This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X700TC, 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 SI200X700TC 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 SAI200X700TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X700TC is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 700mm stroke. Delivering 15708N push force at 0.5MPa via a G3/4 port, it is replaced by the SAI200X700TC. This direct upgrade matches the original TC trunnion mount, M36x2 thread, and 50mm cushions.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure. Without a -S suffix, this SKU cannot take a sensor. For load holding, the cushion only decelerates; use SAIL or BSAI lock variants.
| Model | Airtac SI200 Standard Cylinder SI200X700TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X700TC |
| 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 SAI200X700TC 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 SAI200X700TC 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 large heavy-duty stamping presses requiring 15708N push force at 0.5MPa with robust 50mm adjustable cushions to absorb high kinetic energy.
Actuates oversized machining and assembly fixtures where a true ISO 15552 TC trunnion mount is needed to handle 28274N at 0.9MPa.
To replace the SI200X700TC, order the SAI200X700TC. Verify the ISO 15552 TC trunnion interface, 700mm stroke, G3/4 port, and M36x2 rod thread. Dropping to a 160mm bore yields 10053N at 0.5MPa, while 200mm provides 15708N. This non-magnet SKU cannot accept CS1-B/DS1-B switches. For 700mm strokes, use external guides to prevent rod bending. Air cushions only decelerate; for load holding on air loss, specify the SAIL lock or BSAI clamp-lock variant.
Replacement checklist
Yes, the SI200X700TC is discontinued. The direct replacement is the SAI200X700TC. It features the same ISO 15552 TC mounting interface, 200mm bore, 700mm stroke, G3/4 port, and output force, fitting existing fixtures directly.
The 200mm bore uses a G3/4 port. It generates 15708N push and 15080N pull at 0.5MPa, 21991N push at 0.7MPa, and 28274N push at 0.9MPa. The theoretical max force is 3204kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X700TC replacement — usually within 7-8 hours.