This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X430S, 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 SI100X430S
The AirTAC SI100 Standard Cylinder SI100X430S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 430mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X430S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke430 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X430S
- 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 SI100X430S
The AirTAC SI100X430S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 430mm stroke, delivering 3927N push force at 0.5MPa through its G1/2 port. AirTAC replaced this legacy unit with the SAI100X430S. This direct upgrade matches the exact ISO 15552 mounting interface, bore, stroke, output force, and port size, fitting existing fixtures perfectly.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also introduces lock and valve variants the SI lacked, and the original -S magnet supports CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100X430S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X430S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X430S |
| Bore size | Ø100 mm |
| Stroke | 430 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 SAI100X430S 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 SAI100X430S 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 SI100X430S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×430 | 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 SI100X430S Is Used
Heavy-Duty Pressing
Drives large stamping and forming dies requiring up to 3927N of push force at 0.5MPa with stable 100mm bore guidance.
Pallet Diversion
Actuates heavy lane diverters and sorting gates on packaging lines, utilizing the 430mm stroke to clear wide loads.
Replacing the Airtac SI100 Standard Cylinder SI100X430S with the SAI100X430S
To replace the SI100X430S, order the SAI100X430S. Confirm the ISO 15552 mounting interface, 100mm bore, 430mm stroke, G1/2 port (PT/G/NPT thread options), and mounting accessory. The -S suffix indicates a piston magnet for CS1-B/DS1-B switches. Sizing both ways: a 125mm bore offers 6136N push at 0.5MPa, while an 80mm bore provides 2513N. A plain cylinder does not hold load on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The SAIF variant adds a built-in valve. At 430mm stroke, prevent rod bending by using an external guide to manage side loads. Rod material options include carbon steel, SUS420J2, and SUS304.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X430S
- ✓ 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 SI100X430S FAQ
Yes, the SI100X430S is discontinued. The direct replacement is the SAI100X430S. It shares the same ISO 15552 mounting interface, 100mm bore, 430mm stroke, force, and G1/2 port, fitting existing fixtures directly.
The G1/2 port bore delivers 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. The piston rod is 25mm with an M20x1.5 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X430S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X430S replacement — usually within 7-8 hours.