This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X80, 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 SID160X80 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID160X80, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID160X80 is a discontinued double-acting double-rod ISO 15552 cylinder where a rod exits both ends on one piston, making push and pull force equal at 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. It features a 160mm bore, 40mm rod, M36x2 thread, 50mm adjustable cushions, G3/4 port, and 30-500 mm/s speed. The direct replacement is the SAID160X80, matching the interface, stroke, and mounting.
Because both faces use the rod-side area, this SKU prevents rod rotation and can drive two tools simultaneously. The SAID upgrade uses a two Y-shaped one-way piston seal for low start-up pressure. Without a -S magnet, this SKU cannot take a magnetic switch. Note: air cushions only decelerate; use an external rod lock or SAIL/BSAI variant to hold loads on air loss.
| Model | Airtac SID Series Double-Rod Cylinder SID160X80 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X80 |
| Bore size | Ø160 mm |
| Stroke | 80 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 SAID160X80 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 SAID160X80 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. |
| ×80 | 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 with equal 9425 N @0.5 MPa force on both faces, ensuring perfectly synchronized material removal without stroke imbalance.
Uses the double-rod architecture to prevent mechanical twisting during heavy product diversion on a 160mm bore assembly line, eliminating the need for external guide rails.
Applies balanced clamping force from both ends to halt and stabilize large pallets, using the 50mm adjustable cushions to decelerate the 13194 N @0.7 MPa load smoothly.
To replace the discontinued SID160X80, install the direct replacement SAID160X80—it preserves the ISO 15552 mounting interface, G3/4 port, and equal-both-ways force. Size both directions by verifying the 9425 N @0.5 MPa capacity is sufficient; if not, step up to the 200mm bore or down to the 125mm bore. A double-rod design is right when you need anti-rotation, dual-tool driving, or a back rod for a sensor cam (though this specific no-magnet SKU cannot support switches). Mounting options include Basic, FA, LB, and TC. For stroke lengths >=300, verify side-load limits. For held loads, add an external rod lock because cushions only decelerate.
Replacement checklist
Yes, the AirTAC SID160X80 is discontinued. The direct replacement is the SAID160X80. It matches the ISO 15552 interface, 160mm bore, 80mm stroke, G3/4 port, and equal-both-ways force. The SAI family also adds upgraded seals and SAIL/BSAI lock variants.
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. Speed is 30-500 mm/s. This non-magnetic SKU cannot take a switch, and the 50mm cushions only decelerate; they do not hold loads on air loss.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X80 replacement — usually within 7-8 hours.