Airtac Adjustable Cylinder SAIJ32 SAIJ32AX185-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX185-40 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 SAIJ32AX185-40
The AirTAC SAIJ32X185-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel down to a 145-185 mm window. Delivering 402 N of push force at 0.5 MPa, it suits lighter-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This variant uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered port threads. The rear stopper mechanism lets you fine-tune the retract end position during commissioning without adding external stops, while the standard variable air cushions decelerate the piston at both ends.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX185-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX185-40 |
|---|---|
| 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 SAIJ32AX185-40
| 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 SAIJ32AX185-40 Is Used
Machine Changeover
Dial in the exact retract position within the 145-185 mm window when switching product sizes on a packaging line.
Commissioning Setup
Fine-tune the end-of-stroke stop during initial machine setup without fabricating or bolting on external physical spacers.
Light Assembly Positioning
Utilize the 402 N push force to move small components into exact fixtures before a secondary operation occurs.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX185-40 the Right Cylinder?
Choose this 32 mm bore when you need precise retract-position tuning on the fly, stepping up from a smaller unit or down from a 40 mm bore (which provides 628 N push force at 0.5 MPa) if your application requires less thrust. The integrated rear adjuster acts purely as a travel stop, not a lock; the cylinder will not hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). The 12 mm rod and M10x1.25 thread handle moderate side loads, but because the 185 mm stroke is substantial for this bore size, an external guide is recommended to prevent rod wear.
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 SAIJ32AX185-40 FAQ
At 0.5 MPa it provides 402 N push and 345 N pull force, reaching up to 724 N push at 0.9 MPa. The operational speed range is 30-800 mm/s.
The rear adjuster screw acts as a mechanical stop that shortens the nominal 185 mm stroke, giving you a usable travel window of 145 to 185 mm. It only sets the end position and does not lock the load without air pressure.
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