Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-75S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 135mm 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
- Stroke135 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-75S
The AirTAC SAIJ32X135-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to trim the effective travel back by up to 75 mm. This yields a highly flexible usable travel window of 60 to 135 mm, letting you dial in exact end positions during commissioning without adding external stops. It delivers 402 N of push force at 0.5 MPa and uses a G1/8 port.
This specific SKU is built with a SUS304 stainless steel rod for superior corrosion resistance and includes a standard magnet for position sensing. The integrated magnet is fully compatible with AirTAC CMSE reed and DMSE electronic sensors fitted into the dual-side sensor grooves on the extruded aluminum barrel. The rear adjuster acts purely as a mechanical stop to set the retract position; it does not lock or hold the load without continuous air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-75S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 135 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 SAIJ32BX135-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×135 | 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 SAIJ32BX135-75S Is Used
Machine Setup & Changeover
Dial in the exact retract distance from 60 to 135 mm during product size changes without swapping the cylinder or bolting on external mechanical stops.
Variable End-Stop Diverter
Acts as an adjustable end-stop for lightweight conveyor diverters where the physical contact position must be shifted on the fly for different package lengths.
Lab Test Fixture Positioning
The SUS304 rod provides corrosion resistance for lab environments, while the 75 mm travel window allows rapid iteration of test contact points without disassembly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-75S the Right Cylinder?
Choose this 32 mm bore when you need 402 N of thrust at 0.5 MPa and significant on-machine travel flexibility. The 75 mm adjustment range is exceptionally wide, making this cylinder ideal for product changeovers on a packaging line where multiple end-stop positions are required from a single unit. If your application requires less fine-tuning or a shorter overall length, a standard fixed-stroke SAI cylinder is simpler, but this SAIJ variant eliminates the need to swap cylinders when stroke requirements vary by up to 75 mm.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 135 mm nominal stroke, PT tapered port thread, and the -S magnet requirement. The available mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because the 12 mm rod and M10x1.25 thread are relatively light, be mindful of side loads; while the adjuster handles end-position tuning, any long unsupported loads still require an external guide. For true load-holding without live air pressure, consider the SAIL or BSAI series instead of relying on the adjuster.
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 SAIJ32BX135-75S FAQ
The rear adjuster screw lets you shorten the nominal 135 mm stroke by up to 75 mm, creating a usable travel window of 60 to 135 mm. It functions as a mechanical stop to fine-tune the retract end position at commissioning, but it does not lock or hold the load without live air pressure.
At 0.5 MPa, it provides 402 N of push force and 345 N of pull force. The -S suffix indicates it includes a standard magnet, designed to work seamlessly with AirTAC CMSE reed switches and DMSE electronic sensors mounted in the barrel grooves.
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