This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X160, 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 SID80X160 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X160, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID80X160 is a discontinued double-acting double-rod ISO 15552 cylinder where a rod exits both ends, making push and pull force equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The direct replacement is the SAID80X160, matching the 80mm bore, 160mm stroke, G3/8 port, and mounting interface. The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life.
This SKU lacks a magnet (-S) and cannot take a sensor. Because both faces use the rod-side area, the back rod can drive a second tool or carry a sensor cam on a different model. A plain cylinder drifts on air loss; cushions only decelerate, so use an external rod lock for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID80X160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X160 |
| Bore size | Ø80 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID80X160 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAID80X160 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). |
|---|---|
| 80 | 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 opposing grippers to center and transfer heavy pallets on a conveyor line, utilizing the equal push and pull force to maintain balance without twisting.
Powers two separate machining heads from the single piston, allowing one tool to mill while the other retracts, maximizing cycle efficiency.
Applies equal 3175 N @0.7 MPa clamping force on the downstroke and consistent ejection force on the upstroke to prevent binding in precision stamping dies.
Replace the SID80X160 directly with the SAID80X160, reusing your existing ISO 15552 FA, LB, or TC mounts. Size both directions by equal force: if 3175 N @0.7 MPa is insufficient, step up to the 100mm bore, or drop to 63mm (1962 N @0.7) for lower drag. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools from one piston. This non-magnetic SKU cannot accept switches. For the 160mm stroke side-load is minimal, but for any stroke >=300mm ensure guide alignment to prevent rod binding.
Replacement checklist
Yes, the SID80X160 is discontinued. The direct replacement is the SAID80X160. It matches the ISO 15552 interface, 80mm bore, 160mm stroke, G3/8 port, and 25mm rod, offering an upgraded piston seal for lower start-up pressure.
Because it is a double-rod cylinder, force is equal both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The air port is G3/8, the rod thread is M20x1.5, and it features 36mm adjustable cushions at each end. It operates at 0.15-1.0 MPa with speeds of 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X160 replacement — usually within 7-8 hours.