This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X700N, 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 SI100X700N is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 700mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X700N, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X700N is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 700mm stroke. It delivers 3927 N push force at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100X700N, a direct sharing the exact interface, bore, stroke, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. This SKU lacks a magnet, so it cannot take a sensor. The NBR seal handles -20 to +70 C, while Viton H extends this to 150 C.
| Model | Airtac SI100 Standard Cylinder SI100X700N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X700N |
| Bore size | Ø100 mm |
| Stroke | 700 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 SAI100X700N 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 SAI100X700N 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. |
| ×700 | 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).
Leverages the 700mm stroke to reach across wide transfer lines, sorting heavy pallets laterally without requiring complex multi-stage actuators.
To replace the SI100X700N, order the SAI100X700N and confirm the ISO 15552 mounting interface, 100mm bore, 700mm stroke, and G1/2 port. This non-magnet SKU cannot accept CS1-B/DS1-B switches. If sizing up or down, note the 80mm bore yields 2513 N push while the 125mm yields 6136 N at 0.5 MPa. Because the 700mm stroke invites rod bending, use an external guide to prevent side loads. A plain cylinder drifts on air loss; for load holding, specify an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI100X700N is discontinued. The direct replacement is the SAI100X700N. It shares the identical ISO 15552 mounting interface, 100mm bore, 700mm stroke, output force, and G1/2 port, fitting existing fixtures perfectly.
The 100mm bore uses a G1/2 port. It generates 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a maximum theoretical force of 801 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X700N replacement — usually within 7-8 hours.