This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X175N, 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 SI80X175N
The AirTAC SI80 Standard Air Cylinder SI80X175N 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 SAI80X175N, 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 → SAI80X175N
- 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 SI80X175N
The AirTAC SI80X175N is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 175 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X175N, which matches the bore, stroke, force, port and ISO 15552 mounting interface exactly.
The SAI upgrade features a revised piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. This NBR-sealed (-N) unit operates from -20 to +70 C and lacks a magnet, so it cannot accept a CS1-B/DS1-B sensor.
Airtac SI80 Standard Air Cylinder SI80X175N Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X175N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X175N |
| 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 SAI80X175N 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 SAI80X175N 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 SI80X175N
| 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 SI80X175N Is Used
Pallet Diversion
Pushes heavy pallets sideways off a main conveyor line using 2513 N of thrust at 0.5 MPa.
Stack Discharge
Ejects completed cardboard stacks from a strapping machine with a 175 mm stroke.
Press Ejection
Kicks formed metal parts out of a hydraulic press bed using a robust 80 mm bore.
Replacing the Airtac SI80 Standard Air Cylinder SI80X175N with the SAI80X175N
To replace the SI80X175N, order the SAI80X175N. Confirm the ISO 15552 mounting interface (LB, FA, TC, etc.), the G3/8 port, and the 175 mm stroke. If sizing up or down, note the 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. This non-magnetic SKU cannot hold a load without live air; the 36 mm cushions only decelerate. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant. At 175 mm stroke, side-load is minimal, but always guide the rod to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X175N
- ✓ 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 SI80X175N FAQ
Yes, the SI80X175N is discontinued. The direct replacement is the SAI80X175N. It shares the identical ISO 15552 mounting interface, 80 mm bore, 175 mm stroke, output force, and G3/8 port, fitting existing fixtures perfectly.
It uses a G3/8 port. The thrust 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 SAI80X175N
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X175N replacement — usually within 7-8 hours.