This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X80S, 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 SI100X80S
The AirTAC Airtac SI100 Standard Cylinder SI100X80S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X80S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X80S
- 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 SI100X80S
The AirTAC SI100X80S is a discontinued double-acting ISO 15552 profile cylinder featuring an extruded aluminum barrel, a 100mm bore, and an 80mm stroke. Delivering 3927N of push force at 0.5MPa, it is succeeded by the SAI100X80S. This direct upgrade retains the exact ISO 15552 mounting interface, G1/2 port, and output force, fitting existing fixtures perfectly.
The SAI replacement introduces an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B sensors; the SAI uses current AirTAC switches.
Airtac SI100 Standard Cylinder SI100X80S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X80S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X80S |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAI100X80S 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 SAI100X80S 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 SI100X80S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SI100X80S Is Used
Heavy-Duty Pressing
Applies the 3927N push force at 0.5MPa for seating large bearings or clinching heavy sheet metal assemblies.
Pallet Diverting
Drives robust routing gates or stops on high-mass conveyor lines using the 80mm stroke and G1/2 air supply.
Replacing the Airtac SI100 Standard Cylinder SI100X80S with the SAI100X80S
To replace the SI100X80S, order the SAI100X80S. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/2 port thread (PT, G, or NPT), and the M20x1.5 rod-end connection. Because this is a plain double-acting cylinder, it will not hold a load without live air—the cushions only decelerate. For load holding on air loss, specify the SAIL or BSAI lock variant, or use an external pilot check valve. If sizing up or down, adjacent bores (80mm or 125mm) offer 2513N or 6136N push at 0.5MPa. The 80mm stroke is well below the 1500mm standard maximum, so rod-bending side loads are minimal, but always guide the external load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X80S
- ✓ 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 SI100X80S FAQ
Yes, the SI100X80S is discontinued. The direct replacement is the AirTAC SAI100X80S. It is dimensionally interchangeable per ISO 15552, maintaining the same 100mm bore, 80mm stroke, output force, G1/2 port, and mounting interface.
The bore is 100mm with a G1/2 port. The thrust is 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical maximum of 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X80S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X80S replacement — usually within 7-8 hours.