Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-75S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 425mm 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
- Stroke425 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-75S
The AirTAC SAIJ32X425-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel. With a 425 mm nominal stroke and a 75 mm adjustment range, you gain a usable 350-425 mm travel window to dial in end positions during commissioning without adding external stops. It delivers 402 N of push force at 0.5 MPa and uses a PT tapered G1/8 port.
This SKU includes a -S magnet for CMSE reed and DMSE solid-state sensors, which ride neatly in the dual-side barrel grooves. The rod is built from SUS420J2 stainless steel for corrosion resistance, and the extruded aluminum barrel design omits tie-rods for a clean profile. Note that the rear adjuster acts purely as a travel stop and does not lock the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-75S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 425 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 SAIJ32AX425-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×425 | 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 SAIJ32AX425-75S Is Used
Variable End-Stop Tuning
Dial in the 350-425 mm travel window during commissioning to accommodate different material thicknesses without physically swapping out the cylinder.
Machine Changeover
Quickly adjust the retract position on packaging lines when switching between product sizes, using the rear screw to set the new end point.
Assembly Line Positioning
Provides reliable 402 N push force at 0.5 MPa for moving light actuators or stops, with SUS420J2 stainless rod material resisting workshop moisture.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-75S the Right Cylinder?
Choose this 32 mm bore when an application requires precise variable end-stops, stepping up from smaller units if you need more than the 402 N push force available at 0.5 MPa. The adjustable stroke is ideal for machine setups requiring product changeovers, whereas a fixed SAI cylinder is preferred for dedicated, unchanging travel. Because the 425 mm stroke is substantial, an external guide rail is highly recommended to prevent side-load damage to the 12 mm rod and M10x1.25 thread. To match this ISO 15552 cylinder, specify the 32 mm bore, 425 mm stroke, 75 mm adjustment, PT G1/8 port, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
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 SAIJ32AX425-75S 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 lets you shorten the 425 mm nominal stroke by up to 75 mm, creating a usable travel window of 350-425 mm. This stopper only sets the travel end and does not hold the load without live air.
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