This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X1300TC, 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 SI63X1300TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 1300mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X1300TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI63X1300TC is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 1300mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa, utilizing a G3/8 port and M16x1.5 rod thread. Because this legacy SI unit is end-of-life, you should order the direct replacement: the SAI63X1300TC. It shares the same ISO 15552 mounting interface, TC trunnion mount, output force, and stroke.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors. Also, the SAI family introduces SAIL, SAIF, and BSAI lock/valve variants absent in the SI line.
| Model | Airtac SI63 Standard Cylinder SI63X1300TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X1300TC |
| Bore size | Ø63 mm |
| Stroke | 1300 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 SAI63X1300TC 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 SAI63X1300TC 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. |
| ×1300 | 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).
Pushes workpieces between machining stations over a 1300mm span, utilizing the 1559N thrust at 0.5MPa to shift heavy pallets along an assembly conveyor.
Actuates a storage diverter arm requiring full 1300mm extension, relying on the TC trunnion mount to accommodate the pivot arc during long-stroke traversal.
To replace the discontinued SI63X1300TC, order the SAI63X1300TC. Confirm the ISO 15552 TC trunnion interface, 63mm bore, 1300mm stroke, G3/8 port, and M16x1.5 thread. Because this SKU has no magnet, it cannot support position sensing; if switches are needed, specify an SAI63X1300TCS. A plain cylinder drifts on air loss—the 30mm cushions only decelerate—so for load holding use an external pilot check valve or the SAIL/BSAI lock variant. At 1300mm, prevent rod bending by guiding the load externally. If sizing alternatives, a 50mm bore yields 982N push, while an 80mm bore yields 2513N at 0.5MPa.
Replacement checklist
Yes, the AirTAC SI63X1300TC is discontinued. The direct replacement is the SAI63X1300TC. It is dimensionally interchangeable per ISO 15552, retaining the identical 63mm bore, 1300mm stroke, G3/8 port, TC trunnion mount, and force ratings.
The 63mm bore uses a G3/8 air port and M16x1.5 rod thread. Force output is 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a maximum theoretical force of 318kgf at 1.0MPa. Operating speed is 30-800mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X1300TC replacement — usually within 7-8 hours.