This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X20FA, 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 SI160X20FA
The AirTAC SI160 Standard Cylinder SI160X20FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 20mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X20FA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke20 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X20FA
- 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 SI160X20FA
The AirTAC SI160X20FA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 20 mm stroke, delivering 10053 N push force at 0.5 MPa via a G3/4 port. Because this legacy unit is end-of-life, you should order the SAI160X20FA direct replacement. It shares the exact ISO 15552 mounting interface, M36x2 rod thread, and FA flange accessory, fitting your existing fixtures perfectly.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. For high-temperature environments up to 150 C, Viton H seals are available. Note this SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160X20FA Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X20FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X20FA |
| Bore size | Ø160 mm |
| Stroke | 20 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 SAI160X20FA 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 SAI160X20FA 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 SI160X20FA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×20 | 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 SI160X20FA Is Used
Heavy Press Operations
Drives high-tonnage stamping and forming presses where the 18095 N push force at 0.9 MPa ensures rigid actuation.
Mold Clamping Stations
Secures heavy industrial molds via the FA flange mount, utilizing the 512 kg vertical lift capacity for robust holding.
Industrial Forging Hammers
Delivers rapid 30-500 mm/s striking force in automated forging lines, relying on the 50 mm cushion for end-of-stroke deceleration.
Replacing the Airtac SI160 Standard Cylinder SI160X20FA with the SAI160X20FA
To replace the SI160X20FA, order the SAI160X20FA, confirming the ISO 15552 FA flange mount, 160 mm bore, 20 mm stroke, and G3/4 port. If downsizing, a 125 mm bore yields 6136 N at 0.5 MPa; if upsizing, a 200 mm bore provides 15708 N. This plain cylinder cannot hold a load without live air—the 50 mm adjustable cushion only decelerates. For load holding on air loss, use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants. The SAI family also adds the SAIF self-valve option. Operating speed is 30-500 mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X20FA
- ✓ 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 SI160X20FA FAQ
Yes, the SI160X20FA is discontinued. The direct replacement is the SAI160X20FA. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 20 mm stroke, FA flange mount, and G3/4 port. The SAI features an upgraded piston seal for lower start-up pressure.
The bore is 160 mm with a G3/4 air port. 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 max of 2050 kgf at 1.0 MPa. The piston rod is 40 mm with an M36x2 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X20FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X20FA replacement — usually within 7-8 hours.