Airtac Adjustable Cylinder SAIJ32 SAIJ32AX185-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX185-50S 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 SAIJ32AX185-50S
The AirTAC SAIJ32X185-50-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 135-185 mm usable travel window, allowing you to dial back the 185 mm nominal stroke by up to 50 mm during commissioning. Operating at 0.5 MPa, it delivers 402 N of push force and 345 N of pull force, making it well-suited for precise, lighter-duty tasks.
This variant features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides. It uses a PT tapered port (G1/8) and relies on variable air cushions at both ends to decelerate the load, though the adjuster acts only as a travel stop and will not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX185-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX185-50S |
|---|---|
| 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 SAIJ32AX185-50S
| 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 SAIJ32AX185-50S Is Used
End-Position Tuning
Dial in the exact 135 to 185 mm travel distance during machine commissioning to accommodate varying product sizes without replacing hardware.
Changeover Adjustment
Quickly modify the retract end-stop for production line changeovers using the 50 mm adjustment range to handle different package dimensions.
Light-Duty Positioning
Leverage the 402 N push force and SUS420J2 stainless steel rod for precise, repeatable positioning in lighter assembly tasks.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX185-50S the Right Cylinder?
Choose this 32 mm bore when your application requires up to 402 N of push force at 0.5 MPa. If your setup demands greater thrust, stepping up to the 40 mm bore yields 628 N of push force at the same pressure. The adjustable stroke is ideal for machine setups requiring variable end stops or product-size changeovers, saving the effort of swapping out a fixed-stroke SAI cylinder or adding external mechanical stops.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 185 mm stroke, 50 mm adjustment range, PT port thread, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. For load-holding without continuous air pressure, consider the SAIL or BSAI series instead, as this cylinder's rear adjuster is strictly a stop.
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 SAIJ32AX185-50S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It operates at speeds between 30 and 800 mm/s.
The rear adjuster acts as a mechanical stop that lets you shorten the 185 mm nominal stroke by up to 50 mm, providing an effective travel window of 135 to 185 mm. It sets the end position but does not lock or hold the load without live air pressure.
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