This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX230S, 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 SI100AX230S
The AirTAC Airtac SI100 Standard Cylinder SI100AX230S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 230mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX230S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke230 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX230S
- 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 SI100AX230S
The AirTAC SI100AX230S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 230mm stroke. Delivering 3927 N push force at 0.5 MPa through a G1/2 port, it is replaced by the SAI100AX230S. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force and port. The SAI family features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -A suffix indicates a SUS420J2 stainless piston rod for corrosion resistance, and the -S denotes a magnet for legacy CS1-B/DS1-B sensors.
The SAI line also introduces SAIL, SAIF and BSAI lock or valve variants the SI lacked. Note that a plain cylinder drifts on air loss; the air cushion only decelerates near stroke end, so use an external rod lock or pilot check valve for load holding.
Airtac SI100 Standard Cylinder SI100AX230S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX230S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX230S |
| Bore size | Ø100 mm |
| Stroke | 230 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 SAI100AX230S 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 SAI100AX230S 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 SI100AX230S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×230 | 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 SI100AX230S Is Used
Heavy-Duty Pressing
Applies 3927 N of push force at 0.5 MPa for seating bearings, forming light gauges, or assembling heavy mechanical components.
Pallet Diverting
Handles high side loads on packaging lines using the 230mm stroke to push heavy pallets or redirect products at transfer stations.
Replacing the Airtac SI100 Standard Cylinder SI100AX230S with the SAI100AX230S
To replace the discontinued SI100AX230S, order the SAI100AX230S. Verify your ISO 15552 mounting interface, 100mm bore, 230mm stroke, G1/2 port (PT/G/NPT thread options) and mounting accessory. The -S magnet works with legacy CS1-B/DS1-B switches, though the SAI replacement uses current AirTAC sensors. Sizing both ways: if force is insufficient, the neighbouring 125mm bore offers 6136 N push at 0.5 MPa; if excess force risks damage, the 80mm bore provides 2513 N. For this 230mm stroke, ensure guide alignment to prevent rod bending and side-load wear. A plain cylinder does not hold load without live air; for safety, specify an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX230S
- ✓ 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 SI100AX230S FAQ
Yes, the SI100AX230S is discontinued. The direct replacement is the AirTAC SAI100AX230S. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 230mm stroke, G1/2 port, output force and mounting interface, but features an upgraded piston seal.
The 100mm bore features a G1/2 air port and a 25mm piston rod. Force output is 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 maximum of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX230S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX230S replacement — usually within 7-8 hours.