This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X225S, 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 SI200X225S
The AirTAC SI200 Standard Cylinder SI200X225S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 225mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X225S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke225 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X225S
- 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 SI200X225S
The AirTAC SI200X225S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 225mm stroke, delivering 15708N push force at 0.5MPa through a G3/4 port. The direct replacement is the SAI200X225S, matching the interface, M36x2 thread and 50mm cushions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL and BSAI lock variants absent in the SI line. The -S magnet works with CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200X225S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X225S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X225S |
| Bore size | Ø200 mm |
| Stroke | 225 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 SAI200X225S 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 SAI200X225S 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 SI200X225S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×225 | 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 SI200X225S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping actuators where the 28274N push force at 0.9MPa is required to form thick steel plates.
Large Mold Clamping
Secures substantial injection molds on stationary platens, utilizing the 15080N pull force at 0.5MPa for reliable hold.
Industrial Press Brake
Provides steady downward pressure for bending thick metal sheets, relying on the 50mm adjustable cushions to absorb impact.
Replacing the Airtac SI200 Standard Cylinder SI200X225S with the SAI200X225S
To replace the SI200X225S, order the SAI200X225S and confirm the ISO 15552 mounting interface, 225mm stroke, G3/4 port (PT/G/NPT) and accessory type. The -S magnet enables CS1-B/DS1-B switches, though the SAI uses current AirTAC sensors. Sizing both ways: a 160mm bore yields 10053N [email protected], while a 200mm bore at 0.7MPa provides 21991N. This cylinder does not hold load without live air; the 50mm cushions only decelerate. For static holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 225mm stroke, side-load and rod-bending risks are moderate, so guide the load to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X225S
- ✓ 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 SI200X225S FAQ
Yes, the SI200X225S is discontinued. The direct replacement is the SAI200X225S. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 225mm stroke, output force, G3/4 port and mounting interface to fit existing fixtures directly.
The SI200X225S delivers 15708N push and 15080N pull at 0.5MPa, 21991N push at 0.7MPa, 28274N push at 0.9MPa, and a theoretical max of 3204kgf at 1.0MPa. Operating speed is 30-500mm/s. It features a G3/4 port, M36x2 rod thread, and 50mm adjustable air cushions at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X225S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X225S replacement — usually within 7-8 hours.