This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X80SH, 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 SI160X80SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X80SH, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X80SH is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 80 mm stroke. It delivers 10053 N push and 9425 N pull at 0.5 MPa, operating through a G3/4 port. The direct replacement is the SAI160X80SH, matching the bore, stroke, force, port, and ISO 15552 mounting interface for existing fixtures.
This -H variant specifies Viton FKM seals for 0-150 C high-temperature environments. The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The -S magnet works with legacy CS1-B/DS1-B sensors.
| Model | Airtac SI160 Standard Cylinder SI160X80SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X80SH |
| Bore size | Ø160 mm |
| Stroke | 80 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 SAI160X80SH 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 SAI160X80SH 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. |
| ×80 | 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).
Uses the 10053 N push force at 0.5 MPa to form thick metal plates in automated fabrication lines.
The Viton H high-temperature seal securely holds heavy cast components near 150 C curing ovens.
To replace the SI160X80SH, order the SAI160X80SH. Confirm the ISO 15552 mounting interface, 80 mm stroke, G3/4 port, and your mounting accessory. The -S magnet enables CS1-B/DS1-B sensors, while the -H denotes Viton FKM seals for 0-150 C heat. If you need less force, the 125 mm bore offers 6136 N push at 0.5 MPa; if you need more, the 200 mm bore provides 15708 N. A plain cylinder drifts on air loss, so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. With an 80 mm stroke, side-load risks are minimal, but always guide the rod to prevent bending.
Replacement checklist
Yes, the SI160X80SH is discontinued. The direct replacement is the SAI160X80SH. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 160 mm bore, 80 mm stroke, force, G3/4 port, and mounting 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 max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s. It features a 40 mm rod, M36x2 thread, and 50 mm cushions.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X80SH replacement — usually within 7-8 hours.