Airtac Adjustable Cylinder SAIJ32 SAIJ32AX550-30
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX550-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 550mm 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
- Stroke550 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX550-30
The AirTAC SAIJ32X550-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel within a 520 to 550 mm window. Using a 32 mm bore, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa. The PT tapered port threads and SUS420J2 stainless steel rod (code A) provide robust durability for general industrial environments.
Because the nominal 550 mm stroke is relatively long for a 32 mm bore, the 12 mm rod diameter and M10x1.25 thread mean an external guide is highly recommended to prevent excessive side loading. This adjustable model omits the FB, CA, CB, and CR mounts, utilizing a reduced set of ISO 15552 attachments (Basic, FA, LB, TC, FTC, TCM1, TCM2) to simplify your design choices.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX550-30 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX550-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 550 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 SAIJ32AX550-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×550 | 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 SAIJ32AX550-30 Is Used
Machine Setup Changeover
Dial in the exact 520 to 550 mm end-stop during product size changes without physically swapping out the entire actuator assembly.
Variable End-Stop Diverter
Adjust the stroke on the fly to accommodate different package lengths on a packaging line, ensuring precise mechanical positioning.
Commissioning Fine-Tuning
Trim the final 30 mm of travel during initial machine commissioning to perfectly align tooling without adding bulky external stops.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX550-30 the Right Cylinder?
Choose this 32 mm bore when your application requires moderate force, but stepping up to a 40 mm bore would be overkill, as the larger size yields 628 N of push force at 0.5 MPa. The adjustable stroke is ideal for product changeovers, letting you dial in the exact end position without swapping the cylinder or adding external stops. For load-holding without live air pressure, note that the rear adjuster acts only as a travel stop, so you would need an external rod lock or a SAIL cylinder instead.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 550 mm stroke, 30 mm adjustment range, PT port thread, and your required mounting style. Since this is a non-magnet version, position sensing is not possible without adding a magnet (-S) for CMSE reed or DMSE electronic switches. Furthermore, at 550 mm of travel, always support the load with an external guide to protect the rod from bending.
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 SAIJ32AX550-30 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, it achieves 82 kgf.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective travel from the nominal 550 mm down to 520 mm. It is a travel stop, not a lock, so it cannot hold the load without live air pressure.
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