This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1100S, 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 SI100X1100S
The AirTAC SI100 Standard Cylinder SI100X1100S 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 SAI100X1100S, 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 → SAI100X1100S
- 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 SI100X1100S
The AirTAC SI100X1100S is a discontinued double-acting ISO 15552 profile cylinder. It delivers 3927 N push force at 0.5 MPa through a 100 mm bore and G1/2 port. AirTAC replaced this legacy unit with the SAI100X1100S, a direct upgrade retaining the exact same interface, stroke, and mounting hardware.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The -S suffix means a piston magnet for CS1-B/DS1-B sensors; the SAI uses current AirTAC switches. SAIL, SAIF, and BSAI variants expand lock and valve options.
Airtac SI100 Standard Cylinder SI100X1100S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1100S |
| 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 SAI100X1100S 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 SAI100X1100S 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 SI100X1100S
| 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 SI100X1100S Is Used
Long-Stroke Material Push
Drives heavy pallets across transfer lines with 3927 N push force at 0.5 MPa over the full 1100 mm travel.
Heavy Press Actuation
Actuates large press fixtures using the 7068 N push force available at 0.9 MPa, decelerated by 36 mm cushions.
Replacing the Airtac SI100 Standard Cylinder SI100X1100S with the SAI100X1100S
To replace the SI100X1100S, order the SAI100X1100S keeping the 100mm bore, 1100mm stroke, G1/2 port, and ISO 15552 mounting. Verify your thread option (PT/G/NPT) and rod material (carbon, SUS420J2 A, or SUS304 B). For sizing, a 100mm bore yields 3927 N push at 0.5 MPa; dropping to an 80mm bore gives 2513 N, while a 125mm bore yields 6136 N. At 1100mm stroke, prevent rod bending by guiding the load externally. A plain cylinder drifts on air loss; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1100S
- ✓ 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 SI100X1100S FAQ
Yes, the SI100X1100S is discontinued. The direct replacement is the SAI100X1100S. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 1100mm stroke, G1/2 port, and mounting interface.
The 100mm bore provides 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a theoretical max of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s. The G1/2 port and 36mm adjustable cushions handle the kinetic energy.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X1100S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1100S replacement — usually within 7-8 hours.