This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X50FA, 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 SI160X50FA
The AirTAC Airtac SI160 Standard Cylinder SI160X50FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 50mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X50FA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke50 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X50FA
- 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 SI160X50FA
The AirTAC SI160X50FA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 50 mm stroke. Delivering 10053 N push force at 0.5 MPa via a G3/4 port, it is directly replaced by the SAI160X50FA direct equivalent.
The SAI upgrade features an improved piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also introduces SAIL, SAIF, and BSAI variants the SI lacked. Note this SKU lacks a magnet and cannot take a sensor.
Airtac SI160 Standard Cylinder SI160X50FA Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X50FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X50FA |
| Bore size | Ø160 mm |
| Stroke | 50 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 SAI160X50FA 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 SAI160X50FA 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 SI160X50FA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×50 | 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 SI160X50FA Is Used
Heavy Press Clamping
Generates 10053 N of thrust at 0.5 MPa to secure heavy steel plates during machining or welding operations.
Industrial Stamping
Short 50 mm stroke delivers rapid, high-impact force for forming and stamping thick metal components.
Replacing the Airtac SI160 Standard Cylinder SI160X50FA with the SAI160X50FA
To replace this SI160X50FA, order the SAI160X50FA keeping the exact 160 mm bore, 50 mm stroke, G3/4 port, M36x2 rod thread, and FA flange mounting. The ISO 15552 interface ensures a direct fit. If you need less force, the neighboring 125 mm bore offers 6136 N push at 0.5 MPa; for more power, the 200 mm bore provides 15708 N. This non-magnet SKU cannot accept a CS1-B or DS1-B sensor. Because a plain cylinder drifts on air loss and the 50 mm cushion only decelerates, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X50FA
- ✓ 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 SI160X50FA FAQ
Yes, the SI160X50FA is discontinued. The direct replacement is the SAI160X50FA, which shares the same ISO 15552 mounting interface, 160 mm bore, 50 mm stroke, force, G3/4 port, and FA flange.
It features a G3/4 port and provides 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X50FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X50FA replacement — usually within 7-8 hours.