Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-40S 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 SAIJ32AX55-40S
The AirTAC SAIJ32X55-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 15-55 mm usable travel window, letting you dial back the 55 mm nominal stroke by up to 40 mm during machine commissioning. Delivering 402 N of push force at 0.5 MPa, it suits lighter-duty tasks requiring exact end-positioning.
This SKU is built with a SUS420J2 stainless steel rod for enhanced corrosion resistance and includes a magnet for position sensing. It works seamlessly with AirTAC CMSE reed and DMSE solid-state sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the PT tapered port threads ensure a tight pneumatic connection.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-40S |
|---|---|
| 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 SAIJ32AX55-40S
| 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 SAIJ32AX55-40S Is Used
End-Stop Tuning
Fine-tune the 15-55 mm travel window during machine commissioning to dial in exact positioning without swapping hardware.
Product Changeovers
Quickly adjust the retract end-position on packaging lines when handling slightly different carton or product sizes.
Lab Automation
Leverage the SUS420J2 stainless rod and CMSE/DMSE sensor compatibility for precise, repeatable testing motions.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-40S the Right Cylinder?
Choose this 32 mm bore if your application requires 402 N of push force at 0.5 MPa; step up to the 40 mm bore if you need 628 N. An adjustable stroke is ideal when you need variable end-stops for product changeovers, avoiding the need to physically swap cylinders or bolt on external stops. For ISO 15552 replacement, match the 32 mm bore, 55 mm stroke, 40 mm adjustment, PT port thread, and -S magnet.
The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure. For secure load-holding without continuous air, consider the SAIL or BSAI series instead.
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 SAIJ32AX55-40S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach up to 724 N of push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 55 mm nominal stroke by up to 40 mm. This creates a 15-55 mm usable travel window for fine-tuning end positions without replacing the cylinder.
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