This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X610, 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 SI160X610 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 610mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X610, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X610 is a discontinued double-acting ISO 15552 profile cylinder with a 610 mm stroke, delivering a push force of 10053 N at 0.5 MPa. It features an extruded aluminum barrel, a 40 mm piston rod, and a G3/4 air port. AirTAC replaced this legacy unit with the SAI160X610, a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, and output force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. Note that this specific SKU lacks the -S magnet, so it cannot accept CS1-B or DS1-B sensors.
| Model | Airtac SI160 Standard Cylinder SI160X610 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X610 |
| Bore size | Ø160 mm |
| Stroke | 610 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 SAI160X610 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 SAI160X610 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. |
| ×610 | 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 platens and forming dies requiring substantial thrust, utilizing the 10053 N push force at 0.5 MPa to shape heavy metal components.
Lifts substantial bulk materials on automated packaging lines, where the 610 mm stroke provides the vertical travel needed to clear tall pallet stacks.
Secures oversized workpieces in CNC machining centers, applying reliable clamping pressure while withstanding harsh industrial environments.
To replace the SI160X610, order the SAI160X610 and verify your ISO 15552 mounting accessory (such as LB foot or TC trunnion), the G3/4 port thread (PT/G/NPT), and the M36x2 rod end. Because this 610 mm stroke exceeds 300 mm, you must account for side-load and rod-bending risks—use an external guide to prevent premature wear. If sizing alternatives, neighboring bores offer different force classes: a 125 mm bore provides 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. This non-magnetic SKU cannot support position sensing. For load holding, be aware the air cushion only decelerates at stroke end and will not hold a load on air loss; you need an external pilot check valve, rod lock, or the SAIL/BSAI lock variants.
Replacement checklist
Yes, the AirTAC SI160X610 is discontinued. The direct replacement is the SAI160X610, which shares the identical ISO 15552 mounting interface, 160 mm bore, 610 mm stroke, output force, and G3/4 port, fitting directly into existing fixtures.
This double-acting cylinder uses a G3/4 air port and delivers a push force of 10053 N and a pull force of 9425 N at 0.5 MPa. At 0.7 MPa the push force is 14074 N, and 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 SAI160X610 replacement — usually within 7-8 hours.