This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X200CB, 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 SI160X200CB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 200mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X200CB, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X200CB is a discontinued double-acting ISO 15552 profile cylinder delivering 10053 N push force at 0.5 MPa. It features a 160 mm bore, 200 mm stroke, and a CB clevis mount. AirTAC replaced this legacy unit with the SAI160X200CB, a direct upgrade retaining the exact ISO 15552 mounting interface, G3/4 port, and output force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S) and cannot accept CS1-B/DS1-B sensors. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent in the SI line.
| Model | Airtac SI160 Standard Cylinder SI160X200CB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X200CB |
| Bore size | Ø160 mm |
| Stroke | 200 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 SAI160X200CB 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 SAI160X200CB 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. |
| ×200 | 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).
Drives large stamping and forming presses requiring up to 14074 N push force at 0.7 MPa, utilizing the robust 40 mm piston rod.
Clamps oversized automotive or structural components securely during machining via the ISO 15552 CB clevis mounting interface.
To replace the SI160X200CB, order the SAI160X200CB ensuring the ISO 15552 CB clevis mount, 200 mm stroke, and G3/4 port match your fixture. Because this SKU has no magnet, it cannot support position sensing; if switches are needed, specify an SAI with the -S option for current AirTAC sensors. For sizing, the 160 mm bore yields 10053 N push at 0.5 MPa; if less force is required, a 125 mm bore provides 6136 N, while a 200 mm bore offers 15708 N. A plain cylinder drifts on air loss—the 50 mm cushion only decelerates the stroke end—so for load holding consider an external pilot check valve or the SAIL/BSAI lock variants. Although 200 mm is under the 300 mm side-load threshold, always verify rod alignment to prevent bending.
Replacement checklist
Yes, the AirTAC SI160X200CB is discontinued. The direct replacement is the SAI160X200CB. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 200 mm stroke, CB mount, and G3/4 port, so it fits existing fixtures directly.
This double-acting cylinder uses a G3/4 air port. It delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and 18095 N push at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa, with an operating speed of 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X200CB replacement — usually within 7-8 hours.