Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-75S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-75S 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 SAIJ32BX185-75S
The AirTAC SAIJ32X185-75-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 fine-tuned down by up to 75 mm, yielding a usable travel window of 110-185 mm to dial in end positions without swapping hardware. As a compact 32 mm bore unit, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a built-in magnet for position sensing. The extruded aluminum barrel utilizes sensor grooves on both sides to accept CMSE reed or DMSE electronic solid-state switches. Mounting options span Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR configurations.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-75S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-75S |
|---|---|
| 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 SAIJ32BX185-75S
| 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 SAIJ32BX185-75S Is Used
Product Changeover
Quickly adjust the 110-185 mm travel window to accommodate different package sizes on a packaging line without changing the cylinder.
Machine Setup
Fine-tune the retract end-position during initial commissioning to achieve precise seating of small components.
Variable End Stops
Dial in the exact rejection distance for a diverter arm on a conveyor handling varied product lengths.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-75S the Right Cylinder?
Select this 32 mm bore actuator when an application demands precise end-position tuning during commissioning or frequent product changeovers, replacing the need for fixed-stroke SAI cylinders or external mechanical stops. If your setup requires greater thrust, stepping up to the 40 mm bore increases push force to 628 N at 0.5 MPa; conversely, smaller bores lack the adjustability range needed here. The PT tapered port and G1/8 connection match the standard 32 mm interface.
Because the 185 mm stroke is relatively long for a 32 mm bore, the 12 mm rod and M10x1.25 thread should be paired with an external guide to prevent excessive side-loading on the piston. Remember that the rear adjuster acts only as a travel stop and the air cushions handle deceleration; neither will hold a load without continuous air pressure. For load-holding requirements, consider an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ32BX185-75S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 75 mm from the 185 mm nominal length, providing an adjustable travel window of 110-185 mm. It acts as a mechanical stop to set the end position and does not lock the load without air pressure.
At 0.5 MPa operating pressure, it provides 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, the push force reaches 724 N.
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