Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-40S 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 SAIJ32BX270-40S
The AirTAC SAIJ32X270-40-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, letting you dial back the 270 mm nominal travel by up to 40 mm to create a precise 230-270 mm usable window. Delivering 402 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for corrosion resistance and includes a magnet for CMSE or DMSE sensors.
The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position during commissioning without adding external stops. It uses a PT tapered port and operates at 30-800 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set omits FB, CA, CB, and CR options.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-40S |
|---|---|
| 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 SAIJ32BX270-40S
| 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 SAIJ32BX270-40S Is Used
End-Position Tuning
Dial in the exact retract distance within the 230-270 mm window during machine commissioning without swapping hardware.
Product Changeover
Quickly reset the cylinder's stroke stop on the line when handling different product sizes or formats.
Light Assembly Clamping
Apply up to 402 N of precise clamping force at 0.5 MPa for light-duty assembly and testing fixtures.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-40S the Right Cylinder?
Choose this 32 mm bore when you need 402 N of thrust at 0.5 MPa and on-the-fly end-position tuning for product changeovers. If your process requires less force, a smaller bore would suffice, but stepping up to a 40 mm bore yields 628 N. Because the stroke is 270 mm, ensure your setup handles side loads, as long unsupported strokes still need an external guide. The adjuster is a travel stop, not a lock; for load-holding without live air, select a SAIL or BSAI cylinder. For ISO 15552 replacement, match the 32 mm bore, 270 mm stroke, 40 mm adjustment, PT port, and -S magnet.
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 SAIJ32BX270-40S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 40 mm from the nominal 270 mm, providing a usable travel window of 230-270 mm to fine-tune the end position without adding external stops.
No. The rear adjuster is a travel stop, not a lock. The cylinder cannot hold a load without live air; for load-holding, use a SAIL or BSAI cylinder or an external rod lock.
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