This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X15S, 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 SI200X15S
The AirTAC SI200 Standard Cylinder SI200X15S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 15mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X15S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke15 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X15S
- 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 SI200X15S
The AirTAC SI200X15S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 15mm stroke. It delivers 15708 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI200X15S, matching the bore, stroke, output force, port, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SI200X15S includes a magnet for CS1-B/DS1-B sensors, while the SAI family adds SAIL and BSAI lock variants the SI lacked.
Airtac SI200 Standard Cylinder SI200X15S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X15S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X15S |
| Bore size | Ø200 mm |
| Stroke | 15 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 SAI200X15S 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 SAI200X15S 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 SI200X15S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×15 | 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 SI200X15S Is Used
Heavy Press Operations
Drives high-tonnage pressing and forming tasks, utilizing the 15708 N push force at 0.5 MPa to seat heavy industrial components securely.
Massive Clamp Actuation
Provides immense clamping pressure for large fabrication fixtures, ensuring rigid holding of heavy steel plates during welding or machining.
Short-Stroke Ejection
Executes rapid 15mm ejection of dense finished parts from heavy molds, relying on the 3204 kgf max theoretical force for reliable release.
Replacing the Airtac SI200 Standard Cylinder SI200X15S with the SAI200X15S
To replace the SI200X15S, order the SAI200X15S. Verify the ISO 15552 mounting interface, 200mm bore, 15mm stroke, G3/4 port (PT/G/NPT), and the -S magnet for current AirTAC switches. Sizing both ways: dropping to a 160mm bore yields 10053 N push @0.5 MPa, while a 200mm bore at 0.7 MPa provides 21991 N. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For held loads, use an external pilot check valve or the SAIL/BSAI lock variants. Even at 15mm stroke, ensure minimal side-load to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X15S
- ✓ 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 SI200X15S FAQ
Yes, the SI200X15S is discontinued. The direct replacement is the SAI200X15S. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 15mm stroke, output force, G3/4 port, and mounting accessories.
The bore is 200mm with a G3/4 port. Force ratings are: 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, 28274 N push at 0.9 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X15S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X15S replacement — usually within 7-8 hours.