This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X250-75S, 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 SIJ32X250-75S
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75S 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 SAIJ32X250-75S, 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 → SAIJ32X250-75S
- 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 SIJ32X250-75S
The AirTAC SIJ32X250-75S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore, G1/8 port, and 250 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 175-250 mm window. This model is discontinued; the direct replacement is the SAIJ32X250-75S, sharing the same interface, force, and mounting. The stop screw sets the end position but is not a load lock.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also reuses ISO 15552 mounting and adds SAIL/BSAI lock variants.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75S Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X250-75S |
| 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 SAIJ32X250-75S 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 SAIJ32X250-75S 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 SIJ32X250-75S
| 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 SIJ32X250-75S Is Used
Variable Pitch Push Stations
Tuning the extend stroke on-site by up to 75 mm allows a single 32 mm bore cylinder to adapt to different material thicknesses without changing fixtures.
Customizable End Stops
The external stop screw provides a hard mechanical end position for varying pallet widths, avoiding the need to swap out the entire cylinder.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75S with the SAIJ32X250-75S
To replace the discontinued SIJ32X250-75S, order the direct replacement SAIJ32X250-75S, keeping the 32 mm bore, 250 mm stroke, 75 mm adjust window, and -S magnet for CS1-B/DS1-B switches. Choose the 75 mm adjust window if you need on-site extend tuning from 175 to 250 mm. Mounting options include Basic, FA, LB, and TC. For strokes of 300 mm or longer, verify side-load limits. The stop screw sets position but does not hold loads without live air; use SAIL or an external rod lock for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X250-75S
- ✓ 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 SIJ32X250-75S FAQ
Yes, the SIJ32X250-75S is discontinued. The direct replacement is the SAIJ32X250-75S, which shares the same ISO 15552 interface, 32 mm bore, 250 mm stroke, 75 mm adjust window, and G1/8 port. The SAIJ also uses an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, giving a usable window of 175-250 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X250-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X250-75S replacement — usually within 7-8 hours.