This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X700S, 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 SI160 Standard Cylinder SI160X700S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 700mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X700S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X700S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 700 mm stroke. It delivers a thrust of 10053 N at 0.5 MPa through its G3/4 port. The direct replacement is the SAI160X700S, retaining the exact ISO 15552 mounting interface, bore, stroke, output force, and port size. The SAI upgrade introduces an improved piston seal with two Y-shaped one-way elements for low start-up pressure and extended life.
This -S model includes a piston magnet for legacy CS1-B/DS1-B sensors, whereas the SAI replacement family uses current AirTAC switches. You can also specify Viton H seals to raise the operating temperature limit to 150 C.
| Model | Airtac SI160 Standard Cylinder SI160X700S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X700S |
| Bore size | Ø160 mm |
| Stroke | 700 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 SAI160X700S 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 SAI160X700S 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. |
| ×700 | 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).
Drives large presses and stamping stations requiring 10053 N of thrust at 0.5 MPa to form thick metal components.
Indexes heavy loaded pallets over a 700 mm travel distance, relying on external guides to prevent rod bending.
To replace the discontinued SI160X700S, order the SAI160X700S. Confirm the ISO 15552 mounting interface, 160 mm bore, 700 mm stroke, G3/4 port (PT/G/NPT thread options), and your specific mounting accessory. Because this is a 700 mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces. If sizing up or down, neighbouring bores are 125 mm and 200 mm; at 0.5 MPa this 160 mm bore yields 10053 N push and 9425 N pull. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify the SAIL or BSAI lock variants.
Replacement checklist
Yes, the SI160X700S is discontinued. The direct replacement is the SAI160X700S. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 700 mm stroke, output force, G3/4 port, and mounting interface.
This double-acting cylinder uses a G3/4 port. The force ratings are: push 10053 N and pull 9425 N at 0.5 MPa, push 14074 N at 0.7 MPa, push 18095 N at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X700S replacement — usually within 7-8 hours.