This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X365SN, 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 SI160X365SN
The AirTAC SI160 Standard Cylinder SI160X365SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 365mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X365SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke365 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X365SN
- 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 SI160X365SN
The AirTAC SI160X365SN is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 365 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160X365SN, matching the interface, bore, stroke, force and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The NBR seal handles -20 to +70 C, while Viton H extends this to 150 C. The SAI family also adds SAIL and BSAI lock variants absent in the SI line.
Airtac SI160 Standard Cylinder SI160X365SN Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X365SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X365SN |
| Bore size | Ø160 mm |
| Stroke | 365 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 SAI160X365SN 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 SAI160X365SN 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 SI160X365SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×365 | 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 SI160X365SN Is Used
Heavy Machinery Forming
Drives large platens in metal bending or forming presses where the 14074 N push at 0.7 MPa is required to shape thick stock.
Automated Clamp Actuation
Secures oversized castings or weldments in machining cells, utilizing the 50 mm adjustable cushion to halt the 40 mm rod smoothly.
Replacing the Airtac SI160 Standard Cylinder SI160X365SN with the SAI160X365SN
To replace the SI160X365SN, order the SAI160X365SN to retain the exact ISO 15552 mounting interface, 365 mm stroke, M36x2 rod thread and G3/4 port. Confirm your mounting accessory (LB, FA, TC, etc.) and the -S magnet for CS1-B/DS1-B sensors (the SAI uses current AirTAC switches). The NBR seal is standard. If you need more force than the 10053 N at 0.5 MPa (or 14074 N at 0.7 MPa), step up to a 200 mm bore; if less, a 125 mm bore provides 6136 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. Finally, at 365 mm stroke, use an external guide to prevent rod bending and side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X365SN
- ✓ 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 SI160X365SN FAQ
Yes, the SI160X365SN is discontinued. The direct replacement is the SAI160X365SN. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 365 mm stroke, output force, G3/4 port and mounting fixtures.
This double-acting cylinder uses a G3/4 air port. It delivers a push force of 10053 N and a pull force of 9425 N at 0.5 MPa. At 0.7 MPa the push force is 14074 N, and 18095 N at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X365SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X365SN replacement — usually within 7-8 hours.