This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X900N, 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 SI200X900N
The AirTAC SI200 Standard Cylinder SI200X900N 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 SAI200X900N, 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 → SAI200X900N
- 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 SI200X900N
The AirTAC SI200X900N is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 900mm stroke. Delivering 15708 N push force at 0.5 MPa, it features a G3/4 port, M36x2 rod thread, and NBR seals (-N) for -20 to +70 C operation. Because this SKU lacks a magnet (-S), it cannot accept magnetic switches like the legacy CS1-B/DS1-B sensors.
You should order the direct replacement SAI200X900N. It shares the exact ISO 15552 mounting interface, 900mm stroke, output force, and accessories. The SAI upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
Airtac SI200 Standard Cylinder SI200X900N Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X900N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X900N |
| 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 SAI200X900N 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 SAI200X900N 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 SI200X900N
| 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 SI200X900N Is Used
Heavy Press Systems
Drives large platens in metal forming and stamping presses where the 15708 N output at 0.5 MPa ensures consistent clamping force.
Bulk Material Diversion
Powers large-scale diverter gates on aggregate or mining conveyors, utilizing the 900mm stroke to clear wide belts.
Replacing the Airtac SI200 Standard Cylinder SI200X900N with the SAI200X900N
To replace the SI200X900N, specify the SAI200X900N and confirm the ISO 15552 mounting accessory (LB, FA, CA, TC), G3/4 port, and NBR seal. Since this is a non-magnet SKU, it cannot support position sensing. If you need load holding on air loss, note that the air cushion only decelerates; you must add an external rod lock, pilot check valve, or use the SAIL or BSAI lock variant. At 900mm, this long stroke requires an external guide to prevent rod bending and side-load damage. Sizing both ways: a neighbouring 160mm bore yields 10053 N push at 0.5 MPa, while stepping up is unnecessary here as 200mm already provides 21991 N at 0.7 MPa.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X900N
- ✓ 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 SI200X900N FAQ
Yes, the AirTAC SI200X900N is discontinued. The direct replacement is the SAI200X900N. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 900mm stroke, output force, G3/4 port, and mounting interface.
This double-acting cylinder features a G3/4 air port. The thrust ratings are: 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 maximum force of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X900N
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X900N replacement — usually within 7-8 hours.