Airtac Adjustable Cylinder SAIJ32 SAIJ32AX500-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX500-20S 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 SAIJ32AX500-20S
The AirTAC SAIJ32X500-20-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 500 mm stroke that can be fine-tuned backward by up to 20 mm, creating a precise 480-500 mm usable travel window for commissioning flexibility. Equipped with a -S magnet, it integrates seamlessly with AirTAC CMSE reed and DMSE electronic solid-state sensors mounted in the dual-side barrel grooves.
Delivering 402 N of push force at 0.5 MPa (up to 724 N at 0.9 MPa), this 32 mm bore unit features a 12 mm carbon steel rod upgraded with a SUS420J2 stainless steel option (code A) for improved corrosion resistance. The rear adjuster acts strictly as a mechanical stop to set the retract end position, meaning it will not hold a load safely without continuous live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX500-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX500-20S |
|---|---|
| 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 SAIJ32AX500-20S
| 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 SAIJ32AX500-20S Is Used
Machine Changeover
Dial in the 480-500 mm travel window during format size changes on packaging lines without replacing the cylinder or repositioning hard stops.
Variable End Stops
Adjust the retract position on the fly to accommodate different product lengths on a sorting conveyor without halting the entire system.
Assembly Calibration
Fine-tune the final end position during initial commissioning of a long-stroke assembly station to perfect the pressing or placement depth.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX500-20S the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when your application requires exact end-position tuning during machine setup or product changeover, avoiding the need to physically swap cylinders or add external stops. If your process needs less force, stepping down is not an option within the SAIJ range, but if you require significantly higher thrust, stepping up to the 40 mm bore yields 628 N at 0.5 MPa.
Because the 500 mm stroke is substantial for a 32 mm bore, the 12 mm rod and M10x1.25 thread provide decent rigidity, but an external guide is highly recommended to prevent excessive side-load damage over this long unsupported travel. This SAIJ model is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. Ensure your setup matches the PT tapered G1/8 port and includes the -S magnet for sensor tracking.
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 SAIJ32AX500-20S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. If higher pressure is available, it can deliver up to 724 N of push force at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective travel from the 500 mm nominal stroke by up to 20 mm, giving a usable 480-500 mm window. The adjuster functions only as a travel stop and does not lock the load without live air pressure.
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