This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X65SFTC, 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.

The AirTAC Airtac SI160 Standard Cylinder SI160X65SFTC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 65mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X65SFTC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X65SFTC is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 65 mm stroke. It delivers 10053 N push and 9425 N pull at 0.5 MPa, utilizing a G3/4 port and M36x2 rod thread. The direct replacement is the SAI160X65SFTC, which matches the original FTC trunnion mount, output force, and dimensions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and longevity. For high-heat environments, Viton H seals raise the temperature limit to 150 C.
| Model | Airtac SI160 Standard Cylinder SI160X65SFTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X65SFTC |
| Bore size | Ø160 mm |
| Stroke | 65 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 SAI160X65SFTC carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160X65SFTC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×65 | 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).
Generates 14074 N at 0.7 MPa to form thick metal components, utilizing the 65 mm stroke for rapid, high-force pressing cycles.
Handles heavy loaded pallets in automated distribution lines, taking advantage of the 512 kg vertical lift capacity.
Extracts large molded parts from heavy machinery, relying on the 50 mm adjustable cushion to decelerate the 40 mm rod smoothly.
To replace the SI160X65SFTC, order the SAI160X65SFTC. Confirm the ISO 15552 interface, 160 mm bore, 65 mm stroke, G3/4 port, and FTC trunnion mounting. The -S suffix means a magnet is present for CS1-B/DS1-B sensors; the SAI uses current AirTAC switches. Sizing both ways: a 200 mm bore offers more force, while a 125 mm bore provides 6136 N push at 0.5 MPa. Note that 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 variants. Rod material options include carbon steel, SUS420J2, or SUS304.
Replacement checklist
Yes, the SI160X65SFTC is discontinued. The direct replacement is the SAI160X65SFTC. It is dimensionally interchangeable per ISO 15552, retaining the same FTC trunnion mount, 160 mm bore, 65 mm stroke, force, and G3/4 port.
At 0.5 MPa it pushes 10053 N and pulls 9425 N. At 0.7 MPa it pushes 14074 N, and 18095 N at 0.9 MPa. The theoretical max is 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s, with a 50 mm adjustable cushion at both ends.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X65SFTC replacement — usually within 7-8 hours.