This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X575, 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.
Airtac SI100 Standard Cylinder SI100X575
The AirTAC Airtac SI100 Standard Cylinder SI100X575 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 575mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X575, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke575 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X575
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI100 Standard Cylinder SI100X575
The AirTAC SI100X575 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 575mm stroke. It delivers 3927 N push force at 0.5 MPa via a G1/2 port. AirTAC replaced this legacy unit with the SAI100X575, a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
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 non-magnet SKU cannot accept a sensor; the legacy SI used CS1-B/DS1-B switches. The SAI family also adds SAIL, SAIF, and BSAI variants the SI lacked.
Airtac SI100 Standard Cylinder SI100X575 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X575 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X575 |
| Bore size | Ø100 mm |
| Stroke | 575 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 SAI100X575 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100X575 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI100 Standard Cylinder SI100X575
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×575 | 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).
Where the Airtac SI100 Standard Cylinder SI100X575 Is Used
Heavy Press Ejection
Provides the robust 3927 N push at 0.5 MPa needed to eject dense stamped parts from heavy press dies.
Large Package Diverting
Actuates heavy-duty diverter arms across wide conveyor belts, moving bulky goods with reliable ISO 15552 power.
Replacing the Airtac SI100 Standard Cylinder SI100X575 with the SAI100X575
To replace the SI100X575, order the SAI100X575, confirming the ISO 15552 mounting interface, 100mm bore, 575mm stroke, G1/2 port, and accessory type (LB, FA, CA, TC). This non-S SKU lacks a magnet and cannot take a sensor; if sensing is needed, order the SAI100X575S. Sizing both ways: a neighbouring 80mm bore yields 2513 N push at 0.5 MPa, while a 125mm bore yields 6136 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for held loads. With a 575mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X575
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI100 Standard Cylinder SI100X575 FAQ
Yes, the SI100X575 is discontinued. The direct replacement is the AirTAC SAI100X575. It shares the identical ISO 15552 mounting interface, 100mm bore, 575mm stroke, output force, and G1/2 port, fitting existing fixtures perfectly.
The G1/2 port bore delivers a push of 3927 N and pull of 3681 N at 0.5 MPa. At 0.7 MPa push is 5497 N, and 7068 N at 0.9 MPa. The theoretical max force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X575
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X575 replacement — usually within 7-8 hours.