Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 325mm 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
- Stroke325 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-20S
The AirTAC SAIJ32X325-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 305 to 325 mm, allowing you to dial in the exact retract position without adding external stops. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa. The piston rod is built from SUS304 stainless steel (code B) for superior corrosion resistance.
This variant includes a magnet (-S) for position sensing with AirTAC CMSE reed and DMSE electronic switches. It uses a PT tapered G1/8 port and offers 27 mm of adjustable air cushioning at both ends. The mounting options cover Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 325 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 SAIJ32BX325-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×325 | 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 SAIJ32BX325-20S Is Used
Machine Changeover
Dial in the retract position from 305 to 325 mm during product size changes without swapping the cylinder or adding external stopper blocks.
End-Stop Tuning
Fine-tune the final end-of-stroke position during machine commissioning to perfect the mechanical timing of your assembly process.
Variable Diverter
Adjust the travel distance of a sorting gate on the fly to handle different package widths on a shared conveyor line.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-20S the Right Cylinder?
Choose this 32 mm bore if your application requires up to 402 N of thrust at 0.5 MPa; stepping down is not an option below 32 mm, but moving up to a 40 mm bore raises the push force to 628 N. An adjustable stroke is selected over a fixed SAI cylinder when you need fine end-position tuning during commissioning or product changeover. Because the stroke is 325 mm, the 12 mm rod and M10x1.25 thread handle moderate side loads, but an external guide rail is recommended for long unsupported travel. The rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider an external rod lock, SAIL, or BSAI clamp-lock cylinder. To match this ISO 15552 replacement, specify a 32 mm bore, 325 mm stroke, 20 mm adjustment, PT G1/8 port, and a -S magnet.
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 SAIJ32BX325-20S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. The 20 mm rear adjuster allows you to trim the 325 mm nominal stroke back, giving an effective adjustable travel window of 305 to 325 mm.
No, the rear adjuster is a mechanical travel stop, not a locking device. It only sets the end position; the cylinder cannot hold a load without live air pressure. For load-holding, use an external rod lock, a SAIL air-released lock, or a BSAI clamp-lock cylinder.
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