This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X800SH, 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 SI160X800SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 800mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X800SH, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X800SH is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 800 mm stroke. Generating 10053 N push force at 0.5 MPa, it features a G3/4 port, M36x2 rod thread, and a 50 mm adjustable air cushion at each end. The direct replacement is the SAI160X800SH, matching the exact ISO 15552 mounting interface, bore, stroke, output force, and port size. The SAI uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
This -SH configuration includes a piston magnet for legacy CS1-B/DS1-B switches and a Viton H seal rated for 0 to 150 C. Note that a plain cylinder drifts without live air; use an external rod lock or the SAIL/BSAI lock variant for load holding.
| Model | Airtac SI160 Standard Cylinder SI160X800SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X800SH |
| Bore size | Ø160 mm |
| Stroke | 800 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 SAI160X800SH 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 SAI160X800SH 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. |
| ×800 | 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 heavy metal blanks into large stamping presses, using the 10053 N thrust to push dense materials reliably over the 800 mm travel.
Ejects loaded pallets from conveyors, safely managing the 512 kg vertical lift margin while handling substantial packaging weights.
Extracts large molded parts from high-temperature environments, utilizing the Viton H seal to withstand 150 C ambient heat.
To replace the SI160X800SH, order the SAI160X800SH. Verify the ISO 15552 mounting interface, 160 mm bore, 800 mm stroke, G3/4 port, and your specific mounting accessory. The -S denotes a piston magnet for CS1-B/DS1-B sensors, and -H specifies the high-temp Viton seal. Operating speed is 30-500 mm/s. If downsizing, a 125 mm bore yields 6136 N push at 0.5 MPa; if upsizing, a 200 mm bore provides 15708 N. Because 800 mm exceeds 300 mm, add external guides to prevent rod bending and side-load damage. A standard cylinder does not hold load without air; for drop protection, use a pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI160X800SH is discontinued. The direct replacement is the SAI160X800SH. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 800 mm stroke, output force, G3/4 port, and mounting interface.
The G3/4 port bore delivers a push force of 10053 N and pull of 9425 N at 0.5 MPa. At 0.7 MPa push is 14074 N, and 18095 N at 0.9 MPa. 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 SAI160X800SH replacement — usually within 7-8 hours.