This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X75CA, 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 SI160X75CA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X75CA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X75CA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 75 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160X75CA, matching the CA clevis mount, M36x2 thread, and 50 mm cushions.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This no-S SKU lacks a magnet and cannot take a sensor. For high heat, Viton H seals raise the limit to 150 C.
| Model | Airtac SI160 Standard Cylinder SI160X75CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X75CA |
| Bore size | Ø160 mm |
| Stroke | 75 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 SAI160X75CA 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 SAI160X75CA 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. |
| ×75 | 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).
Secures large metal stampings under press beds, utilizing the 10053 N push force at 0.5 MPa to hold heavy workpieces firmly during forming operations.
Drives massive automated foundry doors via the CA clevis mount, with the 50 mm adjustable air cushions absorbing kinetic energy at the 75 mm stroke ends.
Provides the raw lifting thrust for heavy-gauge palletizers, where the 160 mm bore easily moves loads within the 512 kg vertical lift capacity.
To replace the SI160X75CA, order the SAI160X75CA. Verify the ISO 15552 CA clevis mount, 75 mm stroke, G3/4 port, and M36x2 rod thread. Because this SKU lacks the -S magnet, it cannot accept CS1-B or DS1-B sensors; order a magnet-equipped SAI if position sensing is required. Sizing both ways: the 160 mm bore yields 10053 N push at 0.5 MPa, while the smaller 125 mm bore offers 6136 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
Yes, the AirTAC SI160X75CA is discontinued. The direct replacement is the SAI160X75CA. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 75 mm stroke, CA clevis mount, and G3/4 port.
The 160 mm bore uses a G3/4 port. It generates 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X75CA replacement — usually within 7-8 hours.