This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X160SN, 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 SI80X160SN
The AirTAC SI80 Standard Air Cylinder SI80X160SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X160SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X160SN
- 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 SI80X160SN
The AirTAC SI80X160SN is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, delivering 2513 N of push force at 0.5 MPa. The direct replacement is the SAI80X160SN, which preserves the 80 mm bore, 160 mm stroke, G3/8 port, and ISO 15552 mounting interface. The SAI upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. This NBR-sealed unit operates from -20 to +70 C, while a Viton H option extends heat resistance to 150 C.
Because this SKU includes a magnet, it supports legacy CS1-B/DS1-B sensors, whereas the SAI replacement family uses current AirTAC switches. The cushion only decelerates the load near stroke end; for true load holding on air loss, consider an external pilot check valve or the SAIL/BSAI lock variants.
Airtac SI80 Standard Air Cylinder SI80X160SN Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X160SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X160SN |
| Bore size | Ø80 mm |
| Stroke | 160 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 SAI80X160SN 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 SAI80X160SN 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 SI80X160SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×160 | 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 SI80X160SN Is Used
Package Diverting
Pushes heavy cartons on sorting lines using 2513 N of thrust at 0.5 MPa, with adjustable cushions handling the 160 mm travel.
Clamp Actuation
Secures workpieces during machining, requiring an external pilot check valve to maintain clamping force if air pressure drops.
Replacing the Airtac SI80 Standard Air Cylinder SI80X160SN with the SAI80X160SN
To replace the SI80X160SN, order the SAI80X160SN direct, confirming the ISO 15552 mounting interface, 80 mm bore, 160 mm stroke, G3/8 port, and NBR seals. The -S magnet accommodates CS1-B/DS1-B switches, and the SAI family introduces SAIL, SAIF, and BSAI lock/valve variants the original SI lacked. When sizing both ways, neighboring bores offer different force classes, but at 0.5 MPa this 80 mm bore yields 2513 N push and 2268 N pull. Note that a plain cylinder drifts without live air; use an external rod lock or pilot check valve for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X160SN
- ✓ 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 SI80X160SN FAQ
Yes, the SI80X160SN is discontinued. The direct replacement is the SAI80X160SN. It features the same ISO 15552 mounting interface, 80 mm bore, 160 mm stroke, output force, and G3/8 port, fitting existing fixtures perfectly.
The G3/8 port bore delivers a push force of 2513 N and pull of 2268 N at 0.5 MPa. At 0.7 MPa push is 3518 N, and the theoretical maximum is 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X160SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X160SN replacement — usually within 7-8 hours.