This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X275-75, 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 SIJ32X275-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 275mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X275-75, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X275-75 is a double-acting, double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 275 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 200-275 mm window. This model is DISCONTINUED; the direct replacement is the SAIJ32X275-75, retaining the G1/8 port, M10x1.25 rod thread, and 27 mm cushions. The stop sets the end position but is not a load lock.
The SAIJ upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and longer life. This non-magnet SKU cannot take a switch.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X275-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X275-75 |
| Bore size | Ø32 mm |
| Stroke | 275 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 SAIJ32X275-75 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 SAIJ32X275-75 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. |
| ×275 | 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).
Tuning the extend stroke on-site by up to 75 mm allows a single 32 mm bore cylinder to push parts at varying pitches without swapping the entire actuator.
Trimming the 275 mm extend stroke lets operators reposition a conveyor stop block precisely in the field to accommodate different package sizes.
Setting the extend end position between 200 and 275 mm enables a packaging line to eject boxes of varying depths from a single station.
To replace the discontinued SIJ32X275-75, order the direct replacement SAIJ32X275-75, reusing your existing ISO 15552 mounting hardware (Basic, FA, LB, or TC). Choose the 75 mm adjust window if your extend stroke needs on-site tuning between 200 and 275 mm. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors; confirm if sensing is required. For strokes of 300 mm or longer, verify side-load limits to prevent rod distortion. The external stop sets end position but does not lock; for load-holding without live air, use an external rod lock or the SAIL/BSAI variants.
Replacement checklist
Yes, the SIJ32X275-75 is discontinued. The direct replacement is the SAIJ32X275-75. It shares the same ISO 15552 interface, 32 mm bore, 275 mm stroke, 75 mm adjust window, G1/8 port, and mounting options, but adds an upgraded two-piece Y-shaped piston seal.
The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, giving a usable 200-275 mm window. 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 SAIJ32X275-75 replacement — usually within 7-8 hours.