This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X600-30S, 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 SIJ80X600-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 600mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X600-30S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X600-30S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. A 600 mm nominal extend is trimmed by up to 30 mm on-site via an external stop screw, yielding a usable 570-600 mm window. The direct replacement is the SAIJ80X600-30S, sharing the ISO 15552 mounting interface, force, and adjust window.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The stop screw sets end position but is not a load lock; plain cylinders drift on air loss, so use an external rod lock or SAIL/BSAI variant for held loads. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X600-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X600-30S |
| Bore size | Ø80 mm |
| Stroke | 600 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 SAIJ80X600-30S 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 SAIJ80X600-30S 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. |
| ×600 | 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).
Adjustable end-stop allows on-site tuning of the 570-600 mm extend for varying product lengths without changing the cylinder.
Fine-tune the diverter stroke by up to 30 mm to accommodate different package sizes on the fly.
Set precise stopping positions for pallets of varying heights, using the external screw to dial in the exact 600 mm extend.
To replace the SIJ80X600-30S, order the direct replacement SAIJ80X600-30S, retaining the 30 mm adjust window and G3/8 port. Reuse FA, LB, or TC ISO 15552 mounts directly. The -S magnet supports legacy CS1-B/DS1-B sensors. For this 600 mm stroke, support side-loads with external guides to prevent rod bending.
Replacement checklist
Yes, the SIJ80X600-30S is discontinued. The direct replacement is the SAIJ80X600-30S, which shares the same ISO 15552 interface, 80 mm bore, 600 mm stroke, 30 mm adjust window, and G3/8 port.
The external stop screw allows trimming the extend stroke by up to 30 mm on-site, yielding a usable 570-600 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 SAIJ80X600-30S replacement — usually within 7-8 hours.