Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 75mm 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
- Stroke75 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-20
The AirTAC SAIJ32X75-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to shorten the effective travel without external stops. It provides a usable window of 55 to 75 mm, enabling precise end-position tuning during commissioning. Equipped with a SUS304 stainless steel rod and PT tapered port threads, it handles demanding environments while delivering 402 N of push force at 0.5 MPa.
This model features a 12 mm diameter rod with an M10x1.25 thread, providing a robust interface for standard attachments. The extruded aluminum barrel includes sensor grooves on both sides, allowing for the direct mounting of CMSE reed or DMSE electronic sensors if a magnet is specified later. The rear adjuster acts purely as a mechanical stop to set the retract position and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 75 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 SAIJ32BX75-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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 SAIJ32BX75-20 Is Used
End-Position Tuning
Dial in the exact retract distance within a 55-75 mm window during machine commissioning without swapping hardware.
Product Changeover
Quickly adapt end-stops on a packaging line when handling slightly different package dimensions.
Assembly Fixtures
Use the 402 N push force to press small components, relying on the rear stopper to prevent overtravel.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-20 the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N of push force at 0.5 MPa; step up to a 40 mm bore if you need 628 N. An adjustable stroke is ideal for machine setups requiring variable end-stops or product-size changeovers, offering more flexibility than a fixed-stroke SAI cylinder. For load-holding without live air pressure, this cylinder will not lock, so consider an AirTAC SAIL or BSAI series instead. It is dimensionally interchangeable with ISO 15552 cylinders, utilizing a PT G1/8 port and supporting Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ32BX75-20 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 can deliver up to 82 kgf.
The rear adjuster screw lets you mechanically shorten the 75 mm nominal stroke by up to 20 mm, creating a usable travel window of 55 to 75 mm. This stopper only sets the end position and does not lock the load without continuous air pressure.
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