This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X500S, 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 SI200X500S
The AirTAC SI200 Standard Cylinder SI200X500S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 500mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X500S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke500 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X500S
- 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 SI200X500S
The AirTAC SI200X500S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 500mm stroke. Delivering 15708 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI200X500S. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, output force, port and accessories, fitting existing fixtures perfectly.
The SAI upgrade features a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. For load holding, note that a plain cylinder drifts on air loss as the cushion only decelerates; use an external rod lock or the SAIL/BSAI lock variants. This -S model includes a piston magnet for CS1-B/DS1-B switches.
Airtac SI200 Standard Cylinder SI200X500S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X500S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X500S |
| Bore size | Ø200 mm |
| Stroke | 500 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 SAI200X500S 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 SAI200X500S 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 SI200X500S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×500 | 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 SI200X500S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 21991 N push force at 0.7 MPa to form thick metal components.
Large Mold Clamping
Secures oversized industrial molds in place during heavy injection or casting operations with 15080 N pull force.
Replacing the Airtac SI200 Standard Cylinder SI200X500S with the SAI200X500S
To replace the SI200X500S, order the SAI200X500S and verify your ISO 15552 mounting interface, G3/4 port thread (PT/G/NPT), and M36x2 rod-end thread. Keep the -S magnet for CS1-B/DS1-B legacy sensors (the SAI uses current AirTAC switches). For sizing, the 200mm bore yields 15708 N push at 0.5 MPa; if less force is needed, a 160mm bore provides 10053 N. Because the 500mm stroke is long, use external guides to prevent rod bending and side-load damage. The 50mm adjustable air cushions decelerate but do not hold loads on air loss—add a pilot check valve or explore the SAIL or BSAI lock variants for secure holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X500S
- ✓ 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 SI200X500S FAQ
Yes, the AirTAC SI200X500S is discontinued. The direct replacement is the SAI200X500S. It is dimensionally interchangeable per ISO 15552, matching the 200mm bore, 500mm stroke, 15708 N force, G3/4 port and mounting accessories.
At 0.5 MPa it provides 15708 N push and 15080 N pull. At 0.7 MPa push is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical max force is 3204 kgf at 1.0 MPa, with an operating speed of 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X500S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X500S replacement — usually within 7-8 hours.