Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 55mm 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
- Stroke55 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40
The AirTAC SAIJ32X55-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel down to a 15-55 mm window. Delivering 402 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model uses a PT tapered port and omits the FB, CA, CB, and CR mounting accessories, supporting only the Basic, FA, LB, TC, FTC, TCM1, and TCM2 interface set. The rear adjuster acts strictly as a travel stop to fine-tune end positions during commissioning, not as a lock to hold loads without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 55 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 SAIJ32BX55-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×55 | 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 SAIJ32BX55-40 Is Used
Machine Changeover
Dial in the 15-55 mm travel window on the fly when switching product sizes on a packaging line.
End-Position Tuning
Fine-tune the retract stroke during commissioning without machining external hard stops.
Corrosive Environments
Leverage the SUS304 stainless steel rod for reliable actuation in washdown or chemical exposure areas.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-40 the Right Cylinder?
Choose this 32 mm bore when your application requires precise end-position tuning at setup or during product changeovers, avoiding the need to swap cylinders or bolt on external stops. If your process needs slightly higher force, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa.
For load-holding without continuous air pressure, this cylinder is insufficient since the rear stopper and air cushions only decelerate travel; consider the SAIL or BSAI series instead. To match this ISO 15552 replacement exactly, specify: 32 mm bore, 55 mm stroke, 40 mm adjustment, PT port, and the required 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 SAIJ32BX55-40 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder 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.
The rear adjuster screw lets you shorten the 55 mm nominal stroke by up to 40 mm, creating a usable travel window of 15 to 55 mm. This stopper only sets the end position; it does not lock or hold the load without live air pressure.
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