This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X355SFTC, 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 SI160X355SFTC
The AirTAC Airtac SI160 Standard Cylinder SI160X355SFTC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 355mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X355SFTC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke355 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X355SFTC
- 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 SI160X355SFTC
The AirTAC SI160X355SFTC is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 355 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI160X355SFTC, a direct upgrade retaining the exact ISO 15552 mounting interface, M36x2 rod thread, and 50 mm cushions.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also introduces lock variants like SAIL and BSAI absent in the SI line.
Airtac SI160 Standard Cylinder SI160X355SFTC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X355SFTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X355SFTC |
| Bore size | Ø160 mm |
| Stroke | 355 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 SAI160X355SFTC 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 SAI160X355SFTC 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 SI160X355SFTC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×355 | 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 SI160X355SFTC Is Used
Heavy Press Stamping
Drives large metal forming presses requiring 10053 N of push force at 0.5 MPa to deform thick plate stock reliably.
Mold Clamping Fixtures
Secures heavy injection molds via the FTC trunnion mount, handling high clamping forces without shifting under pressure.
Replacing the Airtac SI160 Standard Cylinder SI160X355SFTC with the SAI160X355SFTC
To replace the SI160X355SFTC, order the SAI160X355SFTC. Confirm the FTC trunnion mount, 355 mm stroke, G3/4 port, and the -S magnet for CS1-B/DS1-B sensors (the SAI uses current AirTAC switches). If you need less force, a 125 mm bore yields 6136 N push at 0.5 MPa; if you need more, a 200 mm bore provides 15708 N. Note that a plain cylinder drifts without live air—use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. Finally, at 355 mm stroke, use external guides to prevent rod bending and side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X355SFTC
- ✓ 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 SI160X355SFTC FAQ
Yes, the SI160X355SFTC is discontinued. The direct replacement is the SAI160X355SFTC. It shares the identical ISO 15552 mounting interface, 160 mm bore, 355 mm stroke, force, G3/4 port, and FTC trunnion mounting, fitting directly into existing fixtures.
The 160 mm bore provides 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 maximum theoretical force of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s, with a 50 mm adjustable air cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X355SFTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X355SFTC replacement — usually within 7-8 hours.