This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X220STC, 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 SI80X220STC
The AirTAC SI80 Standard Air Cylinder SI80X220STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 220mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X220STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke220 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X220STC
- 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 SI80X220STC
The AirTAC SI80X220STC is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore, 220mm stroke, and a TC trunnion mount. Delivering 2513 N push force at 0.5 MPa, it features a 25mm rod, M20x1.5 thread, and G3/8 port. The direct replacement is the SAI80X220STC, which matches the exact ISO 15552 mounting interface, output force, and dimensions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked. Your existing CS1-B/DS1-B sensors will fit the -S magnet, though SAI uses current AirTAC switches.
Airtac SI80 Standard Air Cylinder SI80X220STC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X220STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X220STC |
| Bore size | Ø80 mm |
| Stroke | 220 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 SAI80X220STC 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 SAI80X220STC 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 SI80X220STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×220 | 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 SI80X220STC Is Used
Pallet Diversion
Handles heavy pallet routing on packaging lines using the 2513 N push force and TC trunnion mount to absorb mid-stroke side loads.
Press Ejection
Ejects formed metal parts from press beds, utilizing the 36mm adjustable air cushions to decelerate the rod at stroke end.
Replacing the Airtac SI80 Standard Air Cylinder SI80X220STC with the SAI80X220STC
To replace the SI80X220STC, order the SAI80X220STC. Verify the ISO 15552 TC trunnion mount, G3/8 port, 220mm stroke, and the -S magnet. If downsizing, a 63mm bore yields 1559 N push at 0.5 MPa; if upsizing, a 100mm bore yields 3927 N. Because this is a 220mm stroke, ensure your guiding handles side loads to prevent rod bending. A plain cylinder drifts on air loss—the cushion only decelerates—so use a pilot check valve or the SAIL/BSAI lock variant for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X220STC
- ✓ 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 SI80X220STC FAQ
Yes, the SI80X220STC is discontinued. The direct replacement is the SAI80X220STC, a current-production ISO 15552 cylinder that matches the 80mm bore, 220mm stroke, G3/8 port, TC mount, and output force.
It has a G3/8 port. The force ratings are: 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X220STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X220STC replacement — usually within 7-8 hours.