This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X800S, 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 SID160X800S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 800mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID160X800S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID160X800S is a discontinued double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force are equal at 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. The direct replacement is the SAID160X800S, sharing the same 160mm bore, 800mm stroke, G3/4 port, and mounting interface. The SAI family upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
This 160mm bore model features a 40mm piston rod, M36x2 rod thread, and 50mm adjustable air cushions at each end. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches; current AirTAC switches are used on the SAI replacement.
| Model | Airtac SID Series Double-Rod Cylinder SID160X800S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X800S |
| Bore size | Ø160 mm |
| Stroke | 800 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 SAID160X800S 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 SAID160X800S 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. |
| ×800 | 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 from a single 160mm bore piston, utilising the equal push and pull force of 13194 N @0.7 MPa for synchronized material removal.
Moves heavy pallets along an 800mm stroke using the dual-rod architecture to prevent mechanical twisting, maintaining precise alignment without external guides.
To replace the discontinued SID160X800S, install the SAID160X800S directly; it matches the ISO 15552 mounting interface, bore, stroke, and G3/4 port. Size both directions by verifying the equal force (9425 N @0.5 MPa) handles your load, or step to neighbouring bores (125mm or 200mm) if margins are tight. A double rod is right when you need anti-rotation stability or want to drive two tools from one piston. Reuse FA, LB, or TC mounts. The -S magnet enables sensing. For this 800mm stroke, use external guides to prevent rod bending under side loads. For load holding on air loss, use an external rod lock or SAIL/BSAI variant, as cushions only decelerate.
Replacement checklist
Yes, the SID160X800S is discontinued. The direct replacement is the SAID160X800S. It shares the same ISO 15552 interface, 160mm bore, 800mm stroke, G3/4 port, and equal-both-ways force, but adds an upgraded Y-shaped piston seal.
Because it is a double-rod cylinder, force is equal both ways: 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. The air port is G3/4. A plain cylinder does not hold loads on air loss; use an external rod lock for holding.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X800S replacement — usually within 7-8 hours.