Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-40 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 SAIJ32BX135-40
The AirTAC SAIJ32X135-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 135 mm nominal stroke by up to 40 mm. This creates a precise 95-135 mm usable travel window, perfect for fine-tuning end positions during machine commissioning without swapping out the physical cylinder. It delivers 402 N of push force at 0.5 MPa and features a SUS304 stainless steel rod for superior corrosion resistance.
This 32 mm bore model uses a G1/8 port and includes adjustable air cushions at both ends to decelerate the load smoothly. The rear adjuster acts strictly as a travel stop for position tuning, not a load-holding lock, so external guides or locking cylinders are required if power fails. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-40 |
|---|---|
| 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 SAIJ32BX135-40
| 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 SAIJ32BX135-40 Is Used
Machine Changeover
Dial in the 95-135 mm travel window during product format changes, allowing rapid line changeovers without physically replacing the cylinder.
End-Stop Tuning
Fine-tune the exact retracted position during commissioning to perfect the placement of parts without adding external mechanical stops.
Variable Sorting
Adjust the stroke on the fly to accommodate different package sizes on a conveyor diverter, ensuring accurate routing.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-40 the Right Cylinder?
Choose this 32 mm bore cylinder when your application requires 402 N of push force at 0.5 MPa and a highly variable end-stop. If you need less force, a smaller bore is appropriate, but if your load demands more thrust, stepping up to a 40 mm bore provides 628 N at 0.5 MPa. The adjustable 95-135 mm travel window is ideal for product-size changeovers on a packaging line, replacing the need to maintain multiple fixed-stroke SAI cylinders.
Because this is a 135 mm stroke, side-load risks are moderate, but you should still ensure proper external guiding to protect the 12 mm rod thread. This configuration features a PT tapered port thread and lacks a magnet, so position sensing requires external switches rather than embedded CMSE or DMSE sensors. For 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 SAIJ32BX135-40 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 0.7 MPa, the push force increases to 563 N.
The rear adjuster allows you to shorten the 135 mm nominal stroke by up to 40 mm, creating a usable travel window of 95 to 135 mm. The adjuster functions as a mechanical stop for end-position tuning and does not lock the load without live air.
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