This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X1000N, 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 SI160X1000N is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 1000mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X1000N, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X1000N is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 1000 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a 40 mm rod, M36x2 thread, and a G3/4 port. The direct replacement is the SAI160X1000N, sharing the same interface, force, and mounting.
This SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The NBR seal suits -20 to +70 C, while Viton H extends this to 150 C. As a no-S SKU, it cannot take a sensor.
| Model | Airtac SI160 Standard Cylinder SI160X1000N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X1000N |
| Bore size | Ø160 mm |
| Stroke | 1000 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 SAI160X1000N 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 SAI160X1000N 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. |
| ×1000 | 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).
Provides the robust 10053 N push force needed to eject heavy finished metal components from large hydraulic presses over the 1000 mm travel distance.
Handles vertical descent of heavy palletized goods, utilizing the 9425 N pull force at 0.5 MPa to lower loads steadily within automated packaging lines.
Shifts bulky automotive sub-assemblies or heavy material blocks between conveyor zones, relying on the 160 mm bore's high thrust capacity over long strokes.
To replace the SI160X1000N, order the SAI160X1000N. Verify the ISO 15552 mounting interface, 1000 mm stroke, G3/4 port, and NBR seal. Sizing both ways: the 125 mm bore yields 6136 N push at 0.5 MPa, while the 200 mm bore yields 15708 N. At 0.7 MPa this 160 mm bore pushes 14074 N. Because the stroke is 1000 mm, use an external guide to prevent rod bending and side loads. This plain cylinder drifts on air loss; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. It lacks a magnet (-S), so CS1-B/DS1-B sensors cannot be used.
Replacement checklist
Yes, the SI160X1000N is discontinued. The direct replacement is the SAI160X1000N. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 1000 mm stroke, 40 mm rod, G3/4 port, and mounting fixtures.
The G3/4 port feeds a 40 mm rod delivering 10053 N push and 9425 N pull at 0.5 MPa. At 0.7 MPa it pushes 14074 N, and 18095 N at 0.9 MPa. The theoretical max force is 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X1000N replacement — usually within 7-8 hours.