This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX1000, 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 SI160AX1000 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 SAI160AX1000, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160AX1000 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 1000 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port and features a SUS420J2 stainless steel rod. The direct replacement is the SAI160AX1000, matching the bore, stroke, force, port and ISO 15552 mounting interface exactly.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this non-magnetic SKU cannot take a sensor; legacy CS1-B/DS1-B switches only fit the -S version.
| Model | Airtac SI160 Standard Cylinder SI160AX1000 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX1000 |
| 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 SAI160AX1000 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 SAI160AX1000 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).
Moves large stamping blanks into hydraulic presses, utilizing the 10053 N push force to position heavy steel plates reliably.
Actuates stacked pallet magazines over a 1000 mm distance, requiring the long stroke and robust 160 mm bore thrust.
Pushes injection mold bases onto cooling racks, where the SUS420J2 stainless rod resists shop-floor humidity and coolant mist.
To replace the SI160AX1000, order the SAI160AX1000 and confirm the ISO 15552 mounting interface, 1000 mm stroke, G3/4 port and SUS420J2 rod. This plain non-magnetic SKU cannot accept a position switch. Sizing both ways: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. The cushion only decelerates; for load holding on air loss, use an external rod lock or pilot check valve, or specify the SAIL or BSAI lock variant. At 1000 mm stroke, use external guides to prevent rod bending and side loads.
Replacement checklist
Yes, the SI160AX1000 is discontinued. The direct replacement is the SAI160AX1000, which shares the same ISO 15552 mounting interface, 160 mm bore, 1000 mm stroke, output force and G3/4 port.
It has a G3/4 port. Force ratings are 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 theoretical max of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX1000 replacement — usually within 7-8 hours.