This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X145TC, 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 SI80X145TC
The AirTAC SI80 Standard Air Cylinder SI80X145TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 145mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X145TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke145 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X145TC
- 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 SI80X145TC
The AirTAC SI80X145TC is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 145mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa via a G3/8 port. The direct replacement is the SAI80X145TC, which shares 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. For load holding, note the air cushion only decelerates; use the SAIL lock or BSAI clamp-lock variant. This no-magnet SKU cannot take a sensor, unlike the CS1-B/DS1-B compatible -S versions.
Airtac SI80 Standard Air Cylinder SI80X145TC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X145TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X145TC |
| Bore size | Ø80 mm |
| Stroke | 145 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 SAI80X145TC 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 SAI80X145TC 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 SI80X145TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×145 | 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 SI80X145TC Is Used
Pallet Diversion
Actuates TC-mounted diverter arms on packaging lines to route heavy pallets using the 2513N push force at 0.5MPa.
Press Ejection
Ejects formed metal components from stamping presses, utilizing the 145mm stroke and adjustable 36mm air cushions for smooth end-of-travel deceleration.
Replacing the Airtac SI80 Standard Air Cylinder SI80X145TC with the SAI80X145TC
To replace the SI80X145TC, order the SAI80X145TC to retain the ISO 15552 TC trunnion interface, 80mm bore, 145mm stroke, and G3/8 port. Because this SKU lacks the -S magnet, it cannot accept position sensors; if sensing is needed, switch to an SAI80X145TCS and use current AirTAC switches. For sizing alternatives, a 63mm bore yields 1559N push at 0.5MPa, while a 100mm bore offers 3927N. For load holding on air loss, add an external pilot check valve or choose the SAIL/BSAI lock variants, as standard cushions only decelerate.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X145TC
- ✓ 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 SI80X145TC FAQ
Yes, the SI80X145TC is discontinued. The direct replacement is the SAI80X145TC. It is dimensionally interchangeable per ISO 15552, retaining the same 80mm bore, 145mm stroke, G3/8 port, TC trunnion mount, and 2513N force. You simply order the SAI model.
The 80mm bore uses a G3/8 port. It generates 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N at 0.9MPa, and a theoretical max of 513kgf at 1.0MPa. Speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X145TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X145TC replacement — usually within 7-8 hours.