Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 550mm 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
- Stroke550 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-50S
The AirTAC SAIJ32X550-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, allowing you to dial back the 550 mm nominal travel to a precise 500-550 mm window during commissioning. It delivers 402 N of push force at 0.5 MPa and reaches speeds between 30-800 mm/s. Equipped with a SUS304 stainless steel rod and a -S magnet, it supports CMSE reed and DMSE electronic sensors via grooves on both sides of the extruded aluminum barrel.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops when tuning end positions. The rear adjuster acts purely as a travel stop and deceleration point, meaning it will not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and features PT tapered port threads.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 550 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 SAIJ32BX550-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×550 | 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 SAIJ32BX550-50S Is Used
Machine Changeover
Quickly fine-tune the 500-550 mm end-stop during product size changes on a packaging line without changing out the cylinder.
Assembly Positioning
Dial in the exact retraction point during commissioning to ensure precise placement of components without adding external stops.
Material Handling
Adjust the travel window on the fly to accommodate varying package lengths on a conveyor sorting system.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-50S the Right Cylinder?
Choose this 32 mm bore model when your application requires 402 N of push force at 0.5 MPa. If you need to step up to the next bore size, the 40 mm version offers 628 N at the same pressure. The SAIJ32X550-50-S is selected when you need fine end-position tuning without external stops, providing a 500-550 mm usable travel window. Because the 550 mm stroke is relatively long for a 12 mm rod, an external guide is recommended to manage side loads and prevent rod deflection.
To match this ISO 15552 interchangeable cylinder, specify a 32 mm bore, 550 mm stroke, 50 mm adjustment, PT port thread, and the -S magnet option. Remember that the rear adjuster is a stop, not a lock; the cylinder will not maintain its position without continuous air supply.
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 SAIJ32BX550-50S FAQ
This 32 mm bore cylinder provides a push force of 402 N and a pull force of 345 N at 0.5 MPa. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster allows you to shorten the 550 mm nominal stroke by up to 50 mm, creating a usable travel window of 500-550 mm. It acts as a travel stop and does not lock the load without live air.
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