This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X285, 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 SI160X285 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 285mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X285, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X285 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 285 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a 40 mm carbon steel rod, M36x2 thread, and a G3/4 air port. AirTAC replaced this EOL unit with the SAI160X285, a direct replacement retaining the exact ISO 15552 mounting interface, bore, stroke, and output force.
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 accept a sensor. If you need load holding on air loss, explore the SAIL or BSAI lock variants, as standard cushions only decelerate.
| Model | Airtac SI160 Standard Cylinder SI160X285 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X285 |
| Bore size | Ø160 mm |
| Stroke | 285 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 SAI160X285 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 SAI160X285 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. |
| ×285 | 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).
Ideal for applying high clamping forces in automated stamping and forming lines, utilizing the 10053 N thrust at 0.5 MPa to secure heavy metal workpieces.
Moves heavy injection molds or tooling fixtures within a plant, relying on the rigid ISO 15552 profile barrel and 40 mm rod to maintain alignment under stress.
To replace the discontinued SI160X285, order the SAI160X285 keeping the identical ISO 15552 mounting interface, 285 mm stroke, and G3/4 port. Because this stroke is non-standard, verify lead times. This non-magnetic version cannot host a CS1-B or DS1-B sensor; order a magnet-equipped SAI if position detection is required. Sizing both ways: a neighbouring 200 mm bore offers more thrust, while a 125 mm bore provides 6136 N push at 0.5 MPa if 10053 N is excessive. For this 285 mm stroke, use guide rails to prevent rod bending under side loads. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL lock variant.
Replacement checklist
Yes, the AirTAC SI160X285 is discontinued. The direct replacement is the SAI160X285. It shares the same ISO 15552 mounting interface, 160 mm bore, 285 mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
This double-acting cylinder uses a G3/4 air port. It generates a push force of 10053 N and a pull force of 9425 N at 0.5 MPa. At 0.7 MPa the push force is 14074 N, and at 0.9 MPa it is 18095 N. 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 SAI160X285 replacement — usually within 7-8 hours.