This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X30S, 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 SI100X30S
The AirTAC Airtac SI100 Standard Cylinder SI100X30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 30mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke30 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X30S
- 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 SI100X30S
The AirTAC SI100X30S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 30mm stroke. Delivering 3927N push at 0.5MPa via a G1/2 port, it is replaced by the SAI100X30S. This direct upgrade retains the exact ISO 15552 mounting interface, bore, force and accessories.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure. Options include Viton H seals for high temp, SUS304 rods, and SAIL/BSAI lock variants.
Airtac SI100 Standard Cylinder SI100X30S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X30S |
| Bore size | Ø100 mm |
| Stroke | 30 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 SAI100X30S 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 SAI100X30S 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 SI100X30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×30 | 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 SI100X30S Is Used
High-Force Clamping
Secures heavy metal castings during machining using the 3927N push force at 0.5 MPa.
Short-Stroke Pressing
Performs rapid 30mm pressing and seating operations for large industrial bearings.
Pallet Halting
Acts as a robust 100mm bore stopper for heavy-duty conveyor lines.
Replacing the Airtac SI100 Standard Cylinder SI100X30S with the SAI100X30S
To replace the SI100X30S, order the SAI100X30S. Verify the G1/2 port, M20x1.5 rod thread, and -S magnet for CS1-B/DS1-B sensors. The 30mm stroke is very short, so side-load risks are minimal. For higher force, the 125mm bore yields 6136N push at 0.5MPa. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X30S
- ✓ 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 SI100X30S FAQ
Yes, the SI100X30S is discontinued. The direct replacement is the SAI100X30S, which matches the ISO 15552 mounting interface, 100mm bore, 30mm stroke, force, and G1/2 port.
It has a 100mm bore, 25mm rod, G1/2 port, and 30-800 mm/s speed. Force ratings are 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, and a max of 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X30S replacement — usually within 7-8 hours.