Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 90mm 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
- Stroke90 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50
The AirTAC SAIJ32X90-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 50 mm. This creates a highly flexible 40-90 mm usable stroke window, enabling fine end-position tuning at commissioning without swapping the cylinder or adding external stops. It delivers 402N of push force at 0.5 MPa and integrates an extruded aluminum barrel with sensor grooves on both sides.
This variant is configured with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered ports. The 12 mm rod and M10x1.25 thread provide robust load transfer, though long unsupported strokes still require an external guide. The rear adjuster acts purely as a travel stop and works alongside the 27 mm variable air cushions at both ends to decelerate the load, but it does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 90 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 SAIJ32BX90-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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 SAIJ32BX90-50 Is Used
Machine Changeover
Dial in the retract distance from 40 to 90 mm on the fly when swapping product sizes on a packaging line, eliminating the need to physically swap cylinders.
End-Position Tuning
Fine-tune the final retract position during commissioning using the rear stopper screw, achieving exact placement without machining custom external stops.
Variable Assembly Stops
Adapt the cylinder's effective travel window for short-run assembly tasks that require different resting positions across multiple product variants.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50 the Right Cylinder?
Choose this 32 mm bore when your application requires 402N of push force at 0.5 MPa (or 563N at 0.7 MPa) alongside a dynamically adjustable end-stop. If your project demands greater thrust, stepping up to the 40 mm bore yields 628N at 0.5 MPa, while dropping to a smaller bore would sacrifice too much power for a 90 mm travel window. The adjustable stroke is ideal for machine setups and product changeovers where the exact retract distance varies, replacing the need for a fixed-stroke SAI cylinder.
When integrating this cylinder, note that it uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. Because the rear adjuster and air cushions only set the travel end and deceleration, they cannot hold a load without live air; for dead-end load-holding, select the SAIL or BSAI series instead. This unit is dimensionally interchangeable per ISO 15552.
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 SAIJ32BX90-50 FAQ
The rear adjuster screw lets you shorten the nominal 90 mm stroke by up to 50 mm, providing a usable travel window of 40-90 mm. The adjuster acts as a mechanical stop for the retract end, allowing you to set the exact end position without replacing the cylinder.
At 0.5 MPa it provides 402N of push force and 345N of pull force. At 0.7 MPa, the push force increases to 563N.
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