This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX80S, 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 SI200AX80S
The AirTAC Airtac SI200 Standard Cylinder SI200AX80S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX80S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX80S
- 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 SI200AX80S
The AirTAC SI200AX80S is a discontinued double-acting ISO 15552 profile cylinder featuring a 200mm bore and 80mm stroke. Built with an extruded aluminum barrel, it delivers 15708 N push force at 0.5 MPa, utilizing a G3/4 air port and an M36x2 rod thread. The direct replacement is the SAI200AX80S, matching the original bore, stroke, output force, port, and ISO 15552 mounting interface for seamless fixture integration.
The SAI upgrade introduces a refined piston seal with two Y-shaped one-way elements, ensuring low start-up pressure and extended service life. This specific SI200AX80S unit includes the -A SUS420J2 stainless steel piston rod for corrosion resistance and the -S magnet for legacy CS1-B/DS1-B sensors. Note that a plain cylinder cannot hold a load without live air; consider the SAIL or BSAI lock variants for static holding.
Airtac SI200 Standard Cylinder SI200AX80S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX80S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX80S |
| Bore size | Ø200 mm |
| Stroke | 80 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 SAI200AX80S 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 SAI200AX80S 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 SI200AX80S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×80 | 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 SI200AX80S Is Used
Heavy Stamp Pressing
Drives large stamping dies requiring 21991 N push at 0.7 MPa, utilizing the 50mm adjustable cushion to absorb high kinetic energy at stroke end.
Automated Clamp Systems
Secures large fabricated components during machining, where the SUS420J2 stainless rod provides necessary corrosion resistance in humid shop environments.
Replacing the Airtac SI200 Standard Cylinder SI200AX80S with the SAI200AX80S
To replace the discontinued SI200AX80S, order the SAI200AX80S, verifying the ISO 15552 mounting interface, 80mm stroke, G3/4 port (PT/G/NPT thread), and your specific mounting accessory. Confirm the -S magnet for current AirTAC switches and the -A SUS420J2 stainless rod requirement. A plain SAI does not hold load on air loss; the cushion only decelerates. For load holding, use the SAIL (air-released lock) or BSAI (clamp-lock) variants, or an external pilot check valve. The SAIF self-valve is not available for this bore.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX80S
- ✓ 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 SI200AX80S FAQ
Yes, the SI200AX80S is discontinued. The direct replacement is the SAI200AX80S. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 80mm stroke, 15708 N force, G3/4 port, and mounting interface, but features an upgraded piston seal for longer life.
The bore 200mm cylinder operates at 30-500 mm/s. 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; with a theoretical max of 3204 kgf at 1.0 MPa. It features a G3/4 port and a 50mm adjustable cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX80S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX80S replacement — usually within 7-8 hours.