This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX110S, 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 SI100AX110S
The AirTAC Airtac SI100 Standard Cylinder SI100AX110S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 110mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX110S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke110 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX110S
- 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 SI100AX110S
The AirTAC SI100AX110S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 110mm stroke. Delivering 3927N push force at 0.5MPa, it features a SUS420J2 stainless rod, G1/2 port, and a piston magnet for CS1-B/DS1-B sensors. AirTAC replaced this with the SAI100AX110S direct.
The SAI100AX110S maintains the exact ISO 15552 mounting interface, bore, stroke, and force. It upgrades the piston seal with two Y-shaped one-way elements for low start-up pressure. For load holding, note that standard cylinders drift without air; use an external rod lock or pilot check valve.
Airtac SI100 Standard Cylinder SI100AX110S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX110S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX110S |
| Bore size | Ø100 mm |
| Stroke | 110 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 SAI100AX110S 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 SAI100AX110S 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 SI100AX110S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×110 | 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 SI100AX110S Is Used
Heavy-Duty Pressing
Applies 3927N of thrust at 0.5MPa for seating bearings or stamping components in automated machinery.
Pallet Diverting
Handles robust 200kg vertical lift loads or heavy lateral pallet redirection using the stainless SUS420J2 rod.
Clamp Fixtures
Secures large workpieces during machining, relying on the 100mm bore's 5497N push force at 0.7MPa.
Replacing the Airtac SI100 Standard Cylinder SI100AX110S with the SAI100AX110S
To replace the SI100AX110S, order the SAI100AX110S direct: it matches the ISO 15552 interface, 100mm bore, 110mm stroke, G1/2 port, and mounting. Confirm your rod material (A=SUS420J2) and magnet (-S for CS1-B/DS1-B switches; SAI uses current AirTAC switches). For sizing down, an 80mm bore yields 2513N push at 0.5MPa; sizing up to 125mm provides 6136N. If you need built-in load holding on air loss, explore the SAIL or BSAI lock variants, as standard cushions only decelerate. Since this is a 110mm stroke, side-load risks are minimal, but always guide the rod to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX110S
- ✓ 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 SI100AX110S FAQ
Yes, the SI100AX110S is discontinued. The direct replacement is the SAI100AX110S, which shares the same ISO 15552 mounting interface, 100mm bore, 110mm stroke, force, and G1/2 port.
It has a G1/2 port. The force ratings are: 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX110S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX110S replacement — usually within 7-8 hours.