Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-75
The AirTAC SAIJ32X450-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 375 to 450 mm, allowing you to dial back the nominal stroke by up to 75 mm during commissioning without swapping the barrel or adding external stops. With a 32 mm bore, it delivers 402 N of pull force at 0.5 MPa and uses a PT G1/8 port.
This variant uses a SUS420J2 stainless steel piston rod (option A) for improved corrosion resistance over standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU lacks the internal magnet required for CMSE reed or DMSE electronic sensors. The rear adjuster acts purely as a mechanical stop to fine-tune the retract position; it does not lock or hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 450 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 SAIJ32AX450-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×450 | 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 SAIJ32AX450-75 Is Used
Machine Changeover
Dial in the exact retract distance from 375 to 450 mm during product size changes without disassembling the cylinder or adding shims.
End-Stop Tuning
Fine-tune the final retract position at commissioning to compensate for mechanical tolerance stack-up in the fixture.
Variable Positioning
Set custom retract endpoints on an automated line where multiple parts share the same cylinder but require slightly different stroke lengths.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-75 the Right Cylinder?
Choose this 32 mm bore model when your application requires precise end-position tuning within a 375-450 mm travel window. If you need less force, stepping down is not an option below 32 mm in this series, but stepping up to a 40 mm bore increases your 0.5 MPa pull force to 528 N. The adjustable stroke is ideal for product changeovers where the exact retract distance varies, whereas a fixed-stroke SAI cylinder requires manual shimming for the same result.
Because the 450 mm stroke is relatively long for a 12 mm rod, an external guide is recommended to prevent excessive side-loading and rod deflection. To replace an ISO 15552 cylinder, match the 32 mm bore, 450 mm stroke, 75 mm adjustment, PT G1/8 port, and your required mounting accessory from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Remember that neither the rear adjuster nor the air cushions can hold a load unpressurized; for true load-holding, select an SAIL or BSAI cylinder.
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 SAIJ32AX450-75 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 up to 82 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from 450 mm down to as little as 375 mm. It only sets the travel end and does not lock the load without continuous air pressure.
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