This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X270CB, 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 SI200X270CB
The AirTAC Airtac SI200 Standard Cylinder SI200X270CB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 270mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X270CB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke270 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X270CB
- 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 SI200X270CB
The AirTAC SI200X270CB is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 270mm stroke, delivering 15708 N push force at 0.5 MPa via a G3/4 port. It is replaced by the direct replacement SAI200X270CB, which shares the exact CB clevis mounting interface, M36x2 rod thread, and output force.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this non-magnet SKU cannot take a sensor; the SAI family also adds SAIL lock and BSAI clamp variants the SI lacked.
Airtac SI200 Standard Cylinder SI200X270CB Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X270CB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X270CB |
| Bore size | Ø200 mm |
| Stroke | 270 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 SAI200X270CB 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 SAI200X270CB 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 SI200X270CB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×270 | 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 SI200X270CB Is Used
Heavy Press Forming
Ideal for high-tonnage pressing and forming tasks requiring the full 21991 N output at 0.7 MPa.
Bulk Material Diversion
Drives large heavy-duty diverter arms on high-capacity bulk conveyor lines at 30-500 mm/s.
Replacing the Airtac SI200 Standard Cylinder SI200X270CB with the SAI200X270CB
To replace the SI200X270CB, order the SAI200X270CB ensuring the ISO 15552 CB clevis mount, 270mm stroke, and G3/4 port match. This non-S SKU lacks a magnet and cannot accept CS1-B/DS1-B sensors. Sizing checks: the 160mm bore yields 10053 N [email protected], while the 200mm bore hits 21991 N at 0.7 MPa. For load holding, the air cushion only decelerates; use an external pilot check valve or the SAIL/BSAI lock variant to prevent drift. At 270mm stroke, minimize side-load and rod-bending by guiding the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X270CB
- ✓ 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 SI200X270CB FAQ
Yes, the SI200X270CB is discontinued. The direct replacement is the SAI200X270CB. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 270mm stroke, G3/4 port, and CB mounting interface.
It features a G3/4 port and M36x2 rod thread. Force output is 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, with a theoretical max of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X270CB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X270CB replacement — usually within 7-8 hours.