This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X175TC, 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 SI80X175TC
The AirTAC SI80 Standard Air Cylinder SI80X175TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 175mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X175TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X175TC
- 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 SI80X175TC
The AirTAC SI80X175TC is a discontinued double-acting ISO 15552 profile cylinder featuring an extruded aluminum barrel and a TC trunnion mount. Delivering 2513 N push force at 0.5 MPa through its G3/8 port, it is replaced by the SAI80X175TC. This direct upgrade shares the exact ISO 15552 mounting interface, 175 mm stroke, and M20x1.5 rod thread.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this non-magnetic SKU cannot accept a sensor; the SAI family also adds SAIL lock and BSAI clamp-lock variants absent in the SI line.
Airtac SI80 Standard Air Cylinder SI80X175TC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X175TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X175TC |
| Bore size | Ø80 mm |
| Stroke | 175 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 SAI80X175TC 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 SAI80X175TC 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 SI80X175TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×175 | 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 SI80X175TC Is Used
Pallet Diversion
Actuates diverter arms on packaging lines to route heavy pallets using the 2513 N push force at 0.5 MPa.
Clamp Actuation
Secures large steel plates in machining fixtures, utilizing the TC trunnion mount to handle angular alignment.
Replacing the Airtac SI80 Standard Air Cylinder SI80X175TC with the SAI80X175TC
To replace the SI80X175TC, order the SAI80X175TC keeping the TC trunnion mount, 80 mm bore, 175 mm stroke, and G3/8 port. Confirm your thread standard (PT, G, or NPT). Because this SKU lacks the -S magnet, it cannot support position sensing; if required, switch to a magnet-equipped SAI model using current AirTAC switches. Sizing both ways: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. With a 175 mm stroke, standard guide rails should be used to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X175TC
- ✓ 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 SI80X175TC FAQ
Yes, the AirTAC SI80X175TC is discontinued. The direct replacement is the SAI80X175TC. It shares the same ISO 15552 mounting interface, 80 mm bore, 175 mm stroke, output force, G3/8 port, and TC trunnion mount, fitting existing fixtures perfectly.
This double-acting 80 mm bore cylinder uses a G3/8 air port. It generates 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 maximum force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X175TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X175TC replacement — usually within 7-8 hours.