This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX300, 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 SI200AX300
The AirTAC SI200 Standard Cylinder SI200AX300 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 SAI200AX300, 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 → SAI200AX300
- 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 SI200AX300
The AirTAC SI200AX300 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 300 mm stroke. It delivers 15708 N push and 15080 N pull at 0.5 MPa through a G3/4 port, utilizing a 40 mm SUS420J2 stainless steel rod with an M36x2 thread. As this SKU lacks a magnet (-S), it cannot accept position sensors.
AirTAC replaced this legacy unit with the SAI200AX300, a direct sharing the exact ISO 15552 mounting interface, force, and 50 mm cushions. The SAI upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. If you need load holding on air loss, step up to the SAIL or BSAI lock variants.
Airtac SI200 Standard Cylinder SI200AX300 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX300 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX300 |
| 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 SAI200AX300 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 SAI200AX300 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 SI200AX300
| 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 SI200AX300 Is Used
Heavy Press Stamping
Drives large press dies requiring 15708 N of push force at 0.5 MPa, utilizing the 300 mm stroke to form thick metal components.
Industrial Clamp Systems
Secures oversized fabricated structures during machining, using the adjustable 50 mm air cushions to decelerate heavy loads smoothly.
Replacing the Airtac SI200 Standard Cylinder SI200AX300 with the SAI200AX300
To replace the SI200AX300, order the SAI200AX300. It drops into existing fixtures via the identical ISO 15552 interface, matching the 200 mm bore, 300 mm stroke, G3/4 port, and mounting accessories. Because this specific SKU has no magnet, it cannot support legacy CS1-B/DS1-B sensors; order an -S variant if sensing is required. When sizing, neighboring bores offer different force classes, but at 0.5 MPa this bore yields 15708 N push. Note that a plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock or pilot check valve for holding. Finally, at 300 mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX300
- ✓ 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 SI200AX300 FAQ
Yes, the SI200AX300 is discontinued. The direct replacement is the SAI200AX300. It shares the identical ISO 15552 mounting interface, 200 mm bore, 300 mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly while offering an upgraded piston seal.
This double-acting cylinder operates at 30-500 mm/s. It generates 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 of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX300
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX300 replacement — usually within 7-8 hours.