This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX800, 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 SI200AX800
The AirTAC Airtac SI200 Standard Cylinder SI200AX800 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 800mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX800, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX800
- 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 SI200AX800
The AirTAC SI200AX800 is a discontinued double-acting ISO 15552 profile cylinder with an 800 mm stroke and a 200 mm bore. Generating 15708 N push at 0.5 MPa, it is replaced directly by the SAI200AX800. This direct upgrade shares the exact ISO 15552 mounting interface, G3/4 port, and 3204 kgf max force, fitting existing fixtures seamlessly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The -A suffix specifies a SUS420J2 stainless steel rod for corrosion resistance. Without a -S magnet, this SKU cannot take a sensor.
Airtac SI200 Standard Cylinder SI200AX800 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX800 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX800 |
| Bore size | Ø200 mm |
| Stroke | 800 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 SAI200AX800 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 SAI200AX800 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 SI200AX800
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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 SI200AX800 Is Used
Heavy Stamp Pressing
Drives large press tools using 21991 N of thrust at 0.7 MPa to form thick metal components reliably.
Automated Assembly Line
Shifts heavy machinery frames along an 800 mm travel distance using an external guide to prevent rod bending.
Replacing the Airtac SI200 Standard Cylinder SI200AX800 with the SAI200AX800
To replace the SI200AX800, order the SAI200AX800 and confirm the ISO 15552 mounting interface, 200 mm bore, 800 mm stroke, G3/4 port, and SUS420J2 rod. Because this is a non-magnetic SKU, it cannot accept CS1-B/DS1-B switches; add the -S suffix if sensing is needed. At 800 mm, prevent rod bending by using an external guide to absorb side loads. For downward loads, note that cushions only decelerate; use an external pilot check valve or the SAIL/BSAI lock variant to prevent drifting on air loss. If downsizing, two 160 mm bores yield higher combined force, while a single 200 mm bore at 0.5 MPa provides 15708 N push.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX800
- ✓ 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 SI200AX800 FAQ
Yes, the AirTAC SI200AX800 is discontinued. The direct replacement is the SAI200AX800. It shares the identical ISO 15552 mounting interface, 200 mm bore, 800 mm stroke, output force, and G3/4 port, fitting your existing fixtures perfectly.
This double-acting cylinder uses a G3/4 air port. It delivers 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 SAI200AX800
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX800 replacement — usually within 7-8 hours.