Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 300mm 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
- Stroke300 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-20S
The AirTAC SAIJ32X300-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 280-300 mm, allowing you to dial back the nominal 300 mm stroke by up to 20 mm during commissioning. Delivering 402 N of push force at 0.5 MPa, it suits lighter-duty tasks. The PT tapered port and G1/8 thread size are set for this 32 mm bore.
This variant uses a SUS304 stainless steel rod for corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without needing external blocks, but it does not lock the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 300 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 SAIJ32BX300-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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 SAIJ32BX300-20S Is Used
Machine Changeover
Quickly fine-tune the 280-300 mm travel endpoint during product size transitions on a packaging line without swapping out the cylinder.
Light-Duty Positioning
Handles 402 N push loads while using the rear stopper to precisely set the retracted position of small pneumatic actuators.
Variable End Stops
Ideal for conveyor sorting arms where the exact retraction distance needs occasional on-site adjustment to match varying package widths.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-20S the Right Cylinder?
Choose this 32 mm bore when an application needs exact end-position tuning on the fly, such as adapting to slightly varying product sizes. If your setup requires less force, a smaller bore would be necessary, but if you need more power, stepping up to a 40 mm bore yields 628 N of push force at 0.5 MPa. For fixed travel without an adjusting screw, the standard SAI series is the alternative. Because the stroke is 300 mm, the unsupported load can generate leverage forces on the 12 mm rod; an external guide rail is recommended to prevent side-load wear. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB and CA options. For load-holding without live air, consider the SAIL or BSAI series instead of relying on the adjuster.
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 SAIJ32BX300-20S 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 can deliver up to 801 N (82 kgf).
The rear adjuster screw lets you shorten the effective stroke by up to 20 mm, creating a 280-300 mm usable travel window. It functions as a mechanical stop for end-position tuning and is not a lock; live air pressure is still required to hold the load.
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