This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X1050S, 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 SI200X1050S
The AirTAC SI200 Standard Cylinder SI200X1050S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 1050mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X1050S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke1050 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X1050S
- 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 SI200X1050S
The AirTAC SI200X1050S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 1050 mm stroke. Delivering 15708 N push force at 0.5 MPa through a G3/4 port, its direct replacement is the SAI200X1050S, which preserves the exact mounting interface, M36x2 thread, and 50 mm cushions.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200X1050S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X1050S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X1050S |
| Bore size | Ø200 mm |
| Stroke | 1050 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 SAI200X1050S 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 SAI200X1050S 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 SI200X1050S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×1050 | 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 SI200X1050S Is Used
Heavy Stamp Press
Drives large press dies requiring 15708 N push force at 0.5 MPa over a 1050 mm travel distance.
Bulk Material Gate
Actuates large hopper gates in mining or aggregate lines, utilizing the 50 mm adjustable cushions.
Replacing the Airtac SI200 Standard Cylinder SI200X1050S with the SAI200X1050S
To replace the SI200X1050S, order the SAI200X1050S. Confirm the ISO 15552 mounting interface, 1050 mm stroke, G3/4 port, and your mounting accessory (LB, FA, TC, etc.). The -S magnet enables CS1-B/DS1-B sensors. At 0.5 MPa it pushes 15708 N; if undersized, a custom bore is needed as 200 mm is the maximum. For 1050 mm strokes, use external guides to prevent rod bending and side-load damage. The air cushion only decelerates; it does not hold load. For dead-load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X1050S
- ✓ 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 SI200X1050S FAQ
Yes, the SI200X1050S is discontinued. The direct replacement is the SAI200X1050S. It is dimensionally interchangeable per ISO 15552, retaining the same 200 mm bore, 1050 mm stroke, force, G3/4 port, and mounting fixtures.
This 200 mm bore cylinder uses a G3/4 port. It delivers 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and 28274 N push at 0.9 MPa. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X1050S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X1050S replacement — usually within 7-8 hours.