This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X960, 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 SI100X960 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 960mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X960, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X960 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 960 mm stroke. It delivers 3927 N push force at 0.5 MPa through a G1/2 port. The direct replacement is the SAI100X960, which shares the exact same interface, bore, stroke, output force and mounting accessories.
The SAI upgrade features a modernized piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. For applications needing load holding, the SAI family introduces SAIL and BSAI lock variants absent in the SI line.
| Model | Airtac SI100 Standard Cylinder SI100X960 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X960 |
| Bore size | Ø100 mm |
| Stroke | 960 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 SAI100X960 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 SAI100X960 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. |
| ×960 | 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 a 960 mm gap on an assembly line, utilizing the 3927 N thrust at 0.5 MPa.
Actuates oversized clamping fixtures or press beds where a 100 mm bore and extended travel are required.
To replace the SI100X960, order the SAI100X960 and verify your ISO 15552 mounting interface, bore, 960 mm stroke, G1/2 port (PT/G/NPT) and mounting accessory. Because this SKU lacks the -S magnet, it cannot accept a sensor; if position detection is needed, select a magnet-equipped SAI model and use current AirTAC switches (legacy SI used CS1-B/DS1-B). For sizing, a neighboring 80 mm bore yields 2513 N push at 0.5 MPa, while a 125 mm bore yields 6136 N. Note that a plain cylinder does not hold load without live air; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for secure holding. Finally, the 960 mm stroke demands external guide rails to prevent rod bending and excessive side loads.
Replacement checklist
Yes, the SI100X960 is discontinued. The direct replacement is the AirTAC SAI100X960. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 960 mm stroke, G1/2 port, and mounting interface.
This double-acting cylinder features a G1/2 port and M20x1.5 rod thread. It delivers 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 theoretical maximum force of 801 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X960 replacement — usually within 7-8 hours.