This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X950-100, 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 SIJ80X950-100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 950mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X950-100, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X950-100 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with an 80 mm bore and a 950 mm maximum extend stroke. An external stop screw lets you trim the extend stroke on-site by up to 100 mm, yielding a usable 850-950 mm window. The direct replacement is the SAIJ80X950-100, sharing the exact interface, force, and mounting.
The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note this non-magnetic SKU cannot take a switch. The stop screw sets end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X950-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X950-100 |
| Bore size | Ø80 mm |
| Stroke | 950 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 SAIJ80X950-100 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 SAIJ80X950-100 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. |
| ×950 | 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).
Tuning a 850-950 mm pressing stroke on-site to accommodate different material thicknesses without changing the cylinder body.
Setting precise push-off distances for varying pallet sizes on a long conveyor line using the 100 mm stop-screw window.
Field-adjusting the extend endpoint to divert packages of differing depths into specific sorting lanes.
To replace the discontinued SIJ80X950-100, order the direct replacement SAIJ80X950-100, reusing your FA, LB, or TC ISO 15552 mounts. The 100 mm adjust window lets you tune the extend from 850 to 950 mm on-site. Because the 950 mm stroke invites rod bending, ensure external guides to minimize side-load. This SKU lacks the -S magnet, so it cannot support legacy CS1-B/DS1-B sensors.
Replacement checklist
Yes, the SIJ80X950-100 is discontinued. The direct replacement is the SAIJ80X950-100. It shares the same ISO 15552 interface, 80 mm bore, 950 mm stroke, 100 mm adjust window, G3/8 port, and mounting, but adds an upgraded two Y-shaped one-way piston seal.
The external stop screw provides a 100 mm adjustment window, allowing the 950 mm extend stroke to be shortened to 850 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 SAIJ80X950-100 replacement — usually within 7-8 hours.