Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 145mm 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
- Stroke145 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-20
The AirTAC SAIJ32X145-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a 402N push force at 0.5MPa. By turning the external stopper screw, you can shorten the effective travel by up to 20mm, creating a precise 125-145mm usable stroke window without swapping the barrel. This fine-tuning capability is ideal for dialing in end positions during machine commissioning or product changeovers.
Built with a SUS304 stainless steel rod for corrosion resistance, this 32mm bore model uses a PT tapered port and reaches speeds of 30-800mm/s. The rear adjuster acts purely as a travel stop to set deceleration, meaning it will not hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 145 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 SAIJ32BX145-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×145 | 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 SAIJ32BX145-20 Is Used
Machine Changeover
Dial in the 125-145mm travel window during product size changeovers without replacing the cylinder or adding external stopper blocks.
End-Position Tuning
Fine-tune the retract end-position precisely at commissioning using the rear adjuster screw to perfect the machine timing.
Assembly Station Stops
Provide adjustable physical stops for varying part sizes on an assembly line, leveraging the 402N thrust at 0.5MPa.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-20 the Right Cylinder?
Choose this 32mm bore adjustable cylinder when your application requires a 125-145mm stroke window and moderate thrust. If you need higher force, stepping up to the 40mm bore yields 628N of push force at 0.5MPa. The SAIJ series is selected over fixed-stroke SAI cylinders when you need variable end-stops for machine setup, eliminating the need to bolt on external stops.
When matching ISO 15552 dimensions for a replacement, verify the 32mm bore, 145mm nominal stroke, 20mm adjustment range, PT port threads, and the mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Since this unit lacks a magnet (-S), it cannot host CMSE or DMSE sensors. At 145mm, the 12mm rod handles standard loads, but always verify guiding on longer strokes.
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 SAIJ32BX145-20 FAQ
At 0.5MPa, this 32mm bore cylinder provides 402N of push force and 345N of pull force. If you operate at 0.7MPa, the push force increases to 563N.
The rear adjuster screw lets you shorten the 145mm nominal stroke by up to 20mm, creating a usable travel window of 125-145mm. It functions as a physical stop to tune the end position, not as a lock to hold the load without air.
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