This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X300-10, 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 SIJ80X300-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 300mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X300-10, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X300-10 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 300 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, giving a usable 290-300 mm window. The direct replacement is the SAIJ80X300-10, matching the bore, force, and mounting.
The SAIJ successor retains the ISO 15552 interface and adds an upgraded two Y-shaped one-way piston seal for low start-up pressure. The stop screw sets end position but is not a load lock; use SAIL or BSAI for held loads.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X300-10 |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80X300-10 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 SAIJ80X300-10 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. |
| ×300 | 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).
Trimming the extend stroke by up to 10 mm on-site allows operators to fine-tune press fit depth without machining custom spacers.
Dialing in the exact 290-300 mm extend stop point lets a diverter gate perfectly meet varying product profiles on the line.
Adjusting the extend end position compensates for mixed pallet thicknesses, ensuring consistent clamping force at the end of travel.
To replace the discontinued SIJ80X300-10, order the direct replacement SAIJ80X300-10 (insert A after the leading S), keeping the 80 mm bore, 300 mm stroke, and 10 mm adjust window. Choose the 10 mm adjust window if you only need micro-trim extend tuning. Mounting interfaces (Basic, FA, LB, TC) reuse existing ISO 15552 holes. This SKU lacks the -S magnet, so it cannot take a magnetic switch. For the 300 mm stroke, use external guides to prevent rod bending and side-load wear.
Replacement checklist
Yes, the SIJ80X300-10 is discontinued. The direct replacement is the SAIJ80X300-10. It shares the identical ISO 15552 interface, 80 mm bore, 300 mm stroke, 10 mm adjust window, G3/8 port, and mounting options, but features an upgraded piston seal.
The external stop screw allows trimming the extend stroke by up to 10 mm on-site (usable 290-300 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 SAIJ80X300-10 replacement — usually within 7-8 hours.