This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX5S, 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 SI160AX5S
The AirTAC Airtac SI160 Standard Cylinder SI160AX5S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 5mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX5S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke5 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX5S
- 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 SI160AX5S
The AirTAC SI160AX5S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore, 5 mm stroke, and a SUS420J2 stainless steel rod. Delivering 10053 N push force at 0.5 MPa, it is replaced by the SAI160AX5S. This direct upgrade retains the exact G3/4 port, M36x2 thread, and mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The original -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL and BSAI lock variants the SI lacked.
Airtac SI160 Standard Cylinder SI160AX5S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX5S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX5S |
| Bore size | Ø160 mm |
| Stroke | 5 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 SAI160AX5S 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 SAI160AX5S 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 SI160AX5S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×5 | 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 SI160AX5S Is Used
Heavy Stamping
Short 5 mm stroke provides high-impact actuation for stamping tasks requiring 10053 N of push force.
Rugged Clamping
The SUS420J2 stainless rod handles corrosive environments while delivering 9425 N pull force for heavy clamping.
Short Thrust Ejection
Ideal for ejecting dense parts from molds using a compact 5 mm stroke and 14074 N thrust at 0.7 MPa.
Replacing the Airtac SI160 Standard Cylinder SI160AX5S with the SAI160AX5S
To replace the SI160AX5S, order the SAI160AX5S. Confirm the ISO 15552 mounting interface, 160 mm bore, 5 mm stroke, G3/4 port, and -S magnet. The -A rod denotes SUS420J2 stainless steel; verify if your application requires the Viton H seal for high temp. If sizing alternatives, neighbouring bores offer different footprints, and at 0.5 MPa this bore yields 10053 N push and 9425 N pull. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX5S
- ✓ 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 SI160AX5S FAQ
Yes, the SI160AX5S is discontinued. The direct replacement is the SAI160AX5S, which shares the same ISO 15552 mounting interface, 160 mm bore, 5 mm stroke, output force, and G3/4 port.
It features a G3/4 port. Force ratings are 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical max of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX5S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX5S replacement — usually within 7-8 hours.