Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-50S 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 SAIJ32BX185-50S
The AirTAC SAIJ32X185-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 135 to 185 mm, allowing you to dial back the nominal 185 mm stroke by up to 50 mm during machine commissioning. Equipped with a SUS304 stainless steel rod and a -S magnet, it works seamlessly with AirTAC CMSE reed and DMSE solid-state sensors via the dual-side barrel grooves.
Delivering 402 N of push force at 0.5 MPa, this compact unit uses PT tapered port threading (G1/8) and offers variable air cushions at both ends. The rear adjuster acts purely as a travel stop to fine-tune the retract position without adding external stops, though it does not lock the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-50S |
|---|---|
| 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 SAIJ32BX185-50S
| 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 SAIJ32BX185-50S Is Used
Product Changeover Adjustment
Dial in the exact end-stop position from 135 to 185 mm when switching between product sizes on a packaging line, avoiding physical cylinder swaps.
Sensor Commissioning Setup
Leverage the built-in magnet and dual sensor grooves to mount CMSE or DMSE switches, then use the rear screw to perfectly time the retract position.
Light-Duty Positioning
Apply the 402 N push force for precise, light-duty assembly tasks where the rear stopper fine-tunes the final tooling touch-point without external hardware.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-50S the Right Cylinder?
Choose this 32 mm bore when your application requires around 402 N of push force at 0.5 MPa. If your setup needs less force, stepping down to a 25 mm bore (if available) or redesigning the fixture is an option, while moving up to a 40 mm bore yields 628 N of push force. The adjustable-stroke feature is selected over a fixed SAI cylinder when you need a variable end-stop for product changeovers rather than swapping the entire actuator.
For ISO 15552 replacement matching, ensure you specify the 32 mm bore, 185 mm stroke, 50 mm adjustment range, PT port threads, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR. Because the 12 mm rod and M10x1.25 thread provide limited side-load resistance, always guide the load externally for this 185 mm stroke.
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 SAIJ32BX185-50S 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 up to 724 N of push force at 0.9 MPa.
The rear adjuster screw lets you shorten the effective stroke by up to 50 mm, creating a usable travel window of 135 to 185 mm. This stopper only sets the end position; it does not lock the load without live air pressure.
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