Airtac Adjustable Cylinder SAIJ32 SAIJ32AX220-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX220-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 220mm 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
- Stroke220 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX220-50S
The AirTAC SAIJ32X220-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to dial back the 220 mm nominal travel by up to 50 mm. This creates a usable stroke window of 170-220 mm, allowing precise end-position tuning at commissioning without swapping the cylinder or adding external stops. It features a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and a PT tapered port thread.
Delivering 402 N of push force at 0.5 MPa, this compact 32 mm bore profile cylinder integrates seamlessly into existing ISO 15552 mounting footprints. The extruded aluminum barrel includes sensor grooves on both sides, and because this is an -S model, it contains a magnet ready for AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX220-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX220-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 220 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 SAIJ32AX220-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×220 | 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 SAIJ32AX220-50S Is Used
Machine Setup Tuning
Dial in the exact 170-220 mm retract position during commissioning to perfect pick-and-place alignments without machining custom spacers.
Product Size Changeover
Quickly adapt end-stops on a packaging line when running different carton lengths, using the 50 mm adjustment range to shift the stroke window.
Variable End-Positioning
Use the rear stopper screw to set precise retract limits for light-duty clamping or ejecting tasks requiring up to 402 N of push force.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX220-50S the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when your application requires 402 N of push force at 0.5 MPa and you need variable end-stops for product changeovers. If your setup needs less force, stepping down is not an option in the standard SAIJ range, but if you require significantly higher thrust, the 40 mm bore provides 628 N at 0.5 MPa. The adjustable stroke is ideal for machine setups where fine-tuning the retract position is faster than machining spacers, unlike a fixed-stroke SAI cylinder.
Because the 220 mm stroke exceeds 300 mm? No, but for any stroke of 300 mm or more, an external guide is recommended to handle side-load. To replace an ISO 15552 cylinder, match the 32 mm bore, 220 mm stroke, 50 mm adjustment, PT port, and your desired mounting from the SAIJ set: Basic, FA, LB, TC, FTC, TCM1, or TCM2. Note that SAIJ omits the FB, CA, CB, and CR mounts. For load-holding without live air, select a SAIL or BSAI cylinder instead, as the rear adjuster here is a stop, not a lock.
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 SAIJ32AX220-50S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, it delivers 82 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 50 mm, providing a usable travel window of 170-220 mm. It sets the end position but does not lock or hold the load without continuous air pressure.
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