This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1300S, 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 SI100 Standard Cylinder SI100X1300S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1300mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1300S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X1300S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 1300mm stroke. It delivers 3927 N push force at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100X1300S, a direct upgrade retaining the exact interface, bore, stroke, force, and mounting. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life.
The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B sensors; the SAI replacement uses current AirTAC switches. The SAI family also introduces lock variants like the SAIL and BSAI that the original SI line lacked.
| Model | Airtac SI100 Standard Cylinder SI100X1300S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1300S |
| Bore size | Ø100 mm |
| Stroke | 1300 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI100X1300S 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100X1300S 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). |
|---|---|
| 100 | 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 heavy pallets or workpieces across 1300mm gaps between conveyor sections using 3927 N of thrust at 0.5 MPa.
Controls the 1300mm descent of vertical loads, relying on the 36mm adjustable air cushions to decelerate safely at stroke end.
Ejects formed parts from heavy machinery where the 100mm bore and 7068 N thrust at 0.9 MPa provide robust ejection force.
To replace the SI100X1300S, order the SAI100X1300S. Confirm the ISO 15552 mounting interface, G1/2 port, M20x1.5 rod thread, and 1300mm stroke. Because this is a 1300mm stroke, external guides are strongly recommended to prevent rod bending and excessive side loads. If sizing down, a 80mm bore yields 2513 N push at 0.5 MPa; sizing up to 125mm provides 6136 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or explore the SAIL air-released lock or BSAI clamp-lock variants.
Replacement checklist
Yes, the SI100X1300S is discontinued. The direct replacement is the SAI100X1300S. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 1300mm stroke, 3927 N force, G1/2 port, and mounting fixtures.
The G1/2 port is fixed by the 100mm bore. At 0.5 MPa it provides 3927 N push and 3681 N pull. At 0.7 MPa push is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1300S replacement — usually within 7-8 hours.