This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X1200S, 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.
Airtac SI200 Standard Cylinder SI200X1200S
The AirTAC SI200 Standard Cylinder SI200X1200S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 1200mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X1200S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke1200 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X1200S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI200 Standard Cylinder SI200X1200S
The AirTAC SI200X1200S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 1200mm stroke. It delivers a push force of 15708 N at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI200X1200S, a direct upgrade sharing the exact ISO 15552 mounting interface, M36x2 thread, and 50mm cushions.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also introduces SAIL and BSAI lock variants absent in the SI line. This -S SKU includes a piston magnet for legacy CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200X1200S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X1200S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X1200S |
| Bore size | Ø200 mm |
| Stroke | 1200 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 SAI200X1200S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200X1200S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI200 Standard Cylinder SI200X1200S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×1200 | 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).
Where the Airtac SI200 Standard Cylinder SI200X1200S Is Used
Heavy Stamping Press
Drives large platens and heavy dies where the 21991 N push force at 0.7 MPa is required to form thick metal components securely.
Pallet Shuttle System
Moves loaded pallets along a 1200mm stroke, relying on the 801 kg vertical lift capacity and external guides to prevent rod bending.
Industrial Door Actuation
Opens and closes massive bulkhead doors in manufacturing plants, utilizing the robust 40mm piston rod and adjustable 50mm cushions.
Replacing the Airtac SI200 Standard Cylinder SI200X1200S with the SAI200X1200S
To replace the SI200X1200S, order the SAI200X1200S. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G3/4 air port, and the -S magnet requirement. The SAI uses current AirTAC switches instead of the legacy CS1-B/DS1-B set. If you need less force, the neighbouring 160mm bore yields 10053 N push at 0.5 MPa; if you need more, note the 200mm bore hits a theoretical max of 3204 kgf at 1.0 MPa. Because the 1200mm stroke invites rod bending, use an external guide to prevent side loads. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding specify an external rod lock, a pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X1200S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI200 Standard Cylinder SI200X1200S FAQ
Yes, the AirTAC SI200X1200S is discontinued. The direct replacement is the SAI200X1200S. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 1200mm stroke, G3/4 port, and mounting interface. You simply order the SAI equivalent.
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 for this 200mm bore is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X1200S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X1200S replacement — usually within 7-8 hours.