This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X150FA, 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 SI100X150FA
The AirTAC Airtac SI100 Standard Cylinder SI100X150FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 150mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X150FA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke150 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X150FA
- 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 SI100X150FA
The AirTAC SI100X150FA is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 150 mm stroke. It delivers 3927 N push force at 0.5 MPa via a G1/2 port. AirTAC replaced this legacy unit with the SAI100X150FA, a direct upgrade retaining the exact FA flange mounting, M20x1.5 rod thread, and output force.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100X150FA Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X150FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X150FA |
| Bore size | Ø100 mm |
| Stroke | 150 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 SAI100X150FA 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 SAI100X150FA 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 SI100X150FA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×150 | 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 SI100X150FA Is Used
Heavy-Duty Pressing
Applies 5497 N of thrust at 0.7 MPa for seating bearings, stamping light components, or clinching sheet metal assemblies.
Pallet Diverting
Handles robust diverting or stopping tasks on heavy material handling lines using the FA flange mount for rigid fixture attachment.
Replacing the Airtac SI100 Standard Cylinder SI100X150FA with the SAI100X150FA
To replace the SI100X150FA, order the SAI100X150FA. Confirm the ISO 15552 FA flange interface, 100 mm bore, 150 mm stroke, G1/2 port, and M20x1.5 thread. Because this SKU lacks the -S magnet, it cannot support position sensing; if detection is needed, select an SAI100X150FAS instead. Sizing both ways: the 100 mm bore yields 5497 N at 0.7 MPa, while an 80 mm bore at 0.9 MPa yields 4523 N. For load holding on air loss, note that a plain cylinder drifts and the air cushion only decelerates; use an external pilot check valve or the SAIL/BSAI lock variants. Stroke is under 300 mm, so rod bending side-load risks are minimal.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X150FA
- ✓ 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 SI100X150FA FAQ
Yes, the SI100X150FA is discontinued. The direct replacement is the SAI100X150FA. It shares the identical ISO 15552 mounting interface, 100 mm bore, 150 mm stroke, G1/2 port, and FA flange, fitting your existing fixtures perfectly.
The G1/2 port feeds a 25 mm rod yielding 3927 N push and 3681 N pull at 0.5 MPa. At 0.7 MPa push is 5497 N, and 7068 N at 0.9 MPa. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X150FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X150FA replacement — usually within 7-8 hours.