This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X300SCB, 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 SI200X300SCB
The AirTAC SI200 Standard Cylinder SI200X300SCB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 300mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X300SCB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke300 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X300SCB
- 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 SI200X300SCB
The AirTAC SI200X300SCB is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 300 mm stroke. It delivers 15708 N push at 0.5 MPa through a G3/4 port. The direct replacement is the SAI200X300SCB, matching the exact bore, stroke, force, port, and CB mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The SAI family also adds SAIL and BSAI lock variants the SI lacked.
Airtac SI200 Standard Cylinder SI200X300SCB Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X300SCB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X300SCB |
| Bore size | Ø200 mm |
| Stroke | 300 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 SAI200X300SCB 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 SAI200X300SCB 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 SI200X300SCB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×300 | 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 SI200X300SCB Is Used
Heavy Press Forming
Generates 21991 N at 0.7 MPa for stamping and forming thick metal plates in automated fabrication lines.
Pallet Lift Gates
Provides the raw push force needed to raise loaded 801 kg vertical lift gates in logistics depots.
Injection Molding
Actuates large heavy-duty clamps and core pulls on industrial plastic injection molding machinery.
Replacing the Airtac SI200 Standard Cylinder SI200X300SCB with the SAI200X300SCB
To replace the SI200X300SCB, order the SAI200X300SCB. Verify the ISO 15552 CB clevis mounting, 300 mm stroke, G3/4 port, and the -S magnet for CS1-B/DS1-B sensors (the SAI uses current AirTAC switches). If sizing alternatives, a 160 mm bore yields 10053 N push at 0.5 MPa. For load holding, a plain cylinder drifts on air loss as cushions only decelerate; use an external rod lock, pilot check valve, or SAIL/BSAI variant. At 300 mm stroke, use external guides to prevent rod bending from side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X300SCB
- ✓ 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 SI200X300SCB FAQ
Yes, the SI200X300SCB is discontinued. The direct replacement is the SAI200X300SCB. It is dimensionally interchangeable per ISO 15552, retaining the same 200 mm bore, 300 mm stroke, force, G3/4 port, and CB mounting interface.
It delivers 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s. The rod is 40 mm with an M36x2 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X300SCB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X300SCB replacement — usually within 7-8 hours.