Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 900mm 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
- Stroke900 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-40S
The AirTAC SAIJ32X900-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 860 to 900 mm, allowing you to dial back the end-of-stroke position by up to 40 mm during commissioning without adding external stops. It delivers 402 N of push force at 0.5 MPa and uses a SUS304 stainless steel rod for superior corrosion resistance in washdown or chemically active environments.
This model includes a magnetic piston for position sensing with AirTAC CMSE reed and DMSE electronic switches. The extruded aluminum barrel integrates sensor grooves on both sides, and the PT tapered port threads match standard pneumatic plumbing. While the rear adjuster sets the travel end, it functions as a stop rather than a lock, meaning the cylinder cannot hold a load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 900 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 SAIJ32BX900-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×900 | 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 SAIJ32BX900-40S Is Used
Machine Changeover
Dial in the exact 860 to 900 mm end-stop during product size transitions without physically replacing the cylinder or bolting on external stopper blocks.
Long-Stroke Diverting
Handles long-travel diverting tasks on a conveyor line, using the 40 mm adjustment window to fine-tune the actuator's retracted position for varying package sizes.
Washdown Positioning
The SUS304 stainless steel rod excels in washdown or mildly corrosive environments, providing reliable positioning where standard carbon steel rods might degrade.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-40S the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N of push force at 0.5 MPa and precise end-position tuning over a long 900 mm stroke. If you need higher thrust, stepping up to a 40 mm bore yields 628 N at the same pressure. The adjustable stroke is ideal for machine setups requiring variable end stops or product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. Because the stroke is 900 mm, an external guide is recommended to prevent excessive rod side-loading and premature wear.
For an exact ISO 15552 replacement, match the 32 mm bore, 900 mm stroke, 40 mm adjustment, PT port thread, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting accessories. Note that SAIJ omits FB, CA, CB, and CR mounts. If your setup requires true fail-safe load holding without continuous air pressure, consider the SAIL or BSAI series, as the SAIJ rear adjuster only decelerates the stroke and does not lock the load.
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 SAIJ32BX900-40S FAQ
The rear adjuster acts as an external stopper that lets you shorten the effective stroke by up to 40 mm, providing a usable travel window of 860 to 900 mm. It decelerates the travel end but does not lock the load without live air pressure.
At 0.5 MPa it provides 402 N of push force and 345 N of pull force. The standard operating speed range for this 32 mm bore is 30-800 mm/s, supported by 27 mm cushions at both ends.
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