Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-30S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 185mm 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
- Stroke185 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-30S
The AirTAC SAIJ32X185-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 185 mm stroke that can be dialed back by up to 30 mm, creating a precise 155-185 mm usable travel window for fine-tuning end positions during commissioning. In the compact 32 mm bore class, it delivers 402 N of push force at 0.5 MPa and features a SUS304 stainless steel rod for superior corrosion resistance.
This model includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, which seat cleanly into the sensor grooves on both sides of the extruded aluminum barrel. The rear screw acts purely as a travel stop to set the retract position without needing external stops, though it does not lock the load without live air pressure. It uses a PT tapered port and operates at speeds between 30 and 800 mm/s.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-30S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 185 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 SAIJ32BX185-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×185 | 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 SAIJ32BX185-30S Is Used
Machine Changeover
Dial in the 155-185 mm travel window during product size changes to set new retract endpoints without physically swapping the cylinder.
Fixture Positioning
Use the rear stopper to fine-tune the exact end position of a clamping fixture at commissioning, absorbing mechanical tolerance variations.
Diverting Arms
Adjust the stroke length on a conveyor sorting arm to accommodate different package sizes on the fly while maintaining consistent positioning.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-30S the Right Cylinder?
Choose this 32 mm bore cylinder when an application requires precise end-position tuning without swapping components; if you need more thrust, stepping up to the 40 mm bore yields 628 N at 0.5 MPa. The adjustable 155-185 mm window is ideal for machine setups requiring product changeovers. Because the stroke is 185 mm, ensure adequate guidance to prevent excessive side loading on the 12 mm rod.
For a direct ISO 15552 replacement, match the 32 mm bore, 185 mm nominal stroke, 30 mm adjustment range, PT port thread, and the -S magnet requirement. Remember that the rear adjuster is a stop, not a brake; if the system must hold a load without continuous air pressure, use an external rod lock or a SAIL pneumatic lock cylinder instead. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
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 SAIJ32BX185-30S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At the maximum operating pressure of 1.0 MPa, it achieves a maximum push force of 801 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm from the 185 mm nominal length, providing a usable travel window of 155 to 185 mm. The adjuster acts as a mechanical stop to set the end position and does not function as a load-holding lock.
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