This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X160-75S, 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 SIJ80X160-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X160-75S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X160-75S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 160 mm nominal stroke and a 75 mm on-site trim window, letting you set the extend stroke anywhere from 85 to 160 mm via an external stop screw. It features a 25 mm piston rod, M20x1.5 rod-end thread, 36 mm adjustable air cushions, and a G3/8 port. The direct replacement is the SAIJ80X160-75S, preserving the ISO 15552 mounting interface, bore, force, and adjust window.
The SAIJ upgrade incorporates an improved two Y-shaped one-way piston seal for lower start-up pressure and longer life. This -S model includes a piston magnet for legacy CS1-B/DS1-B switches. Remember the stop screw sets end position only; 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 SIJ80X160-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X160-75S |
| Bore size | Ø80 mm |
| Stroke | 160 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 SAIJ80X160-75S 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 SAIJ80X160-75S 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. |
| ×160 | 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).
Tunes the extend stroke on-site by up to 75 mm to accommodate different material thicknesses without swapping the entire actuator.
Sets precise 85 to 160 mm extend positions to push varying carton sizes onto diverging conveyor lanes.
Adjusts the external stop screw to alter the extend endpoint dynamically for different pallet stack heights.
To replace the discontinued SIJ80X160-75S, order the direct replacement SAIJ80X160-75S, keeping the 75 mm adjust window and -S magnet for position sensing. Choose FA, LB, or TC mountings to reuse your existing ISO 15552 interface. For strokes of 300 mm or longer, verify side-load limits to prevent excessive guide wear. The external stop screw adjusts the extend end position but does not lock the load on air loss; for load holding, select an external rod lock, a pilot-operated check valve, or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the AirTAC SIJ80X160-75S is discontinued. The direct replacement is the SAIJ80X160-75S. It shares the identical ISO 15552 interface, 80 mm bore, 160 mm stroke, 75 mm adjust window, G3/8 port, and mounting options, but features an upgraded piston seal for longer life.
The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, giving a usable extend range of 85 to 160 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 SAIJ80X160-75S replacement — usually within 7-8 hours.