This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X700N, 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 SI160X700N 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 SAI160X700N, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X700N 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, utilizing a G3/4 air port and a 50 mm adjustable air cushion at each end. As an end-of-life product, it is directly replaced by the SAI160X700N.
The SAI160X700N direct replacement shares the exact ISO 15552 mounting interface, bore, stroke, output force, and port size. It upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. This non-magnet SKU cannot accept a sensor, and the NBR seal supports -20 to +70 C (Viton H raises this to 150 C).
| Model | Airtac SI160 Standard Cylinder SI160X700N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X700N |
| 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 SAI160X700N 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 SAI160X700N 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).
Generates up to 14074 N at 0.7 MPa for securing large metal castings or heavy plates during machining and press operations.
The 700 mm stroke provides the extended reach needed to push heavy industrial molds or deep-drawn parts safely out of a press bed.
To replace the SI160X700N, order the SAI160X700N. Confirm the ISO 15552 mounting interface, the 160 mm bore, 700 mm stroke, G3/4 port (PT/G/NPT thread), and your specific mounting accessory. Because this SKU lacks the -S magnet, it cannot accept CS1-B/DS1-B sensors; you must use external sensing if required. Sizing both ways: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. For load holding, 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 variants. At 700 mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
Yes, the SI160X700N is discontinued. The direct replacement is the SAI160X700N. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 700 mm stroke, output force, G3/4 port, and mounting interface to fit existing fixtures.
This double-acting cylinder features a G3/4 air port and provides a push force of 10053 N and pull force of 9425 N at 0.5 MPa. At 0.7 MPa it pushes 14074 N, and 18095 N at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X700N replacement — usually within 7-8 hours.