Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20S 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 SAIJ32BX500-20S
The AirTAC SAIJ32X500-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 480 to 500 mm for precise end-position tuning. It delivers 402 N of push force and 345 N of pull force at 0.5 MPa, utilizing a PT G1/8 port. This configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a built-in magnet for CMSE reed and DMSE electronic sensors.
Because the adjuster acts solely as a mechanical stop to set the retract deceleration point, it does not hold the load without live air pressure. The extruded aluminum barrel features sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets, deliberately omitting FB, CA, CB, and CR options.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20S |
|---|---|
| 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 SAIJ32BX500-20S
| 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 SAIJ32BX500-20S Is Used
Commissioning End-Stop Tuning
Dial in the exact retract position within the 480-500 mm window during machine setup without machining custom spacers.
Product Size Changeover
Quickly adjust the stroke length by up to 20 mm on packaging lines when transitioning between slightly different product dimensions.
Corrosive Environment Actuation
Leverage the SUS304 stainless steel rod for reliable pushing and pulling in light-duty assembly tasks exposed to moisture.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20S the Right Cylinder?
Choose this 32 mm bore when an application requires lower thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa if greater rigidity is needed. An adjustable stroke is selected over a fixed SAI cylinder when commissioning requires fine-tuning the end stop without adding external shims or swapping components. To match this ISO 15552 footprint exactly, specify the 32 mm bore, 500 mm stroke, 20 mm adjustment, PT G1/8 port, and the -S magnet.
At 500 mm of travel, the 12 mm rod diameter requires careful alignment to prevent excessive side loading; an external guide rail is recommended for unsupported loads. For applications requiring true load-holding without continuous air pressure, consider the SAIL pneumatic lock or BSAI clamp-lock series instead of relying on the standard air cushion.
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 SAIJ32BX500-20S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach a maximum push force of 724 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the nominal 500 mm stroke by up to 20 mm, creating a 480-500 mm travel window. It functions as a mechanical stop to fine-tune the end position and does not lock the load without air pressure.
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