This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX290S, 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 SI200AX290S
The AirTAC SI200 Standard Cylinder SI200AX290S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 290mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX290S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke290 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX290S
- 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 SI200AX290S
The AirTAC SI200AX290S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 290mm stroke. Built with an extruded aluminium barrel, it delivers 15708 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI200AX290S, which matches the original mounting interface, output force, and M36x2 rod thread.
The SAI upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and extended life. This specific unit features the -A SUS420J2 stainless steel rod for corrosion resistance and a -S magnet for legacy CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200AX290S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX290S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX290S |
| Bore size | Ø200 mm |
| Stroke | 290 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 SAI200AX290S 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 SAI200AX290S 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 SI200AX290S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×290 | 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 SI200AX290S Is Used
Heavy Stamping Press
Drives large platens and heavy dies in metal forming, utilising the 21991 N push force at 0.7 MPa to shape thick steel plates reliably.
Large Mold Clamping
Secures oversized injection molds in place during high-pressure cycles, relying on the rigid 40mm SUS420J2 stainless rod.
Replacing the Airtac SI200 Standard Cylinder SI200AX290S with the SAI200AX290S
To replace the discontinued SI200AX290S, order the SAI200AX290S. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the 290mm stroke, G3/4 port, and the -S magnet requirement. The SAI family also adds SAIL (air-released lock) and BSAI (clamp-lock) variants absent from the SI line; note that a plain cylinder drifts on air loss as the 50mm cushion only decelerates, so use a lock variant or pilot check valve for held loads. If downsizing, a 160mm bore yields 10053 N at 0.5 MPa; if upsizing is impossible, this 200mm bore maxes at 3204 kgf (1.0 MPa). At 290mm stroke, ensure guide rails carry side loads to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX290S
- ✓ 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 SI200AX290S FAQ
Yes, the AirTAC SI200AX290S is discontinued. The direct replacement is the SAI200AX290S. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 290mm stroke, G3/4 port, and mounting fixtures.
This double-acting cylinder operates at 30-500 mm/s. It generates 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 SAI200AX290S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX290S replacement — usually within 7-8 hours.