This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX90, 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 SI200AX90
The AirTAC Airtac SI200 Standard Cylinder SI200AX90 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 SAI200AX90, 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 → SAI200AX90
- 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 SI200AX90
The AirTAC SI200AX90 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 90 mm stroke. Delivering 15708 N push force at 0.5 MPa, it features a G3/4 port, M36x2 rod thread, and a SUS420J2 stainless steel rod. The direct replacement is the SAI200AX90, matching the exact ISO 15552 mounting interface, bore, stroke, force, and port.
The SAI upgrade utilizes an advanced two Y-shaped one-way piston seal for low start-up pressure and extended life. Note this SKU lacks a magnet, so it cannot accept a position switch; the SAI family also adds SAIL and BSAI lock variants absent from the SI line.
Airtac SI200 Standard Cylinder SI200AX90 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX90 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX90 |
| 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 SAI200AX90 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 SAI200AX90 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 SI200AX90
| 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 SI200AX90 Is Used
Heavy Stamping
Drives large presses and stamping fixtures requiring 15708 N of thrust at 0.5 MPa.
Clamp Systems
Secures oversized components in machining cells using the robust 200 mm bore body.
Replacing the Airtac SI200 Standard Cylinder SI200AX90 with the SAI200AX90
To replace the SI200AX90, order the SAI200AX90. Verify your ISO 15552 mounting interface, 200 mm bore, 90 mm stroke, G3/4 port, and SUS420J2 rod. Since this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors. If sizing up or down, neighboring bores offer different force classes (e.g. 160 mm bore yields 10053 N push at 0.5 MPa). A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX90
- ✓ 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 SI200AX90 FAQ
Yes, the SI200AX90 is discontinued. The direct replacement is the SAI200AX90, which maintains the same ISO 15552 mounting interface, 200 mm bore, 90 mm stroke, force, and G3/4 port.
The 200 mm bore features a G3/4 port. It delivers 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 max of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX90
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX90 replacement — usually within 7-8 hours.