This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1000, 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 SI100X1000 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1000mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1000, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X1000 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 1000mm stroke. Delivering 3927N push force at 0.5MPa via a G1/2 port, it is replaced by the SAI100X1000. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, output force, port size and accessories, fitting existing fixtures perfectly.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this specific SKU lacks a magnet (-S) and cannot accept CS1-B/DS1-B sensors. For higher temperatures, Viton H seals raise the limit to 150C.
| Model | Airtac SI100 Standard Cylinder SI100X1000 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1000 |
| Bore size | Ø100 mm |
| Stroke | 1000 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 SAI100X1000 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 SAI100X1000 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. |
| ×1000 | 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 large package pushers across wide conveyor belts, utilizing the full 1000mm travel to shift heavy pallets between processing lanes.
Indexes substantial welding or machining fixtures along a 1-meter path, benefiting from the robust 25mm piston rod and adjustable cushions.
To replace the SI100X1000, order the SAI100X1000 and confirm the ISO 15552 mounting accessory (LB, FA, TC, etc.), G1/2 port thread (PT/G/NPT) and 1000mm stroke. Because this SKU has no magnet, it cannot host position sensors; if sensing is needed, specify an SAI100X1000S. Sizing both ways: the 100mm bore yields 3927N push at 0.5MPa, while the neighboring 80mm bore offers 2513N. For load holding on air loss, note the cushion only decelerates; add an external rod lock, pilot check valve, or use the SAIL/BSAI lock variants. Finally, at 1000mm stroke, use external guides to prevent rod bending and side-load wear.
Replacement checklist
Yes, the AirTAC SI100X1000 is discontinued. The direct replacement is the SAI100X1000. It shares the identical ISO 15552 mounting interface, 100mm bore, 1000mm stroke, force, and G1/2 port, fitting directly into existing setups.
The G1/2 port bore delivers 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a maximum theoretical force of 801kgf at 1.0MPa. It operates at 30-800mm/s with a 25mm rod and M20x1.5 thread.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1000 replacement — usually within 7-8 hours.