Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-40 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 SAIJ32X120-40
The AirTAC SAIJ32X120-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 120 mm stroke that can be dialed back by up to 40 mm, yielding an 80-120 mm usable travel window for precise end-position tuning. In the compact 32 mm bore class, it delivers 402 N of push force at 0.5 MPa, making it ideal for light-duty manipulation tasks.
This model features a standard carbon steel piston rod and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. If position verification is required later, adding an -S magnet allows the use of AirTAC CMSE reed or DMSE electronic solid-state sensors.
Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-40 |
|---|---|
| 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 SAIJ32X120-40
| 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 SAIJ32X120-40 Is Used
Machine Changeover
Dial in the 80-120 mm travel window during product size changes to set new end positions rapidly without swapping hardware.
End-Stop Calibration
Fine-tune the retract position at commissioning using the rear screw, perfect for delicate pick-and-place operations needing exact placement.
Light Assembly Tasks
Leverage the 402 N push force at 0.5 MPa for compact positioning of small components where a fixed SAI stroke might overshoot.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-40 the Right Cylinder?
Choose this 32 mm bore adjustable cylinder when you need to fine-tune the retract end position during commissioning or product changeover without adding external stops. If your application requires greater thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Because the rear adjuster acts only as a travel stop and the air cushions handle deceleration, this cylinder cannot hold a load without live air pressure; for fail-safe load holding, consider the SAIL or BSAI series.
To match this exact ISO 15552 interchangeable footprint, specify a 32 mm bore, 120 mm stroke, 40 mm adjustment range, PT port thread, and your required mounting style. The SAIJ series supports a reduced mounting set including 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 SAIJ32X120-40 FAQ
The rear adjuster acts as a mechanical stop that shortens the effective travel. For the SAIJ32X120-40, you can trim the 120 mm nominal stroke back by up to 40 mm, creating an 80-120 mm adjustable travel window.
At 0.5 MPa operating pressure, the 32 mm bore provides 402 N of push force and 345 N of pull force. It can reach a maximum push force of 724 N at 0.9 MPa.
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