This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X210-100S, 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 SIJ80X210-100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 210mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X210-100S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X210-100S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 210 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 110-210 mm window. The 80 mm bore uses a G3/8 port, M20x1.5 rod thread, and 36 mm adjustable air cushions. The direct replacement is the SAIJ80X210-100S, sharing the same interface, force, and adjust window.
The SAIJ successor upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches. Remember the stop screw sets end position; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X210-100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X210-100S |
| Bore size | Ø80 mm |
| Stroke | 210 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 SAIJ80X210-100S 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 SAIJ80X210-100S 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. |
| ×210 | 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).
Dial in exact 110 to 210 mm extend endpoints on-site to press fittings of varying heights without swapping the entire cylinder body.
Trim the extend stroke by up to 100 mm to reposition a sorting gate precisely for different package widths on a packaging line.
Field-tune the 210 mm maximum stroke down to 110 mm to accommodate varying pallet load depths without adding mechanical spacers.
To replace the discontinued SIJ80X210-100S, order the exact direct replacement SAIJ80X210-100S. Select the 100 mm adjust window if you need the full 110-210 mm trim range. Reuse your FA, LB, or TC ISO 15552 mounts directly. The -S magnet supports legacy CS1-B/DS1-B sensors. For strokes at or over 300 mm, verify side-load guide tolerances. The external stop sets end position but does not lock the load on air loss.
Replacement checklist
Yes, the SIJ80X210-100S is discontinued. The direct replacement is the SAIJ80X210-100S. It shares the identical ISO 15552 interface, 80 mm bore, 210 mm stroke, 100 mm adjust window, G3/8 port, and mounting options, while adding an upgraded Y-shaped piston seal.
The external stop screw window is 100 mm, allowing you to trim the extend stroke from the 210 mm maximum down to 110 mm on-site. 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 SAIJ80X210-100S replacement — usually within 7-8 hours.