This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X40FA, 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 SI160X40FA
The AirTAC SI160 Standard Cylinder SI160X40FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 40mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X40FA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke40 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X40FA
- 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 SI160X40FA
The AirTAC SI160X40FA is a discontinued double-acting ISO 15552 profile cylinder. It delivers 10053 N push force at 0.5 MPa through a 160 mm bore, a 40 mm stroke, and a G3/4 port. AirTAC replaced this legacy unit with the SAI160X40FA, a direct upgrade retaining the exact FA flange mounting, M36x2 thread, and dimensions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This specific SKU lacks a magnet and cannot accept a sensor. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI160 Standard Cylinder SI160X40FA Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X40FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X40FA |
| Bore size | Ø160 mm |
| Stroke | 40 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 SAI160X40FA 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 SAI160X40FA 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 SI160X40FA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×40 | 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 SI160X40FA Is Used
Heavy Press Operations
Drives substantial clamping force in automotive and heavy industry assembly lines, utilizing the full 10053 N push at 0.5 MPa for secure metal-forming presses.
Large Mold Handling
Shifts heavy injection molds and tooling into position on machining centers, benefiting from the rigid 40 mm rod and FA flange mounting for precise alignment.
Replacing the Airtac SI160 Standard Cylinder SI160X40FA with the SAI160X40FA
To replace the SI160X40FA, order the SAI160X40FA. It drops into existing fixtures via the identical ISO 15552 interface, 160 mm bore, 40 mm stroke, G3/4 port, and FA flange. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B switches. If sizing both ways, neighboring 125 mm and 200 mm bores offer different footprints; at 0.5 MPa this 160 mm bore yields 10053 N push and 9425 N pull. 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 → SAI160X40FA
- ✓ 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 SI160X40FA FAQ
Yes, the SI160X40FA is discontinued. The direct replacement is the SAI160X40FA. It shares the identical ISO 15552 mounting interface, 160 mm bore, 40 mm stroke, output force, G3/4 port, and FA flange, fitting existing fixtures perfectly.
This double-acting cylinder uses a G3/4 port. It delivers 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 SAI160X40FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X40FA replacement — usually within 7-8 hours.