This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X80FTC, 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 SI100X80FTC
The AirTAC Airtac SI100 Standard Cylinder SI100X80FTC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X80FTC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X80FTC
- 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 SI100X80FTC
The AirTAC SI100X80FTC is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke, delivering a push force of 3927 N at 0.5 MPa. It features a G1/2 port and an FTC trunnion mount. Because this legacy SI unit is end-of-life, you should order the SAI100X80FTC as the direct replacement. It shares the same ISO 15552 mounting interface, bore, stroke, force, and port size, dropping cleanly into existing fixtures.
The SAI upgrade introduces a refined piston seal with two Y-shaped one-way elements for longer life and lower start-up pressure. Note that this specific SKU lacks a magnet, so it cannot accept a CS1-B/DS1-B sensor. If you need load holding on air loss, explore the SAIL or BSAI lock variants, as standard cushions only decelerate.
Airtac SI100 Standard Cylinder SI100X80FTC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X80FTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X80FTC |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAI100X80FTC 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 SAI100X80FTC 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 SI100X80FTC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SI100X80FTC Is Used
Heavy Press Operations
Drives robust clamping and pressing jigs requiring up to 3927 N of thrust at 0.5 MPa, utilizing the short 80 mm stroke for rapid, high-force cycling.
Pallet Diversion
Actuates heavy-duty routing gates or stops on automated conveyors, where the FTC trunnion mount handles mid-stroke lateral stresses effectively.
Replacing the Airtac SI100 Standard Cylinder SI100X80FTC with the SAI100X80FTC
To replace the discontinued SI100X80FTC, order the SAI100X80FTC. Verify your ISO 15552 FTC trunnion mounting, 100 mm bore, 80 mm stroke, and G1/2 port (available in PT, G, or NPT). This SKU has no magnet, so it cannot support position sensing; if you require switches, select an SAI model with the S suffix. Sizing both ways: the 100 mm bore yields 3927 N push at 0.5 MPa, while the neighbouring 80 mm bore provides 2513 N. A plain cylinder drifts on air loss—cushions only decelerate—so use an external rod lock or pilot check valve for held loads. The SAI family also offers the SAIF self-valve and SAIL lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X80FTC
- ✓ 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 SI100X80FTC FAQ
Yes, the AirTAC SI100X80FTC is discontinued. The direct replacement is the SAI100X80FTC. It is dimensionally interchangeable per ISO 15552, retaining the same FTC trunnion mount, 100 mm bore, 80 mm stroke, 3927 N force, and G1/2 port.
This 100 mm bore cylinder features a G1/2 port and delivers a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. At 0.7 MPa it pushes 5497 N, and at 0.9 MPa it pushes 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X80FTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X80FTC replacement — usually within 7-8 hours.