This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X25FA, 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 SI160X25FA
The AirTAC Airtac SI160 Standard Cylinder SI160X25FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 25mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X25FA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke25 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X25FA
- 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 SI160X25FA
The AirTAC SI160X25FA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 25 mm stroke. Delivering 10053 N push force at 0.5 MPa via a G3/4 port, it used an FA flange mounting interface. The direct replacement is the SAI160X25FA, matching the exact bore, stroke, force, port, and ISO 15552 mounting dimensions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a magnet, so it cannot accept a sensor. For high heat, Viton H seals raise the temperature limit to 150 C.
Airtac SI160 Standard Cylinder SI160X25FA Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X25FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X25FA |
| Bore size | Ø160 mm |
| Stroke | 25 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 SAI160X25FA 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 SAI160X25FA 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 SI160X25FA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×25 | 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 SI160X25FA Is Used
Heavy Press Operations
Ideal for high-tonnage pressing and stamping tasks requiring 10053 N of push force over a short 25 mm travel distance.
Industrial Clamping
Provides robust holding power for securing large molds or heavy fabrication components during machining.
Rigid Positioning Stops
Acts as a heavy-duty end stop in automated lines, absorbing kinetic energy using the 50 mm adjustable air cushion.
Replacing the Airtac SI160 Standard Cylinder SI160X25FA with the SAI160X25FA
To replace the SI160X25FA, order the SAI160X25FA. Verify the ISO 15552 FA flange interface, 160 mm bore, 25 mm stroke, G3/4 port (PT/G/NPT thread), and carbon steel rod. Because this SKU has no -S magnet, it cannot take CS1-B/DS1-B sensors. If sizing up or down, note the 125 mm bore yields 6136 N [email protected], while the 200 mm bore yields 15708 N. This plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X25FA
- ✓ 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 SI160X25FA FAQ
Yes, the SI160X25FA is discontinued. The direct replacement is the SAI160X25FA. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 25 mm stroke, FA flange mount, G3/4 port, and 10053 N output force.
This double-acting cylinder features a G3/4 port and 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 max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X25FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X25FA replacement — usually within 7-8 hours.