This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X200FB, 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 SI160X200FB 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 SAI160X200FB, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X200FB is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 200 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160X200FB, matching the bore, stroke, force, port, and FB flange interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot take a sensor.
| Model | Airtac SI160 Standard Cylinder SI160X200FB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X200FB |
| 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 SAI160X200FB 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 SAI160X200FB 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 10053 N of push force at 0.5 MPa, utilizing the FB flange for rigid body mounting.
Secures heavy industrial molds in place during machining or injection processes, using the 50 mm adjustable air cushions to decelerate at stroke end.
To replace the SI160X200FB, order the SAI160X200FB. Verify the ISO 15552 mounting interface, the FB flange accessory, the G3/4 port, and the M36x2 rod thread. Because this specific SKU lacks the -S magnet, it cannot accept a CS1-B or DS1-B sensor; order a magnet-equipped version if position detection is needed. The 160 mm bore yields 10053 N push at 0.5 MPa; if less force is required, a 125 mm bore provides 6136 N. If more force is needed, the 200 mm bore offers 15708 N. A plain cylinder drifts on air loss, so for load holding use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variant. The SAI family also adds the SAIF valve variant for smaller bores.
Replacement checklist
Yes, the SI160X200FB is discontinued. The direct replacement is the SAI160X200FB. It shares the exact same ISO 15552 mounting interface, 160 mm bore, 200 mm stroke, FB flange, and G3/4 port, fitting directly into existing fixtures.
The 160 mm bore provides 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. It uses a G3/4 port and a 40 mm rod.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X200FB replacement — usually within 7-8 hours.