Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-30
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-30 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 SAIJ32BX185-30
The AirTAC SAIJ32X185-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position without external stops. It provides a usable travel window of 155 to 185 mm, letting you dial back the nominal stroke by up to 30 mm during machine commissioning or product changeover. Built with a SUS304 stainless steel rod and PT tapered ports, it delivers 402 N of push force at 0.5 MPa.
This compact 32 mm bore unit operates at speeds from 30 to 800 mm/s and utilizes variable air cushions at both ends to decelerate the piston smoothly. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic sensors. The rear adjuster acts purely as a travel stop, meaning it will not hold the load if air pressure drops.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-30 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-30 |
|---|---|
| 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 SAIJ32BX185-30
| 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 SAIJ32BX185-30 Is Used
Machine Commissioning Tuning
Dial in the exact 155-185 mm end-stop position during initial setup without swapping out the physical cylinder or adding external stopper blocks.
Product Size Changeover
Quickly adjust the retract stroke by up to 30 mm on packaging lines handling varying product lengths, ensuring precise positioning on the fly.
Small Component Handling
Utilize the 402 N push force and SUS304 rod for precise, corrosion-resistant handling and ejection of small parts in light assembly tasks.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX185-30 the Right Cylinder?
Choose this 32 mm bore model when your application requires 402 N of push force at 0.5 MPa, or step down if you need less travel and can utilize a smaller footprint. An adjustable stroke is preferred over a fixed SAI cylinder when you need precise end-position tuning at setup or have varying product sizes on the same line. For load-holding without live air pressure, this cylinder will not suffice, as the adjuster is only a stop; consider an AirTAC SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 185 mm stroke, 30 mm adjustment range, PT port threads, and the SUS304 rod material. Note that the SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR brackets found on some other series.
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 SAIJ32BX185-30 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At the maximum pressure of 1.0 MPa, it delivers up to 82 kgf.
The rear adjuster screw lets you shorten the effective stroke from its nominal 185 mm down to 155 mm. This creates a 155-185 mm travel window for fine-tuning the retract end position at commissioning without changing the cylinder.
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