Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-75 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 SAIJ32BX135-75
The AirTAC SAIJ32X135-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 135 mm travel back by up to 75 mm. This creates a wide 60-135 mm usable stroke window, allowing precise end-position tuning at commissioning without swapping the cylinder or bolting on external stops. It delivers 345 N of pull force at 0.5 MPa, making it suitable for light-load manipulation.
This variant is configured with a SUS304 stainless steel rod (code B) for superior corrosion resistance, a PT tapered port thread, and no internal magnet. The extruded aluminum barrel incorporates sensor grooves on both sides, and the mounting interface utilizes a reduced subset of ISO 15552 attachments (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR options. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-75 |
|---|---|
| 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 SAIJ32BX135-75
| 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 SAIJ32BX135-75 Is Used
Product Changeover
Rapidly dial in the 60-135 mm travel window during format size changes on packaging lines without replacing the actuator.
Machine Setup
Fine-tune the retract end-position during initial commissioning to perfect the gripping or pressing depth without external stoppers.
Variable End Stops
Adjust the stroke dynamically for testing different material thicknesses or positioning depths in light-force assembly rigs.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-75 the Right Cylinder?
Choose this 32 mm bore when an application demands a highly variable end-stop within a compact footprint, delivering 402 N push at 0.5 MPa. If your setup requires greater force, stepping up to the 40 mm bore yields 528 N of pull force at the same pressure. The 75 mm adjustment range is particularly valuable for product changeovers on a line, letting operators dial in a new end position rapidly. Because the nominal stroke is 135 mm, an external guide is not strictly required, but the 12 mm rod and M10x1.25 thread handle limited side loads well.
For load-holding without continuous air pressure, note that the rear adjuster and air cushions act only as stops and deceleration devices, not as locks. You would need an external rod lock or a different cylinder series like SAIL or BSAI for true fail-safe holding. To replace an ISO 15552 cylinder, match the 32 mm bore, 135 mm stroke, 75 mm adjustment, PT port, and the specific mounting accessory, noting that no -S magnet is present for CMSE or DMSE sensors here.
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 SAIJ32BX135-75 FAQ
The rear adjuster screw acts as a mechanical stop that shortens the 135 mm nominal stroke by up to 75 mm, giving a usable travel window of 60 to 135 mm. It sets the end position but does not lock the load without live air pressure.
At 0.5 MPa operating pressure, it provides 402 N of push force and 345 N of pull force. It can deliver up to 82 kgf at its maximum 1.0 MPa pressure rating.
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