Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 120mm 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
- Stroke120 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-40S
The AirTAC SAIJ32X120-40-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, letting you dial back the 120 mm travel by up to 40 mm for a usable window of 80-120 mm. It delivers 402 N of push force at 0.5 MPa. The carbon steel rod and PT tapered port threads are standard.
This 32 mm bore uses a 12 mm rod and M10x1.25 thread, running at 30-800 mm/s with 27 mm cushions at both ends. The rear stopper acts as a travel end-deceleration device, not a lock, so it will not hold a load without live air. The integrated magnet works with AirTAC CMSE reed and DMSE electronic sensors.
Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 120 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 SAIJ32X120-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×120 | 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 SAIJ32X120-40S Is Used
Machine Setup Commissioning
Fine-tune the 80-120 mm travel window during initial setup to perfectly position a pick-and-place head without machining custom spacers.
Product Size Changeover
Quickly adjust the retract stopper by up to 40 mm on a packaging line when switching between different product widths.
Variable End-Stop Positioning
Dial in the exact end-of-stroke contact point for light assembly tasks requiring a 402 N push force at 0.5 MPa.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-40S the Right Cylinder?
Choose this 32 mm bore when you need precise end-position tuning during commissioning without swapping cylinders or adding external stops. If your application requires more thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. For load-holding without live pressure, select the SAIL or BSAI series instead.
To match this ISO 15552 interchangeable cylinder, use a 32 mm bore, 120 mm stroke, 40 mm adjustment, PT G1/8 port, and an -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ32X120-40S 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 the maximum 1.0 MPa pressure, it delivers up to 82 kgf.
The rear adjuster screw acts as a mechanical stop that lets you trim the 120 mm nominal stroke back by up to 40 mm, creating an 80-120 mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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