This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X130, 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 SI63 Standard Cylinder SI63X130 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 130mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X130, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI63X130 is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 130mm stroke. It delivers 1559N push force at 0.5MPa via a G3/8 port. The direct replacement is the SAI63X130, which matches the exact interface, bore, stroke, force and mounting dimensions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Because this specific SI SKU lacks the -S magnet suffix, it cannot accept a CS1-B/DS1-B sensor.
| Model | Airtac SI63 Standard Cylinder SI63X130 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X130 |
| Bore size | Ø63 mm |
| Stroke | 130 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 SAI63X130 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 SAI63X130 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. |
| ×130 | 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).
Provides 1559N of clamping force at 0.5MPa for securing mid-sized steel plates during machining operations.
Drives a 130mm stroke pop-up gate arm to route heavy cartons weighing up to 79kg on a distribution line.
Acts as a pneumatic stop for inbound pallets, absorbing kinetic energy using its 30mm adjustable air cushions.
To replace the SI63X130, order the SAI63X130 direct equivalent, confirming the ISO 15552 mounting interface, 130mm stroke, G3/8 port and M16x1.5 rod thread. If you need position sensing, select an SAI63X130S with a magnet instead, as this no-S legacy SKU cannot take a switch. For sizing, a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore provides 2513N. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant to hold loads securely.
Replacement checklist
Yes, the SI63X130 is discontinued. The direct replacement is the AirTAC SAI63X130. It is dimensionally interchangeable per ISO 15552, retaining the same 63mm bore, 130mm stroke, G3/8 port and mounting footprint.
The 63mm bore uses a G3/8 port. It generates 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a theoretical maximum of 318kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X130 replacement — usually within 7-8 hours.