This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X500, 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 SI200X500
The AirTAC Airtac SI200 Standard Cylinder SI200X500 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 SAI200X500, 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 → SAI200X500
- 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 SI200X500
The AirTAC SI200X500 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, it features a 40mm rod, M36x2 thread, and a G3/4 air port. AirTAC replaced this legacy unit with the SAI200X500, a direct replacement matching the exact ISO 15552 mounting interface, bore, output force, and port size.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. Note this specific SKU lacks a magnet, so it cannot accept CS1-B or DS1-B sensors. If high-temperature operation is needed, a Viton H seal option raises the range to 150 C.
Airtac SI200 Standard Cylinder SI200X500 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X500 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X500 |
| 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 SAI200X500 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 SAI200X500 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 SI200X500
| 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 SI200X500 Is Used
Heavy Press Stamping
Drives large metal forming presses requiring 15708 N of thrust at 0.5 MPa to shape thick steel plates.
Injection Molding Clamps
Secures heavy industrial molds on injection molding lines, utilizing the 50mm adjustable air cushions to decelerate massive masses.
Replacing the Airtac SI200 Standard Cylinder SI200X500 with the SAI200X500
To replace the discontinued SI200X500, order the SAI200X500. Verify your ISO 15552 mounting accessory (LB foot, FA flange, or TC trunnion), the G3/4 port thread (PT/G/NPT), and the 500mm stroke. Sizing both ways: a neighbouring 160mm bore yields 10053 N push at 0.5 MPa, while stepping up is not standard above 200mm. Because this is a 500mm stroke, external guides are recommended to prevent rod-bending under side loads. A plain cylinder does not hold load without live air; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. This no-magnet SKU cannot support sensing.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X500
- ✓ 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 SI200X500 FAQ
Yes, the SI200X500 is discontinued. The direct replacement is the SAI200X500. It is dimensionally interchangeable per ISO 15552, matching the 200mm bore, 500mm stroke, G3/4 port, and mounting interface, so it fits existing fixtures perfectly.
The 200mm bore provides 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 theoretical max of 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s, operating pressure is 0.15-1.0 MPa, and it uses a G3/4 port.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X500
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X500 replacement — usually within 7-8 hours.