This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X30FA, 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 SI100X30FA
The AirTAC Airtac SI100 Standard Cylinder SI100X30FA 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 SAI100X30FA, 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 → SAI100X30FA
- 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 SI100X30FA
The AirTAC SI100X30FA is a discontinued double-acting ISO 15552 profile cylinder with an FA flange mount. Delivering 3927 N push force at 0.5 MPa through a G1/2 port, it is replaced by the SAI100X30FA. This direct successor matches the 100 mm bore, 30 mm stroke, and ISO 15552 mounting interface exactly. The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life.
This specific SKU lacks the -S magnet, so it cannot accept legacy CS1-B or DS1-B sensors. The SAI family also introduces SAIL, SAIF, and BSAI variants for locking and integrated valves that the SI lacked. You can specify Viton H seals for high-temperature environments up to 150 C, or choose SUS420J2 or SUS304 rod materials. Remember that a standard cylinder only decelerates via its 36 mm adjustable cushion; it will not hold a load without air.
Airtac SI100 Standard Cylinder SI100X30FA Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X30FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X30FA |
| 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 SAI100X30FA 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 SAI100X30FA 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 SI100X30FA
| 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 SI100X30FA Is Used
High-Force Clamping
Secures heavy steel fabrications in machining fixtures using the 3927 N push force at 0.5 MPa with the FA flange mount.
Pallet Diverter
Short 30 mm stroke pushes heavy pallets onto secondary packaging lines without requiring excessive retraction space.
Load Ejection
Ejects dense finished goods from press beds, safely moving loads up to 2356 N using standard 0.5 MPa plant air.
Replacing the Airtac SI100 Standard Cylinder SI100X30FA with the SAI100X30FA
To replace the discontinued SI100X30FA, order the SAI100X30FA. It is a direct per the ISO 15552 mounting interface, keeping the same FA flange, 100 mm bore, 30 mm stroke, M20x1.5 rod thread, and G1/2 port. Because this SKU has no -S suffix, it cannot support position sensing; if you need switches, select an SAI model with the magnet option and current AirTAC sensors. For sizing, the 100 mm bore yields 3927 N push and 3681 N pull at 0.5 MPa. If you need less force, the neighboring 80 mm bore provides 2513 N push; if you need more, the 125 mm bore offers 6136 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve, a rod lock, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X30FA
- ✓ 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 SI100X30FA FAQ
Yes, the AirTAC SI100X30FA is discontinued. The direct replacement is the SAI100X30FA. It matches the ISO 15552 mounting interface, 100 mm bore, 30 mm stroke, output force, G1/2 port, and FA flange, fitting existing fixtures perfectly.
It features a G1/2 port and provides 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 max of 801 kgf at 1.0 MPa. It operates at 30-800 mm/s with a 36 mm adjustable cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X30FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X30FA replacement — usually within 7-8 hours.