This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X800FTC, 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 SI80 Standard Air Cylinder SI80X800FTC
The AirTAC SI80 Standard Air Cylinder SI80X800FTC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X800FTC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X800FTC
- 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 SI80 Standard Air Cylinder SI80X800FTC
The AirTAC SI80X800FTC is a discontinued double-acting ISO 15552 profile cylinder with an 800 mm stroke and FTC trunnion mount. It delivers 2513 N push and 2268 N pull at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X800FTC, which matches the bore, stroke, force, port and mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a magnet and cannot take a sensor.
Airtac SI80 Standard Air Cylinder SI80X800FTC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X800FTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X800FTC |
| Bore size | Ø80 mm |
| Stroke | 800 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 SAI80X800FTC carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80X800FTC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI80 Standard Air Cylinder SI80X800FTC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | 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 SI80 Standard Air Cylinder SI80X800FTC Is Used
Long-Stroke Material Transfer
Drives heavy pallets across an 800 mm gap using the 2513 N push force at 0.5 MPa, requiring external guides to prevent rod bending.
Large Fixture Positioning
Shifts heavy welding fixtures into place using the FTC trunnion mount to absorb pivotal moments during the 800 mm travel.
Replacing the Airtac SI80 Standard Air Cylinder SI80X800FTC with the SAI80X800FTC
To replace the SI80X800FTC, order the SAI80X800FTC. Verify the ISO 15552 FTC trunnion mount, 80 mm bore, 800 mm stroke and G3/8 port. Because this is an 800 mm stroke, use an external guide to prevent rod bending and side-load damage. This non-magnet SKU cannot accept a CS1-B or DS1-B sensor. If you need to drop to a 63 mm bore, force falls to 1559 N push at 0.5 MPa; stepping up to 100 mm yields 3927 N. A plain cylinder drifts on air loss, so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X800FTC
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI80 Standard Air Cylinder SI80X800FTC FAQ
Yes, the SI80X800FTC is discontinued. The direct replacement is the SAI80X800FTC. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 800 mm stroke, 2513 N force, G3/8 port and FTC trunnion mount.
The G3/8 port feeds a 25 mm rod. Forces are 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a 513 kgf max at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X800FTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X800FTC replacement — usually within 7-8 hours.