This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X800FTC, 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 SI100X800FTC
The AirTAC Airtac SI100 Standard Cylinder SI100X800FTC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 800mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X800FTC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke800 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X800FTC
- 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 SI100X800FTC
The AirTAC SI100X800FTC is a discontinued double-acting ISO 15552 profile cylinder with an 800 mm stroke and FTC trunnion mount. Delivering 3927 N push force at 0.5 MPa, it is replaced by the SAI100X800FTC. This direct upgrade keeps the G1/2 port, M20x1.5 thread, and 36 mm cushions identical.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure. Without a -S magnet, this SKU cannot take a sensor. For high heat, Viton H seals raise the temperature limit to 150 C.
Airtac SI100 Standard Cylinder SI100X800FTC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X800FTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X800FTC |
| Bore size | Ø100 mm |
| Stroke | 800 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 SAI100X800FTC 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 SAI100X800FTC 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 SI100X800FTC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×800 | 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 SI100X800FTC Is Used
Long-Stroke Material Transfer
Pushes heavy pallets along a 800 mm conveyor section using 3927 N of thrust at 0.5 MPa, relying on the adjustable 36 mm cushions to decelerate the payload smoothly.
Vertical Press Lowering
Lowers a 200 kg assembly fixture along an 800 mm vertical path, requiring external guidance to prevent rod bending and a pilot check valve to hold the load safely.
Replacing the Airtac SI100 Standard Cylinder SI100X800FTC with the SAI100X800FTC
To replace the SI100X800FTC, order the SAI100X800FTC. It drops into existing fixtures via the same ISO 15552 FTC trunnion interface, 100 mm bore, 800 mm stroke, and G1/2 port. If downsizing, a 80 mm bore yields 2513 N push at 0.5 MPa; if upsizing, a 125 mm bore yields 6136 N. Note this non-magnetic SKU cannot accept CS1-B/DS1-B switches. Because the 800 mm stroke is long, use an external guide to prevent rod bending and side-load wear. The air cushion only decelerates the piston; it does not hold the load on air loss. For load holding, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X800FTC
- ✓ 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 SI100X800FTC FAQ
Yes, the SI100X800FTC is discontinued. The direct replacement is the SAI100X800FTC. It shares the exact same ISO 15552 FTC mounting interface, 100 mm bore, 800 mm stroke, G1/2 port, and output force, fitting existing fixtures perfectly.
The bore is 100 mm with a G1/2 air port and M20x1.5 rod thread. Force output is 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 of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X800FTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X800FTC replacement — usually within 7-8 hours.