Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 375mm 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
- Stroke375 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-20
The AirTAC SAIJ32X375-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a 402N push force at 0.5MPa and provides a usable travel window of 355 to 375mm, allowing precise end-position tuning without swapping out the unit. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
This specific SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. The rear adjustment screw acts purely as a mechanical stop to decelerate the travel end, meaning it will not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 375 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 SAIJ32BX375-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×375 | 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 SAIJ32BX375-20 Is Used
Machine Changeover
Quickly dial in the end-stop from 355 to 375mm during product size changes without physically replacing the cylinder or adding external stopper blocks.
End-Position Tuning
Fine-tune the exact retracted position during commissioning to perfect the pickup alignment of delicate pneumatic actuators.
Variable End Stops
Ideal for diverter gates on a conveyor line where the exact stopping distance of the 402N thrust needs occasional field adjustment.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-20 the Right Cylinder?
Choose this 32mm bore cylinder when you need 402N of push force at 0.5MPa and a 375mm travel distance that requires fine-tuning during commissioning. If your application needs less force, stepping down to a 25mm bore might be an option, but if you require higher force, consider stepping up to a 40mm bore which provides 628N at 0.5MPa. Because the stroke is 375mm, you must account for potential side-loading on the 12mm rod; an external guide is highly recommended to prevent premature seal wear.
The adjustable stroke is ideal for variable end-stops and product changeovers, whereas a fixed-stroke SAI cylinder lacks this commissioning flexibility. If your machine requires true load-holding without live air pressure, note that this adjuster is not a lock—you should look at the SAIL or BSAI series instead. For exact ISO 15552 replacement matching, verify the 32mm bore, 375mm stroke, 20mm adjustment, PT G1/8 port, and the specific mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ32BX375-20 FAQ
At 0.5MPa operating pressure, this 32mm bore cylinder generates 402N of push force and 345N of pull force. It operates at speeds between 30 and 800 mm/s.
The rear adjuster screw lets you shorten the 375mm nominal stroke by up to 20mm, creating a 355-375mm usable travel window. It functions as a mechanical stop to set the travel end and does not lock or hold the load without live air pressure.
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