This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X200S, 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 SID80X200S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X200S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID80X200S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, yielding equal push and pull force of 2268 N at 0.5 MPa. Because both faces use the rod-side area, you get identical thrust in both directions. This bore features a 25 mm piston rod, an M20x1.5 rod-end thread, and a fixed G3/8 air port. This SID model is discontinued; the direct replacement is the SAID80X200S, which reuses the same ISO 15552 mounting interface and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life.
Choosing a double-rod design provides anti-rotation stability and allows the back rod to carry a sensor cam or drive a second tool simultaneously. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. Note that air cushions only decelerate the piston near stroke end; a plain cylinder cannot hold a load on air loss, so an external rod lock or SAIL/BSAI variant is required for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID80X200S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X200S |
| Bore size | Ø80 mm |
| Stroke | 200 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 SAID80X200S 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 SAID80X200S 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. |
| ×200 | 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 clamps or machining heads simultaneously from a single piston, utilizing the equal both-ways thrust to maintain balanced part gripping on an automated line.
Pushes a diverting arm across a belt while the opposing rod prevents rotational twist, ensuring the guide stays perfectly parallel during high-speed package sorting.
Lifts a 100 kg materials rack vertically using the 116 kg safe vertical lift capacity, relying on the dual rods to keep the jig level without external linear bearings.
To replace the discontinued SID80X200S, install the direct replacement SAID80X200S, which matches the 80 mm bore, 200 mm stroke, G3/8 port, and ISO 15552 mounting dimensions (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because force is equal both ways at 2268 N @0.5 MPa, you can size both directions simultaneously; if you need more thrust, step up to the 100 mm bore, or drop to the 63 mm bore if 1402 N is sufficient. A double rod is the right choice when you need anti-rotation resistance, want to drive two tools from one piston, or need a rear sensor cam. The -S suffix ensures you have the magnet for position sensing. For strokes of 300 mm or longer, verify your side-load limits to prevent guide bushing wear.
Replacement checklist
Yes, the SID80X200S is discontinued. The direct replacement is the SAID80X200S. It shares the identical ISO 15552 mounting interface, 80 mm bore, 200 mm stroke, G3/8 port, and equal both-ways force, while adding an upgraded piston seal for longer life.
As a double-rod cylinder, the push and pull forces are equal both ways: 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. The fixed air port size for this 80 mm bore is G3/8, and it operates at speeds of 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X200S replacement — usually within 7-8 hours.