This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X30-10S, 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 SIJ63X30-10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 30mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X30-10S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ63X30-10S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, giving a usable 20-30 mm extend range from the 30 mm nominal maximum. The direct replacement is the SAIJ63X30-10S, matching the interface, force, and adjust window.
Upgrading to the SAIJ family brings an upgraded piston seal using two Y-shaped one-way elements for low start-up pressure and long life. The stop screw sets the end position but is not a load lock; for held loads use an external rod lock or the SAIL/BSAI variants.
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X30-10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X30-10S |
| Bore size | Ø63 mm |
| Stroke | 30 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 SAIJ63X30-10S 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 SAIJ63X30-10S 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. |
| ×30 | 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).
Adjusts the final 20-30 mm clamping contact point on machined parts on-site without swapping cylinders.
Tunes the extend stop position precisely to deflect varying package sizes on a sorting line.
Dials in the exact insertion depth within a 10 mm window to prevent over-travel on delicate assemblies.
To replace the discontinued SIJ63X30-10S, specify SAIJ63X30-10S for an direct match. Choose the 10 mm adjust window when you need precise 20-30 mm extend tuning. Reuse FA, LB, or TC ISO 15552 mounts. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches. As stroke is under 300 mm, side-load risks are minimal. Remember, the stop screw is not a lock; for load holding without live air, use SAIL, BSAI, or an external rod lock.
Replacement checklist
Yes, the SIJ63X30-10S is discontinued. The direct replacement is the SAIJ63X30-10S, which matches the 63 mm bore, 30 mm stroke, 10 mm adjust window, G3/8 port, and ISO 15552 mounting interface.
The external stop screw offers a 10 mm adjust window, shortening the 30 mm nominal extend stroke down to 20 mm on-site. 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 SAIJ63X30-10S replacement — usually within 7-8 hours.