Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-40 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 SAIJ32AX55-40
The AirTAC SAIJ32X55-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window between 15 and 55 mm without adding external stops. Delivering 402 N of push force at 0.5 MPa, it is built with a SUS420J2 stainless steel rod for enhanced durability against corrosion and side loads. It uses a PT tapered port and omits heavy mounting options like FB and CA, retaining a lightweight Basic, FA, LB, TC, FTC, TCM1, and TCM2 set.
This 32 mm bore model operates at speeds from 30 to 800 mm/s and includes variable air cushions at both ends to soften impact. The rear adjuster acts purely as a mechanical stop to set deceleration and end-position; it does not hold the load without live air pressure. For position-holding requirements, consider the SAIL or BSAI series instead.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-40 |
|---|---|
| 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 SAIJ32AX55-40
| 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 SAIJ32AX55-40 Is Used
Machine Changeover
Dial in the exact 15-55 mm travel window during product size changes without swapping out the entire cylinder assembly.
End-Stop Calibration
Fine-tune the retract position at commissioning using the rear screw, ensuring precise mechanical stops without external spacers.
Variable Positioning
Set deceleration points dynamically on automated equipment, allowing the 12 mm rod to absorb impact via adjustable air cushions.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX55-40 the Right Cylinder?
Choose this 32 mm bore when you need precise end-position tuning during commissioning or product changeover, stepping down from a 40 mm bore that yields 628 N of push force at 0.5 MPa. The 40 mm adjustment range on a 55 mm nominal stroke provides exceptional flexibility for variable end-stops on compact machinery. Because the stroke is 55 mm, no external guide is strictly required, but the 12 mm rod diameter handles moderate side loads well.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 55 mm stroke, 40 mm adjustment, PT tapered port, and standard mounting interface. This SKU lacks a magnet, so position sensing requires adding a separate piston or external sensor; if you need Hall-effect or reed sensing, select the -S option for CMSE and DMSE compatibility.
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 SAIJ32AX55-40 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 a maximum push force of 724 N at 0.9 MPa.
The rear adjuster screw mechanically trims the effective travel, creating a usable stroke window of 15 to 55 mm. This stopper only sets the end position and deceleration; it does not lock or hold the load without continuous air pressure.
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