This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X120H, 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 SI100X120H
The AirTAC SI100 Standard Cylinder SI100X120H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 120mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X120H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke120 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X120H
- 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 SI100X120H
The AirTAC SI100X120H is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 120mm stroke. Delivering 3927N push force at 0.5MPa via a G1/2 port, it is replaced by the SAI100X120H. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, force and port, fitting existing fixtures directly.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The -H suffix denotes a Viton H seal, extending operating temperature to 0-150C. Note this SKU lacks a magnet (-S) so it cannot take a sensor.
Airtac SI100 Standard Cylinder SI100X120H Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X120H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X120H |
| Bore size | Ø100 mm |
| Stroke | 120 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 SAI100X120H 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 SAI100X120H 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 SI100X120H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×120 | 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 SI100X120H Is Used
Heavy Stamping Press
Drives heavy-duty stamping and forming dies requiring substantial thrust, utilizing the 3927N push force at 0.5MPa to shape thick metal components reliably.
High-Temp Ejection
Ejects molded parts near ovens or hot environments, leveraging the Viton H high-temperature seal rated for 0 to 150C to prevent premature degradation.
Replacing the Airtac SI100 Standard Cylinder SI100X120H with the SAI100X120H
To replace the SI100X120H, order the SAI100X120H. Verify the ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/2 port, and the M20x1.5 rod thread. Because this SKU lacks a magnet, it cannot accept CS1-B/DS1-B sensors; if sensing is needed, specify an SAI100X120HS. Sizing both ways: the 100mm bore yields 3927N push at 0.5MPa (5497N at 0.7MPa), while an 80mm bore offers 2513N. For load holding, note a plain cylinder drifts on air loss—the cushion only decelerates. Use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The SAIF variant adds a built-in 4M valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X120H
- ✓ 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 SI100X120H FAQ
Yes, the SI100X120H is discontinued. The direct replacement is the SAI100X120H. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 120mm stroke, G1/2 port, and mounting interface. You simply order the SAI equivalent.
The bore is 100mm with a G1/2 air port and M20x1.5 rod thread. Force output is 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical max of 801kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X120H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X120H replacement — usually within 7-8 hours.