This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X410, 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 SI200 Standard Cylinder SI200X410 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 410mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X410, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X410 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 410mm stroke. It delivers 15708 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI200X410, retaining the exact ISO 15552 mounting interface, M36x2 rod thread, and 50mm cushions.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This non-magnet SKU cannot take a sensor. If high temperatures up to 150 C are needed, specify the Viton H seal option.
| Model | Airtac SI200 Standard Cylinder SI200X410 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X410 |
| Bore size | Ø200 mm |
| Stroke | 410 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 SAI200X410 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 SAI200X410 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. |
| ×410 | 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).
Applies 21991 N at 0.7 MPa for stamping or forming large metal panels, utilizing the 410mm stroke to clear bulky workpieces.
Secures large injection molds with up to 3204 kgf at 1.0 MPa, relying on the rigid 200mm profile barrel for stability.
To replace the SI200X410, order the SAI200X410. Confirm the ISO 15552 mounting accessory (LB, FA, CA, TC), the G3/4 port thread (PT/G/NPT), and the M36x2 rod. Because this is a non-S SKU, it lacks a magnet and cannot accept CS1-B/DS1-B sensors. Sizing down, a 160mm bore yields 10053 N push at 0.5 MPa; sizing up is not available. Note that a 410mm stroke requires external guides to prevent rod bending under side loads. For load holding on air loss, add an external pilot check valve or rod lock, as the cushions only decelerate. The SAI family also offers the SAIL or BSAI clamp-lock variants for integrated braking.
Replacement checklist
Yes, the AirTAC SI200X410 is discontinued. The direct replacement is the SAI200X410. It is dimensionally interchangeable per ISO 15552, matching the 200mm bore, 410mm stroke, G3/4 port, and mounting fixtures.
At 0.5 MPa it pushes 15708 N and pulls 15080 N. At 0.7 MPa push is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical max force is 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X410 replacement — usually within 7-8 hours.