This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X100FTC, 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 SI100X100FTC
The AirTAC Airtac SI100 Standard Cylinder SI100X100FTC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X100FTC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X100FTC
- 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 SI100X100FTC
The AirTAC SI100X100FTC is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel and adjustable air cushions at both ends. It delivers 3927 N push and 3681 N pull force at 0.5 MPa, utilizing a G1/2 port and an FTC trunnion mounting interface. This specific SKU lacks a magnet and therefore cannot accept position sensors.
You must replace it with the direct replacement SAI100X100FTC. It shares the exact ISO 15552 mounting dimensions, 100 mm bore, 100 mm stroke, force, and port size. The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent from the SI line.
Airtac SI100 Standard Cylinder SI100X100FTC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X100FTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X100FTC |
| Bore size | Ø100 mm |
| Stroke | 100 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 SAI100X100FTC 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 SAI100X100FTC 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 SI100X100FTC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×100 | 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 SI100X100FTC Is Used
Heavy-Duty Pressing
Drives robust pressing and stamping operations, delivering 5497 N of push force at 0.7 MPa to seat bearings and form components reliably.
Pallet Diversion
Actuates heavy pallet diverters and lifting stops on assembly lines, utilizing the 100 mm bore and FTC trunnion mount to handle high side loads.
Replacing the Airtac SI100 Standard Cylinder SI100X100FTC with the SAI100X100FTC
To replace the SI100X100FTC, order the SAI100X100FTC. Verify your ISO 15552 FTC trunnion mounting hardware, the G1/2 pneumatic porting, and the M20x1.5 rod thread. Because this non-magnet SKU cannot host CS1-B or DS1-B switches, confirm if your fixture requires sensing. For sizing alternatives, the neighboring 80 mm bore yields 2513 N push at 0.5 MPa, while stepping up to 125 mm provides 6136 N. Remember that a standard cylinder drifts without live air; the cushion only decelerates at stroke end. For load holding on air loss, specify an external pilot check valve, a rod lock, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X100FTC
- ✓ 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 SI100X100FTC FAQ
Yes, the SI100X100FTC is discontinued. The direct replacement is the SAI100X100FTC. It is dimensionally interchangeable per ISO 15552, retaining the exact same 100 mm bore, 100 mm stroke, 3927 N force, G1/2 port, and FTC trunnion mounting interface.
This double-acting cylinder uses a G1/2 port. It generates 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 SAI100X100FTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X100FTC replacement — usually within 7-8 hours.