Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-30
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 155mm 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
- Stroke155 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-30
The AirTAC SAIJ32X155-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 125-155 mm usable travel window, allowing you to dial back the 155 mm nominal stroke by up to 30 mm during commissioning. Delivering 402 N of push force at 0.5 MPa, it handles light-duty positioning with precision.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-30 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 155 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 SAIJ32BX155-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×155 | 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 SAIJ32BX155-30 Is Used
Machine Changeover
Quickly adjust the 125-155 mm travel window to accommodate different product sizes on a packaging line without swapping cylinders.
End-Stop Calibration
Fine-tune the retract position during initial setup to achieve precise mechanical alignment without adding external stopper blocks.
Light-Load Positioning
Use the 402 N push force to move small parts or divert components on a conveyor, adjusting the stroke as needed for varying belt widths.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-30 the Right Cylinder?
Choose this 32 mm bore when an application requires precise end-position tuning without external stops, offering 402 N push force at 0.5 MPa. If your setup needs less force, step down is not an option below 32 mm in this series, but stepping up to a 40 mm bore yields 628 N. The adjustable stroke is perfect for product changeovers, whereas a fixed SAI cylinder locks you into one exact dimension.
Because this is a single-rod double-acting cylinder, it requires live air to maintain position; the rear adjuster is a travel stop, not a lock. For load-holding without air pressure, consider the SAIL or BSAI series. With a 155 mm stroke, the 12 mm rod handles moderate side loads, but always use an external guide for unsupported loads. To match this ISO 15552 replacement, verify the 155 mm stroke, 30 mm adjuster, PT port, and mounting style.
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 SAIJ32BX155-30 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 30 mm. This creates a usable travel window of 125-155 mm, which is set during commissioning and does not require changing the cylinder itself.
At 0.5 MPa operating pressure, the SAIJ32X155-30 provides 402 N of push force and 345 N of pull force. It can reach up to 724 N of push force at 0.9 MPa.
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