating Calibration
Trim the stroke by up to 20 mm to perfectly seat delicate components during assembly, preventing over-travel and crushing without recalibrating the entire machine.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-20 the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N of push force at 0.5 MPa and you need variable end-stops for product changeovers rather than a fixed-stroke SAI cylinder. If your setup needs higher thrust, stepping up to the 40 mm bore yields 628 N of push force. Because the 290 mm stroke is relatively long for this bore size, an external guide is recommended to prevent excessive side-loading on the 12 mm rod thread.
As a dimensionally interchangeable ISO 15552 cylinder, this model matches standard mounting footprints. It uses a tapered PT G1/8 port, SUS420J2 stainless steel rod material, and lacks a standard magnet. Note that the rear adjuster functions as a stop, not a lock; for true load-holding without live air, consider the SAIL or BSAI series.
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 SAIJ32AX290-20 FAQ
At an operating pressure of 0.5 MPa, 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 allows you to shorten the 290 mm nominal stroke by up to 20 mm, providing a usable travel window of 270 to 290 mm. This stopper sets the end position but does not lock or hold the load without continuous air pressure.
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