This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X320TC, 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 SI80X320TC
The AirTAC SI80 Standard Air Cylinder SI80X320TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 320mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X320TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke320 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X320TC
- 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 SI80X320TC
The AirTAC SI80X320TC is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 320 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X320TC, retaining the exact TC trunnion mount, M20x1.5 rod thread, and output force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks the -S magnet, so it cannot accept CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80X320TC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X320TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X320TC |
| Bore size | Ø80 mm |
| Stroke | 320 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 SAI80X320TC 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 SAI80X320TC 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 SI80X320TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×320 | 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 SI80X320TC Is Used
Pallet Diversion
Shifts heavy pallets laterally across transport lines using the 2513 N push force and 320 mm travel distance.
Vertical Lift Gate
Raises and lowers loading bay gates, safely managing the 128 kg vertical lift capacity calculated at 0.5 MPa.
Press Ejection
Ejects formed metal components from press beds, relying on adjustable 36 mm air cushions to absorb impact.
Replacing the Airtac SI80 Standard Air Cylinder SI80X320TC with the SAI80X320TC
To replace the SI80X320TC, order the SAI80X320TC. Confirm the ISO 15552 TC trunnion interface, 80 mm bore, 320 mm stroke, G3/8 port (PT/G/NPT), and M20x1.5 thread. Since this SKU has no -S magnet, it cannot host position sensors; order a magnet-equipped SAI if needed. Sizing both ways: a 63 mm bore yields 1559 N [email protected], while a 100 mm bore yields 3927 N. At 320 mm stroke, use external guides to prevent rod bending and side-load wear. The air cushion only decelerates; for load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X320TC
- ✓ 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 SI80X320TC FAQ
Yes, the SI80X320TC is discontinued. The direct replacement is the SAI80X320TC. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 320 mm stroke, G3/8 port, TC trunnion mount, and output force.
It features a G3/8 air port. Force output is 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 theoretical max of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X320TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X320TC replacement — usually within 7-8 hours.