This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X900SFB, 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 SI200X900SFB
The AirTAC SI200 Standard Cylinder SI200X900SFB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 900mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X900SFB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke900 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X900SFB
- 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 SI200X900SFB
The AirTAC SI200X900SFB is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 900mm stroke. It delivers 15708 N of push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI200X900SFB, which retains the same interface, M36x2 rod thread, and 50mm cushions.
The SAI upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and longer life. You can specify Viton H seals for 0-150 C environments, and the built-in magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200X900SFB Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X900SFB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X900SFB |
| Bore size | Ø200 mm |
| Stroke | 900 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 SAI200X900SFB 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 SAI200X900SFB 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 SI200X900SFB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×900 | 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 SI200X900SFB Is Used
Heavy Stamping
Drives large presses and stamping dies requiring up to 21991 N of thrust at 0.7 MPa.
Platform Lowering
Controls the descent of heavy material handling platforms over the 900mm travel range.
Mold Actuation
Opens and closes substantial industrial molds, taking advantage of the 3204 kgf max force.
Replacing the Airtac SI200 Standard Cylinder SI200X900SFB with the SAI200X900SFB
To replace the SI200X900SFB, order the SAI200X900SFB. Verify the ISO 15552 FB flange mounting, 900mm stroke, G3/4 port, and the -S magnet. If you need less force, the 160mm bore yields 10053 N push at 0.5 MPa; for more power, there is no larger standard bore. Note that a 900mm stroke requires external guides to prevent rod bending from side loads. This plain cylinder will drift on air loss, so use a pilot check valve or the SAIL/BSAI lock variant for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X900SFB
- ✓ 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 SI200X900SFB FAQ
Yes, the SI200X900SFB is discontinued. The direct replacement is the SAI200X900SFB. It is dimensionally interchangeable per ISO 15552, matching the 200mm bore, 900mm stroke, FB flange, and G3/4 port.
It uses a G3/4 port. Force output is 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and 28274 N push at 0.9 MPa. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X900SFB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X900SFB replacement — usually within 7-8 hours.