This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX80, 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 SI100AX80
The AirTAC Airtac SI100 Standard Cylinder SI100AX80 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 SAI100AX80, 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 → SAI100AX80
- 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 SI100AX80
The AirTAC SI100AX80 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke. It delivers a push force of 3927 N and pull of 3681 N at 0.5 MPa. The direct replacement is the SAI100AX80, matching the bore, stroke, force, G1/2 port, and ISO 15552 mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. This specific SKU uses a SUS420J2 stainless rod (-A) and lacks a magnet, so it cannot take a sensor. For high heat, choose the Viton H seal.
Airtac SI100 Standard Cylinder SI100AX80 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX80 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX80 |
| 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 SAI100AX80 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 SAI100AX80 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 SI100AX80
| 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 SI100AX80 Is Used
Heavy-Duty Pressing
Drives large stamping or forming presses requiring 3927 N of push force at 0.5 MPa with an 80 mm stroke.
Corrosive Material Handling
Ideal for damp or washdown environments utilizing the SUS420J2 stainless steel piston rod option.
Replacing the Airtac SI100 Standard Cylinder SI100AX80 with the SAI100AX80
To replace the SI100AX80, order the SAI100AX80. Confirm the ISO 15552 mounting interface, 100 mm bore, 80 mm stroke, G1/2 port, and SUS420J2 rod. Because this SKU lacks a magnet (-S), it cannot accept position sensors. For sizing, the 100 mm bore yields 3927 N push at 0.5 MPa; dropping to an 80 mm bore gives 2513 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for holding, or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX80
- ✓ 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 SI100AX80 FAQ
Yes, the SI100AX80 is discontinued. The direct replacement is the SAI100AX80. It features the same ISO 15552 mounting interface, 100 mm bore, 80 mm stroke, output force, and G1/2 port, fitting directly into existing fixtures.
It has 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 SAI100AX80
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX80 replacement — usually within 7-8 hours.