Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-50 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 SAIJ32BX550-50
The AirTAC SAIJ32X550-50 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 500-550 mm, allowing you to dial back the 550 mm nominal stroke by up to 50 mm during commissioning. Delivering 402 N of push force at 0.5 MPa, it suits lighter-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This variant uses a SUS304 stainless steel rod for corrosion resistance and a PT tapered port thread. The rear adjuster acts strictly as a mechanical stop to fine-tune the end position without swapping the cylinder, but it does not hold the load without live air pressure. The mounting interface covers Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-50 |
|---|---|
| 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 SAIJ32BX550-50
| 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 SAIJ32BX550-50 Is Used
Machine Setup Fine-Tuning
Dial in the exact 500 to 550 mm end position during commissioning without replacing the cylinder or adding external mechanical stops.
Product Size Changeover
Quickly adapt the stroke length on automated lines handling varying product dimensions by adjusting the rear screw up to 50 mm.
Light-Force Positioning
Utilize the 402 N push force at 0.5 MPa for precise, lighter-duty handling tasks requiring a variable end-of-travel stop.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-50 the Right Cylinder?
Choose this 32 mm bore when your application requires a lighter force class than the 40 mm bore, which provides 628 N of push force at 0.5 MPa. The adjustable stroke is ideal for machine setups requiring variable end stops or product changeovers, avoiding the need for fixed-stroke SAI cylinders or external stopper blocks. Because the nominal stroke is 550 mm, the 12 mm rod demands an external guide to prevent excessive side-loading and buckling. For any load-holding requirements without continuous air pressure, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster is not a lock.
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 SAIJ32BX550-50 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 acts as a mechanical stop, allowing you to shorten the effective stroke from 550 mm down to 500 mm. It sets the travel end but does not lock or hold the load without live air pressure.
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