This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X160S, 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 Airtac SID Series Double-Rod Cylinder SID160X160S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 160mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID160X160S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID160X160S is a double-acting, double-rod ISO 15552 cylinder featuring a 160mm bore and 160mm stroke. A 40mm rod exits both ends, ensuring push and pull force is equal both ways (9425N at 0.5MPa). This model is discontinued; the direct replacement is the SAID160X160S, matching the G3/4 port, M36x2 thread, and 50mm cushions. The SAI upgrade uses a two Y-shaped one-way piston seal for lower start-up pressure.
Because the rod occupies both faces, force is identical in both directions. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B sensors. Note that air cushions only decelerate; for load holding without live air, use an external rod lock or SAIL/BSAI variant.
| Model | Airtac SID Series Double-Rod Cylinder SID160X160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X160S |
| Bore size | Ø160 mm |
| Stroke | 160 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 SAID160X160S 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 SAID160X160S 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. |
| ×160 | 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 two opposing machining heads simultaneously from one piston, utilizing the equal both ways force to maintain perfectly synchronized cutting pressure.
Moves heavy pallets along a conveyor line where the dual 40mm rods prevent rotational twist, ensuring precise linear tracking without external guides.
Lifts a 480kg safety gate using the 9425N force at 0.5MPa, relying on the equal push and pull force to smoothly raise and lower the barrier.
To replace the discontinued SID160X160S, install the direct replacement SAID160X160S, reusing the exact ISO 15552 mounting interface (Basic, FA, LB, TC). Both ways force is 9425N at 0.5MPa; if sizing down, verify neighbouring bores handle this equal push/pull load. Choose a double-rod design when you need anti-rotation stability or to drive two tools. The -S magnet enables position sensing. For this 160mm stroke, side-load is minimal, but for stroke >=300mm ensure guide alignment to prevent binding.
Replacement checklist
Yes, the SID160X160S is discontinued. The direct replacement is the SAID160X160S, sharing the same ISO 15552 interface, 160mm bore, 160mm stroke, G3/4 port, and mounting options.
Force is equal both ways: 9425N at 0.5MPa, 13194N at 0.7MPa, and 16964N at 0.9MPa. Operating speed is 30-500mm/s. The cylinder uses a G3/4 port and 50mm adjustable air cushions.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X160S replacement — usually within 7-8 hours.