Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-50 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 SAIJ32BX300-50
The AirTAC SAIJ32X300-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 250-300 mm usable travel window. Delivering 402 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod and PT tapered ports. This configuration provides precise end-position tuning at commissioning without swapping the cylinder or adding external stops.
The rear adjuster acts purely as a travel stop and works alongside variable air cushions at both ends to decelerate the piston. It does not hold the load without live air pressure. For load-holding without continuous air, an external rod lock or a SAIL/BSAI variant is required. The extruded aluminum barrel includes sensor grooves on both sides for adding CMSE or DMSE switches.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-50 |
|---|---|
| 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 SAIJ32BX300-50
| 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 SAIJ32BX300-50 Is Used
Product Changeover
Dial in the 250-300 mm travel window during format changes on packaging lines without physically replacing the actuator.
Machine Setup
Fine-tune the retract end-position during initial commissioning to perfectly align tooling without adding external stops.
Variable End Stops
Adjust the effective stroke on the fly for delicate positioning tasks that require precise end-of-travel limits.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX300-50 the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N push force at 0.5 MPa. If your setup demands less force, stepping down is not an option below 32 mm in this series, but stepping up to a 40 mm bore yields 628 N. An adjustable stroke is chosen over a fixed SAI cylinder when you need a variable end-stop for product changeovers. To match this ISO 15552 replacement exactly, specify the 32 mm bore, 300 mm stroke, 50 mm adjustment, PT port thread, and no magnet.
Because the stroke is 300 mm, the 12 mm rod and M10x1.25 thread should be paired with an external guide to prevent excessive side loading on the unsupported length.
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 SAIJ32BX300-50 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 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw allows you to trim the nominal 300 mm stroke back by up to 50 mm, creating a 250-300 mm usable travel window. The adjuster is a mechanical stop, not a lock, so it cannot hold the load without live air pressure.
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