This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1000SFB, 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 SI100X1000SFB
The AirTAC Airtac SI100 Standard Cylinder SI100X1000SFB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1000mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1000SFB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1000 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X1000SFB
- 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 SI100X1000SFB
The AirTAC SI100X1000SFB is a discontinued double-acting ISO 15552 profile cylinder featuring an extruded aluminum barrel and an FB flange mounting interface. Delivering 3927 N push force at 0.5 MPa through a G1/2 port, its direct replacement is the SAI100X1000SFB. The SAI upgrade retains identical bore, stroke, and mounting dimensions but utilizes an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life.
The original SI-S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family uses current AirTAC switches. Furthermore, the SAI line introduces SAIL, SAIF, and BSAI lock or valve variants that the legacy SI series lacked.
Airtac SI100 Standard Cylinder SI100X1000SFB Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1000SFB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1000SFB |
| Bore size | Ø100 mm |
| Stroke | 1000 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 SAI100X1000SFB 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 SAI100X1000SFB 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 SI100X1000SFB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1000 | 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 SI100X1000SFB Is Used
Long-Stroke Material Transfer
Pushes heavy pallets or workpieces across a 1000mm span between machining stations, utilizing the 3927 N push force at 0.5 MPa to overcome friction.
Vertical Lift Gates
Raises vertical access doors or heavy material bins up to 200 kg, relying on the FB flange mount to secure the ISO 15552 body against gravitational side-loading.
Large Fixture Actuation
Actuates oversized clamping fixtures or press beds where a 100mm bore and 7068 N output at 0.9 MPa are required to secure large components during processing.
Replacing the Airtac SI100 Standard Cylinder SI100X1000SFB with the SAI100X1000SFB
To replace the SI100X1000SFB, order the SAI100X1000SFB direct equivalent, confirming the ISO 15552 interface, 100mm bore, 1000mm stroke, G1/2 port, FB flange mount, and the -S magnet. If downsizing, a 80mm bore yields 2513 N push at 0.5 MPa; if upsizing, a 125mm bore provides 6136 N. Note that a plain cylinder drifts without live air, as the cushion only decelerates—for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. Because this is a 1000mm stroke, prevent rod bending by guiding the load externally to avoid side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1000SFB
- ✓ 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 SI100X1000SFB FAQ
Yes, the SI100X1000SFB is discontinued. The direct replacement is the SAI100X1000SFB. It is dimensionally interchangeable per ISO 15552, keeping the same 100mm bore, 1000mm stroke, G1/2 port, FB flange, and output force, so it fits existing fixtures directly.
The G1/2 port is fixed by the 100mm bore. It delivers 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 maximum force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X1000SFB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1000SFB replacement — usually within 7-8 hours.