This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X750-10, 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 SIJ80X750-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 750mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X750-10, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X750-10 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 10 mm on-site, yielding a usable 740-750 mm window (750 mm is the maximum). The stop sets end position only; it is not a lock.
The direct replacement is the SAIJ80X750-10, preserving the interface, force, and mounting. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Without live air the piston drifts; use an external rod lock or SAIL/BSAI for held loads.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X750-10 |
| Bore size | Ø80 mm |
| Stroke | 750 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 SAIJ80X750-10 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 SAIJ80X750-10 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. |
| ×750 | 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).
Needs field stroke tuning to dial in the exact 740-750 mm extend position for light assembly presses, using the external stop screw to compensate for tooling variations without re-plumbing.
Requires adjustable end-positioning to fine-tune the divertor arm reach on a conveyor line, ensuring precise product routing by trimming the extend stroke by up to 10 mm on-site.
Demands on-site stroke trimming to set the final stopper height for varying pallet sizes, using the 10 mm adjust window to secure exact alignment against the load.
To replace this discontinued SIJ80X750-10, order the direct replacement SAIJ80X750-10, which retains the 10 mm adjust window, G3/8 port, and 36 mm cushions. Choose the 10 mm adjust window if you need minor end-position tuning rather than a fixed stop. Mounting options include Basic, FA, LB, and TC. This SKU lacks a -S magnet and cannot take a magnetic switch. For the 750 mm stroke, use external guides to prevent rod bending and manage side loads.
Replacement checklist
Yes, the SIJ80X750-10 is discontinued. The direct replacement is the SAIJ80X750-10, which shares the same ISO 15552 interface, 80 mm bore, 750 mm stroke, 10 mm adjust window, G3/8 port, and mounting options. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw offers a 10 mm adjust window, allowing you to trim the extend stroke from 750 mm down to 740 mm. The stop sets end position only and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X750-10 replacement — usually within 7-8 hours.