This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX210S, 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 SI200AX210S
The AirTAC Airtac SI200 Standard Cylinder SI200AX210S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 210mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX210S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke210 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX210S
- 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 SI200AX210S
The AirTAC SI200AX210S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 210mm stroke. It delivers 15708 N push and 15080 N pull at 0.5 MPa, peaking at 3204 kgf. The direct replacement is the SAI200AX210S, matching the G3/4 port, M36x2 thread and ISO 15552 mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. This -A variant uses a SUS420J2 stainless rod, and the -S magnet works with CS1-B/DS1-B switches.
Airtac SI200 Standard Cylinder SI200AX210S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX210S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX210S |
| Bore size | Ø200 mm |
| Stroke | 210 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 SAI200AX210S 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 SAI200AX210S 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 SI200AX210S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×210 | 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 SI200AX210S Is Used
Heavy Press Systems
Drives large stamping and forming presses requiring 15708 N of push force at 0.5 MPa with stable ISO 15552 mounting.
Mold Clamping Stations
Secures heavy injection molds and large tooling fixtures using the 3204 kgf maximum theoretical holding capacity.
Replacing the Airtac SI200 Standard Cylinder SI200AX210S with the SAI200AX210S
To replace the SI200AX210S, order the SAI200AX210S. Verify the ISO 15552 mounting interface, 210mm stroke, G3/4 port and the -S magnet. The -A rod is SUS420J2 stainless steel. If you need more force than the 21991 N at 0.7 MPa, a larger custom bore is required. For less force, consider the 160mm bore. A plain cylinder drifts on air loss; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 210mm stroke, guide rods are recommended to prevent side-load bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX210S
- ✓ 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 SI200AX210S FAQ
Yes, the SI200AX210S is discontinued. The direct replacement is the SAI200AX210S. It features the same ISO 15552 mounting interface, 200mm bore, 210mm stroke, G3/4 port and force ratings, fitting existing fixtures perfectly.
It has a G3/4 port. The 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 maximum theoretical force of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX210S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX210S replacement — usually within 7-8 hours.