This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X80SN, 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 SI160 Standard Cylinder SI160X80SN
The AirTAC SI160 Standard Cylinder SI160X80SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X80SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X80SN
- 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 SI160 Standard Cylinder SI160X80SN
The AirTAC SI160X80SN is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 80 mm stroke. Delivering 10053 N push force at 0.5 MPa with a G3/4 air port, it is replaced by the direct replacement SAI160X80SN. This successor maintains the exact ISO 15552 mounting interface, bore, stroke, output force, and port size, fitting existing fixtures perfectly.
The SAI upgrade introduces a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Your SI160X80SN includes a magnetic piston (-S) for legacy CS1-B/DS1-B sensors and an NBR seal (-N) rated for -20 to +70 C. Note that a plain cylinder drifts without live air; for load holding, consider the SAIL lock or BSAI clamp-lock variants.
Airtac SI160 Standard Cylinder SI160X80SN Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X80SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X80SN |
| Bore size | Ø160 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI160X80SN carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160X80SN produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160X80SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×80 | 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 SI160 Standard Cylinder SI160X80SN Is Used
Heavy Press Operations
Drives large forming and stamping presses requiring 10053 N of push force at 0.5 MPa, utilizing the 80 mm stroke for rapid high-tonnage cycles.
Large Mold Clamping
Secures heavy industrial molds and fixtures on production lines, relying on the 160 mm bore and G3/4 port for massive pneumatic clamping.
Replacing the Airtac SI160 Standard Cylinder SI160X80SN with the SAI160X80SN
To replace the SI160X80SN, order the SAI160X80SN direct equivalent, confirming the ISO 15552 mounting interface, 160 mm bore, 80 mm stroke, G3/4 port, and your specific mounting accessory. The -S magnet enables CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches. Sizing both ways: a 200 mm bore offers 15708 N push at 0.5 MPa, whereas a 125 mm bore provides 6136 N. Remember, a standard cylinder does not hold load on air loss—the cushion only decelerates. For secure holding, use an external rod lock, pilot check valve, or the SAIL/BSAI variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X80SN
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160X80SN FAQ
Yes, the SI160X80SN is discontinued. The direct replacement is the SAI160X80SN. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 80 mm stroke, 10053 N force, G3/4 port, and mounting interface.
This 160 mm bore cylinder features a G3/4 air port and an M36x2 rod thread. Force output is 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X80SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X80SN replacement — usually within 7-8 hours.