Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 55mm 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
- Stroke55 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-50
The AirTAC SAIJ32X55-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 55 mm travel by up to 50 mm. This creates a highly versatile 5 to 55 mm usable window, perfect for dialing in exact end positions during machine commissioning without swapping hardware. It delivers 402 N of push force at 0.5 MPa and features a SUS420J2 stainless steel rod for enhanced corrosion resistance.
This model uses a PT G1/8 port and includes variable air cushions at both ends to manage deceleration. The rear screw acts purely as a travel stop and does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 55 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 SAIJ32AX55-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×55 | 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 SAIJ32AX55-50 Is Used
Machine Changeover
Quickly adapt end positions for different product sizes on a packaging line without replacing the cylinder or adding external stopper blocks.
Prototype Setup
Fine-tune the exact retraction point during initial commissioning to perfect a 5 to 55 mm pick-and-place motion.
Variable End Stops
Dial in the precise stroke limit for delicate pressing or sensing tasks where a fixed 55 mm travel might overshoot.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-50 the Right Cylinder?
Choose this 32 mm bore when your application requires precise positioning within a 5 to 55 mm travel window. If you need more force, stepping up to the 40 mm bore provides 628 N of push force at 0.5 MPa. The adjustable stroke is ideal for product changeovers where end-stops vary, eliminating the need to buy multiple fixed-stroke SAI cylinders.
This configuration features a PT tapered port, a SUS420J2 stainless steel rod, and no magnet. It supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the stroke is under 300 mm, side-load concerns are minimal, though external guides are still recommended for optimal cylinder longevity.
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 SAIJ32AX55-50 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 a maximum push force of 724 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective travel by up to 50 mm. This means the 55 mm nominal stroke can be fine-tuned down to a 5 mm effective stroke, giving you a 5 to 55 mm usable window.
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