This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X75SH, 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 SI160X75SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X75SH, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X75SH is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 75 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160X75SH, matching the interface, bore, stroke, force, and mounting. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
This unit includes a piston magnet for CS1-B/DS1-B switches and a Viton H seal for 0-150 C high-temp environments. The SAI family adds SAIL and BSAI lock variants absent in the SI line.
| Model | Airtac SI160 Standard Cylinder SI160X75SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X75SH |
| Bore size | Ø160 mm |
| Stroke | 75 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 SAI160X75SH 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 SAI160X75SH 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. |
| ×75 | 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 heavy-duty stamping dies requiring 10053 N of push force at 0.5 MPa with robust 160 mm bore stability.
Ejects forged metal parts from 0-150 C ovens utilizing the Viton H high-temperature seal and 75 mm rapid stroke.
To replace the SI160X75SH, order the SAI160X75SH. Verify the ISO 15552 mounting interface, 75 mm stroke, G3/4 port, and M36x2 rod thread. The -S magnet enables CS1-B/DS1-B sensors, while the -H seal handles 0-150 C heat. For sizing, a 125 mm bore yields 6136 N push at 0.5 MPa, whereas a 200 mm bore yields 15708 N. This cylinder does not hold load without live air; use an external rod lock or pilot check valve for safety, or specify an SAIL/BSAI lock variant. With a 40 mm rod and 75 mm stroke, side-load is minimal, but always guide the load to prevent rod bending.
Replacement checklist
Yes, the AirTAC SI160X75SH is discontinued. The direct replacement is the SAI160X75SH. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 75 mm stroke, output force, G3/4 port, and mounting interface.
The 160 mm bore uses a G3/4 port. Force output is 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.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X75SH replacement — usually within 7-8 hours.