Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 500mm 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
- Stroke500 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-75
The AirTAC SAIJ32X500-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 425-500mm usable travel window, allowing you to trim the effective stroke by up to 75mm during commissioning without swapping the cylinder. Built with a SUS304 stainless steel rod and PT tapered ports, it delivers 563N of push force at 0.7 MPa.
This extruded aluminum profile cylinder includes sensor grooves on both sides for flexible switch mounting. The rear screw acts purely as a travel stop for end-position tuning, meaning it will not hold a load without live air pressure. For positive load-holding, an external rod lock or AirTAC SAIL cylinder is required.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 500 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 SAIJ32BX500-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×500 | 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 SAIJ32BX500-75 Is Used
Product Changeovers
Dial in the 425-500mm travel window during format size changes on packaging lines, avoiding the need to physically swap out long-stroke cylinders.
End-Stop Calibration
Fine-tune the exact retract position at machine commissioning using the rear adjuster, ensuring precise placement without adding external mechanical stops.
Sorting Diverters
Adjust the actuator's extended reach on the fly to accommodate varying package lengths on a conveyor system without changing the pneumatic footprint.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-75 the Right Cylinder?
Choose this 32mm bore when you need 563N push force at 0.7 MPa with on-the-fly end-stop adjustments; step up to a 40mm bore if your application requires 879N. The adjustable 425-500mm window is ideal for product changeovers, replacing the need for fixed-stroke SAI cylinders or external stops. Because the stroke is 500mm, the 12mm rod requires an external guide to prevent excessive side-loading on the seals.
When specifying an ISO 15552 replacement, match the 500mm stroke, 75mm adjustment range, PT port thread, and standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that SAIJ omits FB, CA, CB, and CR mounts. This unit lacks a magnet, so position sensing requires adding a magnet or choosing an external proximity setup.
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 SAIJ32BX500-75 FAQ
The rear adjuster screw lets you shorten the nominal 500mm stroke by up to 75mm, creating a 425-500mm travel window. It functions as a mechanical stop for end-position tuning and does not lock the load without continuous air pressure.
At 0.5 MPa, this 32mm bore cylinder provides 402N of push force and 345N of pull force. At 0.7 MPa, the push force increases to 563N.
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