This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1120, 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 SI100X1120
The AirTAC Airtac SI100 Standard Cylinder SI100X1120 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1120mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1120, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1120 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X1120
- 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 SI100X1120
The AirTAC SI100X1120 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 1120mm stroke. It delivers 3927 N push force at 0.5 MPa via a G1/2 port. The direct replacement is the SAI100X1120, matching the interface, force, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This non-magnet SKU cannot take a sensor, unlike legacy CS1-B/DS1-B switches. For high heat, Viton H seals raise the temperature limit to 150 C.
Airtac SI100 Standard Cylinder SI100X1120 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1120 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1120 |
| Bore size | Ø100 mm |
| Stroke | 1120 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 SAI100X1120 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 SAI100X1120 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 SI100X1120
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1120 | 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 SI100X1120 Is Used
Long-Stroke Material Transfer
Moves heavy pallets or workpieces across extended machining centers using the full 1120mm travel and 3927 N push force.
High-Reach Pallet Pushing
Ejects packaged goods from elevated storage lanes where a 200 kg vertical lift capacity and long extension are required.
Automated Assembly Line Indexing
Shifts large automotive sub-assemblies between stations, relying on the ISO 15552 mounting interface for rigid fixture integration.
Replacing the Airtac SI100 Standard Cylinder SI100X1120 with the SAI100X1120
To replace the SI100X1120, order the SAI100X1120 keeping the identical 100mm bore, 1120mm stroke, G1/2 port, and ISO 15552 mounting. Confirm your thread option (PT, G, or NPT) and mounting accessory (like FA flange or TC trunnion). This SKU lacks the -S magnet, so it cannot accept a position switch; if sensing is needed, switch to a magnet-equipped SAI model. At 0.5 MPa it pushes 3927 N (pull 3681 N); sizing down, a 80mm bore gives 2513 N. Because the stroke is 1120mm, use an external guide to prevent rod bending and side-load damage. The air cushion only decelerates the piston; it does not hold load on air loss, so add a pilot check valve or consider the SAIL or BSAI lock variants for secure holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1120
- ✓ 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 SI100X1120 FAQ
Yes, the AirTAC SI100X1120 is discontinued. The direct replacement is the SAI100X1120. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 100mm bore, 1120mm stroke, output force, G1/2 port, and mounting accessories.
This double-acting cylinder uses a G1/2 port. It delivers a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. At 0.7 MPa the push force is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X1120
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1120 replacement — usually within 7-8 hours.