This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X460S, 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 SI100X460S
The AirTAC SI100 Standard Cylinder SI100X460S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 460mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X460S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke460 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X460S
- 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 SI100X460S
The AirTAC SI100X460S is a discontinued double-acting ISO 15552 profile cylinder. It delivers 3927 N push and 3681 N pull at 0.5 MPa, operating through a 460 mm stroke with a G1/2 port. As an end-of-line product, it is replaced by the SAI100X460S.
The SAI100X460S is a direct replacement, matching the exact ISO 15552 mounting interface, bore, and force. It upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked. This -S model has a piston magnet for CS1-B/DS1-B sensors; the SAI uses current AirTAC switches.
Airtac SI100 Standard Cylinder SI100X460S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X460S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X460S |
| Bore size | Ø100 mm |
| Stroke | 460 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 SAI100X460S 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 SAI100X460S 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 SI100X460S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×460 | 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 SI100X460S Is Used
Heavy Press Clamping
Provides 3927 N of clamping force at 0.5 MPa to secure heavy metal components during machining or welding operations.
Pallet Diversion
Uses the 460 mm stroke to push heavy loaded pallets cleanly across transfer lines without requiring multiple stages.
Material Lift Gates
Actuates large loading dock gates or heavy safety barriers, taking advantage of the 200 kg vertical lift capacity.
Replacing the Airtac SI100 Standard Cylinder SI100X460S with the SAI100X460S
To replace the SI100X460S, order the SAI100X460S. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the 460 mm stroke, the G1/2 port, and the -S magnet. The SAI drops into existing fixtures without changes. When sizing, a 100 mm bore gives 3927 N push at 0.5 MPa; if you need less force, an 80 mm bore provides 2513 N. For higher force, a 125 mm bore yields 6136 N. Because this is a 460 mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder does not hold load on air loss—the cushion only decelerates. For load holding, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variant. The SAIF variant integrates a 4M valve if needed.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X460S
- ✓ 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 SI100X460S FAQ
Yes, the SI100X460S is discontinued. The direct replacement is the AirTAC SAI100X460S. It is dimensionally interchangeable per ISO 15552, matching the 100 mm bore, 460 mm stroke, output force, G1/2 port, and mounting accessories.
It features a G1/2 port and generates 3927 N push / 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 force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X460S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X460S replacement — usually within 7-8 hours.