Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 280mm 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
- Stroke280 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-40
The AirTAC SAIJ32X280-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel. With a nominal 280 mm stroke and a 40 mm adjustment range, it provides a usable 240-280 mm travel window to perfectly dial in end positions during machine commissioning.
Delivering 402 N of push force at 0.5 MPa, this compact 32 mm bore unit is built with a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches, though this specific SKU is configured without a magnet.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 280 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 SAIJ32BX280-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×280 | 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 SAIJ32BX280-40 Is Used
Machine Changeover
Quickly dial in the 240-280 mm travel window during product size changes on a packaging line without replacing the cylinder or adding external stopper blocks.
Sensor & Switch Actuation
Fine-tune the exact retract distance to ensure reliable trigger points for downstream assembly operations, compensating for mechanical wear over time.
Diversion Gate Setup
Adjust the stroke on-site to perfectly position a conveyor sorting gate, allowing operators to modify the travel limit until the flow geometry is ideal.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-40 the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when your setup requires precise end-position tuning without swapping out physical components. If your application needs more thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Because the 280 mm stroke is relatively long for this small bore, the 12 mm rod and M10x1.25 thread can only handle so much side-load; an external guide rail is recommended to prevent rod binding.
The rear adjuster acts purely as a mechanical stop to set the retract position and relies on the built-in air cushions for end-of-stroke deceleration. It is not a locking device and will not hold a load without live air pressure; for fail-safe load holding, consider the SAIL or BSAI series instead. This model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable with ISO 15552 cylinders without relying on tie-rod construction.
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 SAIJ32BX280-40 FAQ
It features a rear adjusting screw that lets you shorten the effective stroke by up to 40 mm. This creates a 240-280 mm adjustable travel window, allowing you to set the exact retract end-position during commissioning without changing the cylinder.
At 0.5 MPa operating pressure, the SAIJ32X280-40 provides 402 N of push force and 345 N of pull force. It can deliver up to 724 N of push force at its maximum 0.9 MPa pressure.
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