This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X60-50, 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 SIJ63X60-50 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 60mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X60-50, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ63X60-50 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, giving a usable 10-60 mm extend window from the 60 mm nominal maximum. This SIJ series is discontinued; the direct replacement is the SAIJ63X60-50, retaining the same ISO 15552 interface, force, and mounting.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a magnet (-S) and cannot take a sensor. The external stop sets end position but is not a load lock; use SAIL or BSAI for held loads.
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X60-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X60-50 |
| Bore size | Ø63 mm |
| Stroke | 60 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 SAIJ63X60-50 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 SAIJ63X60-50 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. |
| ×60 | 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 the extend stroke on-site by up to 50 mm allows a 63 mm bore actuator to push parts at variable pitches without swapping the entire cylinder body.
Field-trimming the extend end position lets operators reposition a diverting gate precisely along the conveyor line to accommodate changing package widths.
Setting the external stop screw provides a hard, repeatable mechanical end position for light pressing tasks, adjustable within the 10 to 60 mm window.
To replace the discontinued SIJ63X60-50, order the direct replacement SAIJ63X60-50, matching the 63 mm bore, 60 mm stroke, 50 mm adjust window, and G3/8 port. Choose the 50 mm adjust window if you need to trim the extend stroke down to 10 mm on-site. Mounting reuse is fully supported via ISO 15552 interface dimensions with FA, LB, or TC brackets. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. For stroke lengths under 300 mm, side-load risks are minimal, but always verify guide alignment.
Replacement checklist
Yes, the SIJ63X60-50 is discontinued. The direct replacement is the SAIJ63X60-50. It shares the same ISO 15552 interface, 63 mm bore, 60 mm nominal stroke, 50 mm adjust window, G3/8 port, and mounting options, while adding an upgraded piston seal.
The external stop screw window is 50 mm, allowing you to shorten the 60 mm extend stroke down to 10 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 SAIJ63X60-50 replacement — usually within 7-8 hours.