This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X250-20, 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 SIJ32X250-20
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X250-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 250mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X250-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X250-20
- 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 SIJ32X250-20
The AirTAC SIJ32X250-20 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 230-250 mm forward travel from the 250 mm nominal maximum.
As the SIJ line is end-of-life, the direct replacement is the SAIJ32X250-20, preserving the ISO 15552 mounting interface, force, and travel. The SAIJ upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and longer life. Note this SKU lacks a magnet (-S) and cannot accept a sensor; furthermore, the stop screw sets end position but is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X250-20 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X250-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X250-20 |
| 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 standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ32X250-20 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 SAIJ32X250-20 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 SIJ32X250-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 SIJ32X250-20 Is Used
Actuator End-Position Trimming
Ideal for assembly stations needing precise 230-250 mm extend endpoints, using the 20 mm stop screw to dial in the exact forward position without machining spacers.
Package Divert Stroke Tuning
Useful on diverters where the extend reach must be tweaked on-site by up to 20 mm to accommodate varying package widths without reprogramming the PLC.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X250-20 with the SAIJ32X250-20
To replace the discontinued SIJ32X250-20, order the direct replacement SAIJ32X250-20, which matches the 32 mm bore, 250 mm stroke, 20 mm adjust window, G1/8 port, and ISO 15552 mounting dimensions. The 20 mm adjust window is ideal for fine-tuning the 230-250 mm extend stroke without shims. Mounting interchangeability is maintained across Basic, FA, LB, and TC interfaces. Because this specific SKU has no -S magnet, it cannot support legacy CS1-B or DS1-B sensors; confirm if a magnetic piston is required for your control system. For strokes of 300 mm or greater, carefully manage side-load forces to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X250-20
- ✓ 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 SIJ32X250-20 FAQ
Yes, the AirTAC SIJ32X250-20 is discontinued. The direct replacement is the SAIJ32X250-20. It shares the identical ISO 15552 interface, 32 mm bore, 250 mm stroke, 20 mm adjust window, G1/8 port, and mounting options, while adding an upgraded two-piece Y-shaped piston seal for longer life.
The external stop screw provides a 20 mm adjust window, allowing you to shorten the extend stroke from the 250 mm maximum down to 230 mm. Remember the stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X250-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X250-20 replacement — usually within 7-8 hours.