This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1100, 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 SI100X1100
The AirTAC Airtac SI100 Standard Cylinder SI100X1100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X1100
- 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 SI100X1100
The AirTAC SI100X1100 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 1100 mm stroke. It delivers 3927 N push force at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100X1100, a direct replacement sharing the exact ISO 15552 mounting interface, stroke, force, and accessories. 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 SKU lacks a magnet (-S) and cannot accept a CS1-B/DS1-B sensor. For high heat, Viton H seals raise the temperature limit to 150 C.
Because this is a 1100 mm extended stroke, external guides are recommended to prevent rod bending under side loads. The plain cylinder does not hold load without live air; the cushions only decelerate. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants the SI line lacked.
Airtac SI100 Standard Cylinder SI100X1100 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1100 |
| Bore size | Ø100 mm |
| Stroke | 1100 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 SAI100X1100 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 SAI100X1100 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 SI100X1100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1100 | 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 SI100X1100 Is Used
Large Part Ejection
Pushes heavy molded components out of press beds using 3927 N of thrust at 0.5 MPa over a 1100 mm reach.
Pallet Transfer
Actuates large format pallets between roller sections where a 100 mm bore and extended 1100 mm stroke are required.
Replacing the Airtac SI100 Standard Cylinder SI100X1100 with the SAI100X1100
To replace the SI100X1100, order the SAI100X1100. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC), the G1/2 port, and the M20x1.5 rod thread. This non-magnet SKU cannot take a sensor; if position detection is needed, switch to an SAI100X1100S. Sizing both ways: the 100 mm bore yields 3927 N push at 0.5 MPa (801 kgf max at 1.0 MPa). If less force is acceptable, an 80 mm bore provides 2513 N push at 0.5 MPa. For load holding on air loss, the cushion only decelerates; specify an external rod lock, a pilot check valve, or the SAIL air-released lock variant. At 1100 mm stroke, use external guides to prevent rod bending. The SAI family also adds the SAIF self-valve option (bores 32-100).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1100
- ✓ 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 SI100X1100 FAQ
Yes, the SI100X1100 is discontinued. The direct replacement is the SAI100X1100. It shares the same ISO 15552 mounting interface, 100 mm bore, 1100 mm stroke, output force, G1/2 port, and accessories, fitting directly into existing fixtures.
The 100 mm bore uses a G1/2 port. Force ratings are: 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 max of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X1100
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1100 replacement — usually within 7-8 hours.