Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 250mm 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
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-50S
The AirTAC SAIJ32X250-50-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 200-250 mm usable travel window, letting you dial back the nominal 250 mm stroke by up to 50 mm during commissioning without adding external stops. In the 32 mm bore class, it delivers 402 N of push force at 0.5 MPa and 724 N at 0.9 MPa.
This variant uses a SUS304 stainless steel rod for corrosion resistance and includes a magnet (-S) for CMSE reed and DMSE electronic sensors. It features PT tapered ports, variable air cushions at both ends, and extruded aluminum barrel with sensor grooves on both sides. The rear adjuster acts purely as a mechanical stop to set the retract end position; it does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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 SAIJ32BX250-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 SAIJ32BX250-50S Is Used
Machine Changeover
Fine-tune the 200-250 mm retract end-stop during product size changes on a packaging line without swapping the cylinder.
End-Position Tuning
Dial in the exact clamping or positioning depth at commissioning using the 50 mm rear adjustment screw.
Variable Diverter Stops
Adjust the stroke length on the fly to handle different package sizes on a conveyor sorting system.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-50S the Right Cylinder?
Choose this 32 mm bore adjustable cylinder when you need precise end-position tuning for product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. If your application requires higher thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Because the 250 mm stroke is substantial for a 32 mm bore, the 12 mm rod and M10x1.25 thread should be supported by an external guide to prevent excessive side-loading.
To match this ISO 15552 interchangeable cylinder, specify: 32 mm bore, 250 mm nominal stroke, 50 mm adjustment range, PT G1/8 port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and the -S magnet. For applications requiring true load-holding without live air, consider the SAIL or BSAI locking cylinders instead of relying on the rear stopper.
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 SAIJ32BX250-50S 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 0.9 MPa, the push force increases to 724 N.
The rear adjuster screw mechanically limits the piston's travel, allowing you to shorten the effective stroke from 250 mm down to 200 mm. It acts as a travel stop and does not lock or hold the load without continuous air pressure.
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