This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX15S, 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 SI200AX15S
The AirTAC SI200 Standard Cylinder SI200AX15S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 15mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX15S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke15 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX15S
- 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 SI200AX15S
The AirTAC SI200AX15S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 15 mm stroke. It delivers 15708 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI200AX15S, which retains the same interface, force, and mounting.
This SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -A suffix indicates a SUS420J2 stainless steel rod, and the -S suffix provides a piston magnet for legacy CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200AX15S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX15S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX15S |
| Bore size | Ø200 mm |
| Stroke | 15 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 SAI200AX15S 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 SAI200AX15S 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 SI200AX15S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×15 | 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 SI200AX15S Is Used
Heavy Press Clamping
Generates 21991 N of push force at 0.7 MPa to secure large steel plates in a hydraulic press fixture before the stamping cycle begins.
Pallet Ejection
Uses the 15080 N pull force at 0.5 MPa to swiftly eject loaded pallets from a heavy-duty conveyor station without overstressing the guide rails.
Mold Separation
Leverages the short 15 mm stroke and 3204 kgf maximum theoretical force to break loose and separate large industrial injection molds safely.
Replacing the Airtac SI200 Standard Cylinder SI200AX15S with the SAI200AX15S
To replace the discontinued SI200AX15S, order the SAI200AX15S. Confirm the ISO 15552 mounting interface, the 200 mm bore, the 15 mm stroke, the G3/4 port, and the SUS420J2 stainless rod (-A). Because this 15 mm stroke is nonstandard, verify the exact cushion and end-cap dimensions. The -S magnet works with legacy CS1-B/DS1-B switches, though the SAI uses current AirTAC sensors. If stepping down, a 160 mm bore offers 10053 N push at 0.5 MPa; stepping up is not available above 200 mm. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX15S
- ✓ 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 SI200AX15S FAQ
Yes, the AirTAC SI200AX15S is discontinued. The direct replacement is the SAI200AX15S. It is dimensionally interchangeable per ISO 15552, retaining the same 200 mm bore, 15 mm stroke, G3/4 port, and mounting interface.
The 200 mm bore provides a push force of 15708 N and a pull force of 15080 N at 0.5 MPa. At 0.7 MPa, the push force is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical maximum force is 3204 kgf at 1.0 MPa. The operating speed range is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX15S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX15S replacement — usually within 7-8 hours.