This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X225-40S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-40S
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X225-40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 225mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X225-40S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke225 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X225-40S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-40S
The AirTAC SIJ32X225-40S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and superseded by the direct replacement SAIJ32X225-40S. It features a 32mm bore, G1/8 port, and an external stop screw allowing you to trim the extend stroke by up to 40mm on-site, yielding a usable 185-225mm range from the 225mm nominal maximum. The stop sets the end position but is not a load lock.
The SAIJ replacement retains the exact ISO 15552 mounting interface, porting, and force, but upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches; note that a plain cylinder drifts on air loss and needs an external rod lock for holding.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-40S Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X225-40S |
| Bore size | Ø32 mm |
| Stroke | 225 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 standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ32X225-40S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / 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 | |
The SAIJ32X225-40S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-40S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-40S Is Used
Actuator Probe Positioning
Testing stations needing precise touch-point depth can field-tune the 185-225mm extend stroke via the stop screw to adapt to sensor heights without machining spacers.
Variable-Length Diverter
Sorting arms can adjust the extend endpoint by up to 40mm on-site to deflect varying package sizes accurately down the correct lane.
Adjustable Push-Off Stop
Packaging lines use the external stop to set exact product push-off distances, allowing rapid changeovers between carton depths.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-40S with the SAIJ32X225-40S
To replace the discontinued SIJ32X225-40S, order the direct replacement SAIJ32X225-40S, matching the 32mm bore, 225mm stroke, 40mm adjust window, and -S magnet. The 40mm adjust window is ideal if your field stroke tuning needs fall within 185-225mm; for larger trims, step up the adjust figure. Mounting is fully reusable across the ISO 15552 interface (Basic, FA, LB, TC). Because the 225mm stroke is under 300mm, side-load rod deflection is minimal. Remember the external stop screw merely sets the end position—it is not a lock—and without live air the piston will drift, so specify an external rod lock or SAIL/BSAI variant for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X225-40S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-40S FAQ
Yes, the SIJ32X225-40S is discontinued. The direct replacement is the SAIJ32X225-40S, sharing the same ISO 15552 interface, 32mm bore, 225mm stroke, 40mm adjust window, and G1/8 port. The SAIJ family features an upgraded piston seal for longer life.
The external stop screw allows trimming the extend stroke by up to 40mm on-site, giving a usable 185-225mm range. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X225-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X225-40S replacement — usually within 7-8 hours.