This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X470, 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 SI100X470 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 470mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X470, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X470 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 470mm stroke. It delivers 3927 N push and 3681 N pull at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100X470, a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This specific SKU lacks a magnet (-S), so it cannot accept CS1-B or DS1-B sensors. For high-temperature environments up to 150 C, a Viton H seal option is available.
| Model | Airtac SI100 Standard Cylinder SI100X470 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X470 |
| Bore size | Ø100 mm |
| Stroke | 470 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 SAI100X470 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 SAI100X470 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. |
| ×470 | 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).
Routes heavy pallets along high-throughput packaging lines using robust 3927 N push force at 0.5 MPa.
Ejects molded components from machinery, relying on the 36 mm adjustable air cushions to decelerate at stroke end.
To replace the SI100X470, order the SAI100X470 and verify your ISO 15552 mounting interface, G1/2 port thread (PT/G/NPT), and M20x1.5 rod-end connection. Because this 470mm stroke exceeds 300mm, use external guides to prevent rod bending and premature seal wear from side loads. If sizing up or down, the 80mm bore yields 2513 N push at 0.5 MPa, while the 125mm bore provides 6136 N. This non-magnetic version cannot support position sensing. Note that a standard cylinder drifts on air loss; for load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve.
Replacement checklist
Yes, the AirTAC SI100X470 is discontinued. The direct replacement is the SAI100X470. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 470mm stroke, 3927 N output force, G1/2 port, and mounting accessories.
The bore is 100mm with a G1/2 air port. At 0.5 MPa it pushes 3927 N and pulls 3681 N. 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. Speed ranges from 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X470 replacement — usually within 7-8 hours.