This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX1100, 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 SI160BX1100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 1100mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX1100, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160BX1100 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 1100 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a SUS304 stainless piston rod, M36x2 thread, G3/4 port, and 50 mm cushions. The direct replacement is the SAI160BX1100, matching the interface, force, and mounting exactly.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this SKU lacks a magnet, it cannot take a sensor. The SAI family also adds SAIL and BSAI lock variants absent in the SI line.
| Model | Airtac SI160 Standard Cylinder SI160BX1100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX1100 |
| Bore size | Ø160 mm |
| Stroke | 1100 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 SAI160BX1100 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 SAI160BX1100 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. |
| ×1100 | 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).
Generates 14074 N at 0.7 MPa for high-tonnage forming, stamping, and pressing operations requiring a robust ISO 15552 interface.
The 1100 mm stroke accommodates extended push distances in automated lines, moving heavy workpieces between machining stations.
The SUS304 piston rod provides corrosion resistance for tooling environments exposed to coolants, washdowns, or high humidity.
To replace the SI160BX1100, order the SAI160BX1100. Confirm the ISO 15552 mounting interface, 1100 mm stroke, G3/4 port, and your specific mounting accessory. The -B rod specifies SUS304 stainless steel; keep this material for corrosion resistance. Since this non-magnetic SKU cannot accept a CS1-B or DS1-B sensor, add external sensing if required. Sizing checks: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify an SAIL/BSAI lock variant. For the 1100 mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
Yes, the SI160BX1100 is discontinued. The direct replacement is the SAI160BX1100. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 1100 mm stroke, G3/4 port, and mounting interface.
It features a G3/4 port. The force ratings are: 10053 N push and 9425 N pull at 0.5 MPa; 14074 N push at 0.7 MPa; 18095 N push at 0.9 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 SAI160BX1100 replacement — usually within 7-8 hours.