Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 270mm 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
- Stroke270 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50S
The AirTAC SAIJ32X270-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 220 to 270 mm. It delivers a 0.5 MPa push force of 402 N and pull force of 345 N, utilizing a PT G1/8 port and a 12 mm SUS420J2 stainless steel piston rod. The extruded aluminum barrel features sensor grooves on both sides for straightforward position detection.
Because this is an adjustable-stroke variant, you can fine-tune the retract end-position at commissioning without swapping out the cylinder or adding external stops. The rear adjuster functions purely as a travel stop and works alongside the variable air cushions at both ends, but it does not lock or hold the load without live air pressure. For load-holding requirements, consider an external rod lock or related SAIL and BSAI series cylinders.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 270 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 SAIJ32AX270-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×270 | 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 SAIJ32AX270-50S Is Used
Machine Changeovers
Dial in the exact retract position between 220 and 270 mm during product size changeovers without disassembling the line or adding physical shims.
Commissioning Tuning
Fine-tune the end-of-stroke position during initial setup to perfectly time machine sequences, using the rear stopper instead of swapping cylinders.
Light-Duty Positioning
Apply the 402 N push force to move light fixtures or stops into place, relying on the external adjuster to set the precise travel limit.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50S the Right Cylinder?
Choose this 32 mm bore when your application requires a 402 N push force at 0.5 MPa, stepping down from a 40 mm bore (628 N) if you need to reduce the footprint and physical size. The adjustable stroke is ideal for machines that undergo frequent product changeovers, allowing you to dial in the exact end-stop between 220 and 270 mm on the fly. If you need to hold a load statically without continuous air pressure, the SAIJ adjuster will not act as a brake; you would need to specify a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 270 mm stroke, 50 mm adjustment range, PT G1/8 port, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, intentionally omitting FB, CA, CB, and CR. Since the 270 mm stroke is relatively long for a 32 mm bore, ensure you provide an external guide to prevent excessive side-loading on the 12 mm rod.
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 SAIJ32AX270-50S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides a push force of 402 N and a pull force of 345 N. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster allows you to shorten the nominal 270 mm stroke by up to 50 mm, giving an effective travel window of 220 to 270 mm. The adjuster acts as a mechanical stop and does not lock the load without air pressure.
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