This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X810, 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 SI160X810 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 810mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X810, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X810 is a discontinued double-acting ISO 15552 profile cylinder with an 810 mm stroke, delivering 10053 N push and 9425 N pull at 0.5 MPa. It features a Ø40 mm rod, M36x2 thread, 50 mm cushions, and a G3/4 port. AirTAC replaced it with the SAI160X810.
The SAI160X810 is a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, and force. It upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure. Without a -S magnet, this SKU cannot take a sensor.
| Model | Airtac SI160 Standard Cylinder SI160X810 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X810 |
| Bore size | Ø160 mm |
| Stroke | 810 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 SAI160X810 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 SAI160X810 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. |
| ×810 | 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).
Provides the robust 10053 N force needed to eject large formed parts from heavy presses over an 810 mm travel distance.
Shifts loaded pallets along transfer lines, utilizing the long 810 mm stroke to index materials between workstations.
Applies up to 18095 N at 0.9 MPa for assembling large components, requiring external guides to manage the extended rod length.
To replace the SI160X810, order the SAI160X810, confirming the G3/4 port, M36x2 thread, and ISO 15552 mounting accessory. This non-magnetic SKU cannot fit CS1-B/DS1-B sensors. At 810 mm, prevent rod bending by using an external guide. Neighbouring bores: 125 mm gives 6136 N [email protected], while 200 mm gives 15708 N. Air cushions only decelerate; for load holding on air loss, use an external rod lock, pilot check valve, or SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI160X810 is discontinued. The direct replacement is the SAI160X810. It shares the same ISO 15552 mounting interface, 160 mm bore, 810 mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
The bore is 160 mm with 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 max of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X810 replacement — usually within 7-8 hours.