This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X25-30, 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.

The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X25-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 25mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X25-30, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X25-30 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 30 mm on-site, meaning the nominal 25 mm stroke is the maximum and the end position is fully tunable to your fixture. The stop sets the end position but is not a load lock. This 32 mm bore unit features a 12 mm rod, M10x1.25 rod thread, G1/8 port, and 27 mm adjustable air cushions.
The direct replacement is the SAIJ32X25-30, sharing the same ISO 15552 mounting interface, force, and adjust window. The SAIJ upgrade uses an improved two Y-shaped one-way piston seal for low start-up pressure and long life. Note this non-magnetic SKU cannot take a switch. A plain cylinder drifts on air loss; use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X25-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X25-30 |
| Bore size | Ø32 mm |
| Stroke | 25 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 SAIJ32X25-30 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAIJ32X25-30 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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).
Ideal for clamping small parts where the extend stop screw is tuned on-site to accommodate varying material thicknesses without reprogramming the machine.
Used in basic pneumatic ejection stations that do not require position feedback, relying on the external stop to set a precise 0-25 mm ejection length.
Deployed in manual tooling fixtures where the mechanic dials in the exact extend end-position by trimming the stroke up to 30 mm to seat the part correctly.
To replace the discontinued SIJ32X25-30, order the direct replacement SAIJ32X25-30, which matches the 32 mm bore, 25 mm stroke, 30 mm adjust window, G1/8 port, and ISO 15552 mounting. Choose the 30 mm adjust window if you need to dial in the extend end-position on-site; the stop screw sets this position but does not lock the load. Mounting options include Basic, FA, LB, and TC brackets. This SKU lacks the -S magnet and cannot accept a sensor. Because the 25 mm stroke is under 300 mm, side-load rod deflection is minimal. The cylinder operates at 30-800 mm/s.
Replacement checklist
Yes, the SIJ32X25-30 is discontinued. The direct replacement is the SAIJ32X25-30. It shares the same ISO 15552 interface, 32 mm bore, 25 mm nominal stroke, 30 mm adjust window, G1/8 port, and mounting options, while adding an upgraded piston seal.
The external stop screw provides a 30 mm adjust window to trim the extend stroke on-site (usable 0-25 mm). The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X25-30 replacement — usually within 7-8 hours.