This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X30TC, 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 SI160X30TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 30mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X30TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X30TC is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 30 mm stroke. It delivers a thrust of 10053 N at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160X30TC, matching the bore, stroke, force, and TC mounting interface.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. For load holding, note the air cushion only decelerates; use a pilot check valve or SAIL lock variant.
| Model | Airtac SI160 Standard Cylinder SI160X30TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X30TC |
| Bore size | Ø160 mm |
| Stroke | 30 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 SAI160X30TC 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 SAI160X30TC 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. |
| ×30 | 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 presses and stamping dies requiring high force over a short 30 mm travel distance.
Secures heavy industrial molds in place using the 14074 N thrust available at 0.7 MPa.
Applies steady downward pressure for assembly operations needing a robust 160 mm bore.
To replace the SI160X30TC, order the SAI160X30TC. Confirm the ISO 15552 TC trunnion mount, 160 mm bore, 30 mm stroke, and G3/4 port. This non-magnetic SKU cannot take a sensor; if sensing is needed, select an SAI model with the S magnet option for current AirTAC switches. Sizing both ways: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. The theoretical max is 2050 kgf at 1.0 MPa. For holding loads without live air, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The SAIF valve variant is unavailable for this 160 mm bore.
Replacement checklist
Yes, the SI160X30TC is discontinued. The direct replacement is the SAI160X30TC, which shares the same ISO 15552 TC mounting interface, 160 mm bore, 30 mm stroke, and G3/4 port.
It features a G3/4 port and provides 10053 N push / 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a max force of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X30TC replacement — usually within 7-8 hours.