This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X830LB, 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 SI160X830LB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 830mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X830LB, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X830LB is a discontinued double-acting ISO 15552 profile cylinder with an 830 mm stroke and LB foot mount. It delivers a push force of 10053 N at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160X830LB, which shares the same interface, bore, stroke, force and mounting.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SKU lacks a magnet (-S) so it cannot take a sensor. For high heat, Viton H seals raise the temperature limit to 150 C.
| Model | Airtac SI160 Standard Cylinder SI160X830LB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X830LB |
| Bore size | Ø160 mm |
| Stroke | 830 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 SAI160X830LB 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 SAI160X830LB 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. |
| ×830 | 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 positioning heavy steel blanks into large forming presses, utilizing the 10053 N push force to overcome initial material resistance.
Actuates heavy-duty diverter gates on aggregate or mining conveyor lines, where the 830 mm stroke fully clears the belt path.
To replace this SI160X830LB, order the SAI160X830LB. Confirm the ISO 15552 LB foot mount, 830 mm stroke, G3/4 port and M36x2 rod thread. Sizing both ways: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. This plain cylinder cannot hold a load without live air—the cushion only decelerates. For load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. With an 830 mm stroke, use external guides to prevent rod bending and side loads. This no-magnet SKU cannot accept CS1-B/DS1-B switches.
Replacement checklist
Yes, the SI160X830LB is discontinued. The direct replacement is the SAI160X830LB. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 830 mm stroke, LB foot mount, G3/4 port and 10053 N force.
This double-acting cylinder uses a G3/4 air port. At 0.5 MPa it provides 10053 N push and 9425 N pull force. At 0.7 MPa push 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 SAI160X830LB replacement — usually within 7-8 hours.