This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X130-50S, 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X130-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 130mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X130-50S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X130-50S 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 50 mm on-site, giving a usable 80-130 mm window from the 130 mm nominal maximum. The stop sets the end position but is not a load lock.
The direct replacement is the SAIJ80X130-50S, sharing the same ISO 15552 interface, force, and mounting. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. The -S suffix means a piston magnet is present for CS1-B/DS1-B switches.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X130-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X130-50S |
| Bore size | Ø80 mm |
| Stroke | 130 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ80X130-50S 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAIJ80X130-50S 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). |
|---|---|
| 80 | Bore size in mm. |
| ×130 | 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).
Allows operators to dial in the exact 80-130 mm extend position for pressing bearings without machining custom spacers.
Adjusts the extend stroke on-site to deflect varying package sizes on a line, ensuring positive contact without repositioning the cylinder.
Sets a precise mechanical end position for forming folds, easily trimmed by up to 50 mm when pack dimensions change.
To replace the discontinued SIJ80X130-50S, order the direct replacement SAIJ80X130-50S. Choose the 50 mm adjust window when you need on-site extend trimming between 80 and 130 mm. Reuse FA, LB, or TC mounts via the ISO 15552 interface. The -S magnet enables legacy CS1-B/DS1-B sensors. For strokes >=300 mm, verify side-load guidance. The stop screw is not a lock; for load holding without live air, use SAIL, BSAI, or an external rod lock.
Replacement checklist
Yes, the SIJ80X130-50S is discontinued. The direct replacement is the SAIJ80X130-50S. It shares the same ISO 15552 interface, 80 mm bore, 130 mm stroke, 50 mm adjust window, G3/8 port, and mounting, but adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw provides a 50 mm adjust window, shortening the extend stroke from the 130 mm maximum down to 80 mm. The stop sets end position only; it is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X130-50S replacement — usually within 7-8 hours.