This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1000SCB, 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 SI100X1000SCB 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 SAI100X1000SCB, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X1000SCB is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 1000mm stroke. It delivers 3927N push force at 0.5MPa via a G1/2 port. AirTAC replaced this legacy unit with the SAI100X1000SCB, a direct upgrade retaining the exact ISO 15552 mounting interface, CB clevis, stroke and output force.
The SAI upgrade features a revised piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. With a 1000mm stroke, external guides are essential to prevent rod bending under side loads. The -S magnet works with legacy CS1-B/DS1-B switches, while the SAI family adds SAIL lock and BSAI clamp variants.
| Model | Airtac SI100 Standard Cylinder SI100X1000SCB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1000SCB |
| 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 SAI100X1000SCB 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 SAI100X1000SCB 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 diverters or sorting gates over a 1000mm reach, utilizing the 3927N push force to reliably shift heavy palletized goods across wide transfer lines.
Acts as a main push cylinder in palletizing cells, moving assembled loads onto outbound conveyors where the CB clevis accommodates the required articulation.
Ejects dense manufactured parts or stacked materials from machinery beds, taking advantage of the 801 kgf maximum theoretical force for stubborn jam-clearing strokes.
To replace the SI100X1000SCB, order the SAI100X1000SCB. Verify your ISO 15552 interface, CB clevis mounting, G1/2 port, and the -S magnet for CS1-B/DS1-B sensors. The SAI family also offers the SAIL air-released lock or BSAI clamp-lock for load holding, as a plain cylinder drifts without live air and its cushions only decelerate. If downsizing, a 80mm bore yields 2513N at 0.5MPa; if upsizing, a 125mm bore yields 6136N. For this 1000mm stroke, use external guides to prevent rod-bending side loads. Rod material options include carbon steel, SUS420J2 (A) or SUS304 (B).
Replacement checklist
Yes, the SI100X1000SCB is discontinued. The direct replacement is the SAI100X1000SCB. It matches the ISO 15552 mounting interface, 100mm bore, 1000mm stroke, G1/2 port, CB clevis and force ratings, fitting existing fixtures perfectly.
At 0.5MPa it provides 3927N push and 3681N pull. At 0.7MPa push is 5497N, and at 0.9MPa it is 7068N. The theoretical max force is 801 kgf at 1.0MPa. Operating speed is 30-800 mm/s, and it uses a G1/2 port.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1000SCB replacement — usually within 7-8 hours.