This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X100FTC, 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 SI80X100FTC
The AirTAC SI80 Standard Air Cylinder SI80X100FTC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X100FTC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X100FTC
- 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 SI80X100FTC
The AirTAC SI80X100FTC is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, delivering 2513 N push force at 0.5 MPa through its 80 mm bore. Because this legacy unit is end-of-life, you should order the direct replacement: the SAI80X100FTC. It maintains the same FTC trunnion mount, G3/8 port, and 100 mm stroke, dropping directly into existing fixtures.
The SAI upgrade features a redesigned piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. Note that this specific SKU lacks a magnet (-S), meaning it cannot accept CS1-B or DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80X100FTC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X100FTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X100FTC |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAI80X100FTC 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 SAI80X100FTC 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 SI80X100FTC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | 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 SI80 Standard Air Cylinder SI80X100FTC Is Used
Pallet Diversion
Actuates heavy lane diverters on packaging lines, using the 2513 N thrust to push loaded pallets smoothly onto secondary conveyors.
Clamp Actuation
Provides reliable clamping force for machining fixtures, holding large cast components firmly in place during milling operations.
Replacing the Airtac SI80 Standard Air Cylinder SI80X100FTC with the SAI80X100FTC
To replace the discontinued SI80X100FTC, order the SAI80X100FTC, verifying the ISO 15552 FTC trunnion interface, 80 mm bore, 100 mm stroke, and G3/8 port. If you need position sensing, select an SAI80X100FTCS with a magnet, as this legacy SKU cannot hold a switch. Sizing both ways: the 80 mm bore yields 2513 N push at 0.5 MPa, while the neighboring 63 mm bore offers 1559 N. Remember that a plain cylinder drifts on air loss; the air cushion only decelerates near stroke end. For load holding, use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X100FTC
- ✓ 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 SI80X100FTC FAQ
Yes, the AirTAC SI80X100FTC is discontinued. The direct replacement is the SAI80X100FTC. It is dimensionally interchangeable per ISO 15552, retaining the exact same 80 mm bore, 100 mm stroke, G3/8 port, and FTC trunnion mounting interface.
The 80 mm bore features a G3/8 air port and delivers 2513 N push / 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical maximum force of 513 kgf at 1.0 MPa. It operates at speeds of 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X100FTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X100FTC replacement — usually within 7-8 hours.