This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X430, 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 SI160X430 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 430mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X430, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X430 is a discontinued double-acting ISO 15552 profile cylinder featuring a 160mm bore and 430mm stroke, delivering 10053 N push force at 0.5 MPa. AirTAC replaced this end-of-line unit with the SAI160X430, a direct upgrade retaining the exact G3/4 port, M36x2 rod thread, and ISO 15552 mounting interface.
The SAI successor introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this non-magnet SKU cannot accept sensors, and plain cylinders drift without air; explore SAIL or BSAI lock variants for holding.
| Model | Airtac SI160 Standard Cylinder SI160X430 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X430 |
| Bore size | Ø160 mm |
| Stroke | 430 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 SAI160X430 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 SAI160X430 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. |
| ×430 | 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 press beds and heavy forming dies requiring up to 14074 N thrust at 0.7 MPa, utilizing the 430mm stroke to open wide clearances for material loading.
Actuates large clamping arms on automotive welding stations where the ISO 15552 interface allows rigid mounting and the G3/4 port supplies high volume.
To replace the obsolete SI160X430, order the SAI160X430 ensuring the ISO 15552 mounting interface, 160mm bore, 430mm stroke, and G3/4 port match your fixture. Confirm your thread choice (PT/G/NPT) and mounting accessory (LB, FA, TC, etc.). This non-magnet version cannot host CS1-B/DS1-B sensors; if position detection is needed, select an SAI equivalent with the magnet option. Sizing both ways: a 200mm bore offers more thrust, while a 125mm bore provides 6136 N push at 0.5 MPa if downsizing is viable. Because the 430mm stroke exceeds 300mm, use external guides to prevent rod bending and side-load damage. The air cushion only decelerates; for load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
Yes, the SI160X430 is discontinued. The direct replacement is the AirTAC SAI160X430. It is dimensionally interchangeable per ISO 15552, matching the 160mm bore, 430mm stroke, output force, G3/4 port, and mounting accessories, so it fits existing fixtures directly.
This double-acting cylinder uses a G3/4 air port. The thrust 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 force of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X430 replacement — usually within 7-8 hours.