This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID200X700S, 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 SID200X700S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 700mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID200X700S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID200X700S is a discontinued double-acting double-rod ISO 15552 cylinder where a rod exits both ends, ensuring force is equal both ways at 15080 N @0.5 MPa, 21110 N @0.7 MPa, and 27141 N @0.9 MPa. It features a 200mm bore, 700mm stroke, G3/4 air port, M36x2 rod thread, and 50mm adjustable cushions. The direct replacement is the SAID200X700S, retaining the same mounting interface and bore.
Because both faces use the rod-side area, push and pull force are identical, preventing single-rod push mismatch. The SAI replacement adds an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches.
| Model | Airtac SID Series Double-Rod Cylinder SID200X700S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID200X700S |
| Bore size | Ø200 mm |
| Stroke | 700 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 SAID200X700S 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAID200X700S 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). |
|---|---|
| 200 | 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 double-ended press where identical push and pull forces of 21110 N @0.7 MPa are required to form components on both advance and retract strokes.
Powers an automated transfer carriage using the opposing rod end to drive a secondary tool, maintaining synchronized motion without adding a second cylinder.
Lifts a 769 kg guided vertical payload using the equal both-ways force, relying on the double rod to resist rotation during heavy descent.
To replace the discontinued SID200X700S, specify the SAID200X700S, which is a direct upgrade keeping the ISO 15552 interface, 200mm bore, 700mm stroke, and G3/4 port. Size both ways by verifying the equal both-ways force of 15080 N @0.5 MPa meets your requirement, or step to neighbor bores if more capacity is needed. A double rod is right when you need equal push/pull force, anti-rotation stability, or a back rod to carry a sensor cam. Mounting options include Basic, FA, LB, and TC. The -S magnet supports legacy CS1-B/DS1-B switches. For the 700mm stroke, use external guides to prevent rod-bending and side-load damage.
Replacement checklist
Yes, the SID200X700S is discontinued. The direct replacement is the SAID200X700S, which shares the same ISO 15552 mounting interface, 200mm bore, 700mm stroke, G3/4 port, and equal both-ways force.
As a double-rod cylinder, force is equal both ways: 15080 N @0.5 MPa, 21110 N @0.7 MPa, and 27141 N @0.9 MPa. The air port is G3/4, the rod thread is M36x2, and speed is 30-500 mm/s. A plain cylinder does not hold loads on air loss; use an external rod lock or SAIL/BSAI variant for held loads.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID200X700S replacement — usually within 7-8 hours.