This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X230-30, 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 SIJ63X230-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 230mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X230-30, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ63X230-30 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63mm bore and 230mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 30mm on-site, yielding a usable 200-230mm window. The G3/8 port and 30mm adjustable cushions match standard dimensions. As this SIJ is end-of-life, the direct replacement is the SAIJ63X230-30, retaining the same interface, force, and mounting.
The SAIJ upgrade uses a two Y-shaped one-way piston seal for lower start-up pressure. The stop screw sets end position but is not a load lock; for held loads use SAIL or BSAI variants. This SKU lacks a magnet, so it cannot take a switch.
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X230-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X230-30 |
| Bore size | Ø63 mm |
| Stroke | 230 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 SAIJ63X230-30 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 SAIJ63X230-30 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. |
| ×230 | 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).
Allows operators to dial in the exact 200-230mm extend position for pressing bearings without machining hard stops.
Adjusts the extend reach on-site to accommodate different package widths on a sorting line.
Fine-tunes the end stop location for varying pallet depths without swapping out the entire actuator.
To replace the discontinued SIJ63X230-30, order the direct replacement SAIJ63X230-30, ensuring your ISO 15552 mounting (Basic, FA, LB, or TC) and G3/8 porting transfer directly. The 30mm adjust window gives a 200-230mm extend range; if you need less fine-tuning, a fixed SAI is simpler, but SAIJ beats adding an external stop. This non-magnetic SKU cannot accept a sensor; for switching, select the -S version (legacy CS1-B/DS1-B). For this 230mm stroke, verify side-load alignment to prevent rod seal wear. Remember, the stop screw sets position but does not lock; use an external rod lock for load holding.
Replacement checklist
Yes, the SIJ63X230-30 is discontinued. The direct replacement is the SAIJ63X230-30. It shares the same ISO 15552 interface, 63mm bore, 230mm stroke, 30mm adjust window, G3/8 port, and mounting options, but features an upgraded two Y-shaped one-way piston seal for lower start-up pressure.
The external stop screw provides a 30mm adjustment window, allowing the extend stroke to be shortened from the 230mm maximum down to 200mm on-site. 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 SAIJ63X230-30 replacement — usually within 7-8 hours.