This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X50FA, 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 SI200X50FA
The AirTAC SI200 Standard Cylinder SI200X50FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 50mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X50FA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke50 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X50FA
- 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 SI200X50FA
The AirTAC SI200X50FA is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 50 mm stroke. It delivers 15708 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI200X50FA, which matches the ISO 15552 mounting interface, M36x2 rod thread, and FA flange.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. For high heat, Viton H seals raise the limit to 150 C. If you need load holding on air loss, use the SAIL or BSAI lock variants, as cushions only decelerate.
Airtac SI200 Standard Cylinder SI200X50FA Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X50FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X50FA |
| Bore size | Ø200 mm |
| Stroke | 50 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 SAI200X50FA 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 SAI200X50FA 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 SI200X50FA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×50 | 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 SI200X50FA Is Used
Heavy Pressing
Drives 15708 N at 0.5 MPa for seating large bearings or forming thick plates in hydraulic-free setups.
Replacing the Airtac SI200 Standard Cylinder SI200X50FA with the SAI200X50FA
To replace the SI200X50FA, order the SAI200X50FA. Confirm the ISO 15552 FA flange interface, 50 mm stroke, and G3/4 port. This SKU has no magnet (-S), so position sensing is impossible. If sizing up or down, note the 160 mm bore offers 10053 N push at 0.5 MPa. A plain cylinder drifts without air; for holding use an external pilot check valve or the SAIL lock variant. Rod material options include carbon steel, SUS420J2 (A), or SUS304 (B).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X50FA
- ✓ 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 SI200X50FA FAQ
Yes, the SI200X50FA is discontinued. The direct replacement is the SAI200X50FA, matching the ISO 15552 FA flange, 200 mm bore, 50 mm stroke, and G3/4 port.
It features a G3/4 port. Forces are 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a max of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X50FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X50FA replacement — usually within 7-8 hours.