This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X1330TC, 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 Airtac SI63 Standard Cylinder SI63X1330TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 1330mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X1330TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI63X1330TC is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 1330mm stroke, delivering 1559N push force at 0.5MPa via its G3/8 port. As this legacy unit is end-of-life, the direct is the SAI63X1330TC. It matches the exact ISO 15552 mounting interface, bore, stroke, force and TC trunnion mount, dropping straight into existing fixtures.
The SAI upgrade features a refined piston seal with two Y-shaped one-way elements for lower start-up pressure and extended life. Note this specific SKU lacks a magnet (-S) and therefore cannot accept position sensors like the legacy CS1-B/DS1-B.
| Model | Airtac SI63 Standard Cylinder SI63X1330TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X1330TC |
| Bore size | Ø63 mm |
| Stroke | 1330 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 SAI63X1330TC 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 SAI63X1330TC 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. |
| ×1330 | 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).
Drives goods across wide conveyor gaps with a 1330mm reach, utilizing the 1559N push force to index heavy pallets reliably between processing stations.
Extracts totes from deep storage racking via TC trunnion mounting, handling the 79kg safe vertical lift capacity to retrieve inventory smoothly.
Shifts large automotive sub-assemblies down the production line, relying on the 30mm adjustable air cushions to decelerate the payload at stroke end.
To replace the SI63X1330TC, order the SAI63X1330TC to retain the identical ISO 15552 TC trunnion interface, 63mm bore, 1330mm stroke, M16x1.5 rod thread, and G3/8 port. Confirm your thread standard (PT/G/NPT) and note that because this SKU has no magnet, you cannot mount switches; if sensing is required, select an SAI equivalent with the S suffix. For sizing, a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore yields 2513N. Because this is a 1330mm stroke, external guides are strongly recommended to prevent rod bending and excessive side loads. A plain cylinder will not hold a load on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for secure holding.
Replacement checklist
Yes, the SI63X1330TC is discontinued. The direct replacement is the AirTAC SAI63X1330TC. It is dimensionally interchangeable per ISO 15552, retaining the same 63mm bore, 1330mm stroke, G3/8 port, output force, and TC trunnion mounting interface.
This cylinder features a G3/8 air port and a 20mm rod. It delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a theoretical maximum force of 318kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X1330TC replacement — usually within 7-8 hours.