Airtac Adjustable Cylinder SAIJ32 SAIJ32AX220-75S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX220-75S 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 SAIJ32AX220-75S
The AirTAC SAIJ32X220-75-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 145 to 220 mm, allowing you to dial back the nominal 220 mm stroke by up to 75 mm during commissioning without swapping out the unit. With a 32 mm bore, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This variant includes an SUS420J2 stainless steel rod (option A) for superior corrosion resistance and is equipped with a magnet for position sensing. The extruded aluminum barrel features sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster functions strictly as a mechanical stop to set the retract end-position; it does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX220-75S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX220-75S |
|---|---|
| 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 SAIJ32AX220-75S
| 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 SAIJ32AX220-75S Is Used
Machine Changeover
Dial in the 145 to 220 mm travel window during product size changeovers without replacing the cylinder or adding external mechanical stops.
End-Position Tuning
Fine-tune the retract end-position at commissioning using the rear adjuster screw to perfect machine timing and hitting marks.
Corrosive Assembly
Leverage the SUS420J2 stainless steel rod and 402 N push force for reliable actuation in environments requiring higher corrosion resistance.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX220-75S the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when your application requires variable end-stops or frequent product-size changeovers, stepping up from a smaller unit or down from a 40 mm bore that provides 628 N push force at 0.5 MPa. The adjustable rear screw allows fine end-position tuning at commissioning without adding external stops, a clear advantage over a fixed-stroke SAI cylinder. For load-holding without continuous air pressure, this cylinder is not a lock; consider the SAIL or BSAI series instead.
For ISO 15552 replacement matching, specify: 32 mm bore, 220 mm stroke, 75 mm adjustment range, PT tapered port threads, and a magnet for sensors (-S). The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. Since the 220 mm stroke exceeds 300 mm is false, standard guiding applies, but always account for side-load on the 12 mm rod thread (M10x1.25) in dynamic setups.
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 SAIJ32AX220-75S FAQ
At 0.5 MPa operating pressure, the 32 mm bore provides 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 82 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 220 mm nominal stroke down to 145 mm. It only sets the retract end-position and does not lock or hold the load without live air pressure.
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