This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X180S, 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 SI200X180S
The AirTAC SI200 Standard Cylinder SI200X180S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 180mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X180S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke180 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X180S
- 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 SI200X180S
The AirTAC SI200X180S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 180mm stroke, delivering 15708 N push force at 0.5 MPa through its G3/4 port. It is replaced by the SAI200X180S.
This SAI direct maintains the exact ISO 15552 mounting interface, M36x2 thread, and 50mm cushions. The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure.
Airtac SI200 Standard Cylinder SI200X180S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X180S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X180S |
| Bore size | Ø200 mm |
| Stroke | 180 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 SAI200X180S 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 SAI200X180S 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 SI200X180S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×180 | 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 SI200X180S Is Used
Heavy Press Operations
Drives large stamping and forming presses requiring 15708 N of push force at 0.5 MPa with stable 180mm travel.
Industrial Clamp Systems
Secures heavy structural fabrications during machining, utilizing the 3204 kgf maximum theoretical holding capacity.
Replacing the Airtac SI200 Standard Cylinder SI200X180S with the SAI200X180S
To replace the SI200X180S, order the SAI200X180S, confirming the ISO 15552 interface, 180mm stroke, G3/4 port, and -S magnet for CS1-B/DS1-B sensors. A 160mm bore yields 10053 N at 0.5 MPa, while a 200mm bore gives 15708 N. For load holding on air loss, use an external rod lock or pilot check valve, as cushions only decelerate. Explore SAIL or BSAI lock variants if needed.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X180S
- ✓ 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 SI200X180S FAQ
Yes, the SI200X180S is discontinued. The direct replacement is the SAI200X180S, which shares the same ISO 15552 mounting interface, 200mm bore, 180mm stroke, G3/4 port, and output force.
It features a G3/4 port and delivers 15708 N push / 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, 28274 N at 0.9 MPa, and a 3204 kgf max at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X180S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X180S replacement — usually within 7-8 hours.