This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X700, 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 SID80X700 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X700, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID80X700 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. This 80mm bore unit features a 25mm piston rod, M20x1.5 rod thread, G3/8 port, and 36mm adjustable cushions. The SID80X700 is discontinued; the direct replacement is the SAID80X700, matching the bore, stroke, force, port, and mounting interface.
The SAI upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and longer life. Because this SKU lacks the -S magnet, it cannot accept a magnetic switch. Note that air cushions only decelerate; for load holding on air loss, use an external rod lock or SAIL/BSAI variant.
| Model | Airtac SID Series Double-Rod Cylinder SID80X700 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X700 |
| Bore size | Ø80 mm |
| Stroke | 700 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 SAID80X700 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 SAID80X700 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. |
| ×700 | 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 a dual-sided conveyor pusher where the opposing rod simultaneously retracts a diverter, keeping timing perfectly matched.
Applies 2268 N of clamping force in a precision assembly press, using the twin rods to prevent platen twist without external guides.
Elevates a workpiece carrier while the rear rod extends to clear an overhead obstruction, saving vertical space in tight cells.
To replace the discontinued SID80X700, install the SAID80X700 directly—it retains the exact ISO 15552 dimensions, G3/8 port, and 2268 N equal-both-ways force. If you need to resize, the neighboring bores are 63mm (1402 N) and 100mm (3681 N); ensure your required force fits the equal push/pull ratings. A double-rod design is correct when you need anti-rotation stability, or when the back rod must drive a second mechanism. You can reuse FA, LB, or TC mounts. As this is a non-magnetized SKU, sensors cannot be used. For the 700mm stroke, add external guides to prevent rod bending under side loads.
Replacement checklist
Yes, the SID80X700 is discontinued. The direct replacement is the SAID80X700. It matches the ISO 15552 mounting interface, 80mm bore, 700mm stroke, G3/8 port, and equal-both-ways force, while adding an upgraded two-piece Y-shaped piston seal.
The double-rod design provides equal force both ways: 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. It operates at 0.15-1.0 MPa, runs at 30-800 mm/s, and uses a G3/8 port. The cushions only decelerate; use an external rod lock for load holding.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X700 replacement — usually within 7-8 hours.