This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X80-10, 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X80-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X80-10, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ63X80-10 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued. Its external stop screw lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 70-80 mm extend window from the 80 mm nominal maximum.
The direct replacement is the SAIJ63X80-10, matching the bore, force, adjust window, and mounting. The SAIJ family upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life. This SKU lacks a magnet, so it cannot accept a magnetic switch.
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X80-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X80-10 |
| Bore size | Ø63 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ63X80-10 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAIJ63X80-10 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). |
|---|---|
| 63 | Bore size in mm. |
| ×80 | 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).
Dial in the exact clamping reach on a machining fixture by trimming the extend stroke up to 10 mm on-site, ensuring precise material contact without remounting the cylinder.
Fine-tune a transfer arm's extension distance on a conveyor line to accommodate slight package size variations using the external stop screw.
Set the precise pressing depth for light assembly operations by adjusting the extend stroke within the 70-80 mm usable window to avoid over-travel.
To replace the discontinued SIJ63X80-10, order the direct replacement SAIJ63X80-10, which preserves the ISO 15552 mounting interface, G3/8 port, and 10 mm adjust window. The 10 mm adjust window is ideal for fine-tuning the end position, but remember the stop sets end position and is not a load lock. Mounting options include FA, LB, and TC. Because this SKU has no -S magnet, it cannot support sensing. For stroke lengths over 300 mm, carefully manage side loads to prevent excessive guide wear.
Replacement checklist
Yes, the SIJ63X80-10 is discontinued. The direct replacement is the SAIJ63X80-10. It matches the 63 mm bore, 80 mm stroke, 10 mm adjust window, G3/8 port, and ISO 15552 mounting interface, while adding an upgraded piston seal.
The external stop screw allows you to trim the extend stroke by up to 10 mm on-site, giving a usable extend range of 70-80 mm. 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 SAIJ63X80-10 replacement — usually within 7-8 hours.