This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX90S, 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 SI200AX90S
The AirTAC Airtac SI200 Standard Cylinder SI200AX90S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 90mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX90S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke90 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX90S
- 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 SI200AX90S
The AirTAC SI200AX90S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 90mm stroke. It delivers 15708 N push force at 0.5 MPa through a G3/4 port. The direct production replacement is the SAI200AX90S, matching the interface, force, and mounting exactly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. This -A variant uses a SUS420J2 stainless rod, and the -S magnet works with legacy CS1-B/DS1-B switches.
Airtac SI200 Standard Cylinder SI200AX90S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX90S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX90S |
| Bore size | Ø200 mm |
| Stroke | 90 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 SAI200AX90S 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 SAI200AX90S 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 SI200AX90S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×90 | 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 SI200AX90S Is Used
Heavy Pressing
Drives large stamping or forming presses requiring 15708 N push force at 0.5 MPa with stable ISO 15552 fixtures.
Industrial Clamping
Secures massive fabricated steel components during machining or welding operations using the 90mm stroke.
Replacing the Airtac SI200 Standard Cylinder SI200AX90S with the SAI200AX90S
To replace the SI200AX90S, order the SAI200AX90S. Verify the ISO 15552 mounting interface, 200mm bore, 90mm stroke, G3/4 port, and the -S magnet for CS1-B/DS1-B sensors. This -A model specifies a SUS420J2 stainless steel rod. If sizing down, a 160mm bore yields 10053 N push at 0.5 MPa; sizing up is not available. The air cushion only decelerates; it does not hold load. For load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also adds the SAIF valve variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX90S
- ✓ 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 SI200AX90S FAQ
Yes, the SI200AX90S is discontinued. The direct replacement is the SAI200AX90S. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 90mm stroke, force, G3/4 port, and mounting interface.
It features a G3/4 port and delivers 15708 N push / 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and 28274 N push at 0.9 MPa. The theoretical max force is 3204 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX90S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX90S replacement — usually within 7-8 hours.