This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX65, 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 SI200AX65
The AirTAC Airtac SI200 Standard Cylinder SI200AX65 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 65mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX65, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke65 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX65
- 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 SI200AX65
The AirTAC SI200AX65 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 65mm stroke. It delivers 15708 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI200AX65, retaining the exact bore, stroke, force, port and mounting interface.
This SKU features a SUS420J2 stainless steel rod but lacks a magnet, so it cannot accept a CS1-B/DS1-B sensor. The SAI upgrade uses two Y-shaped piston seals for low start-up pressure.
Airtac SI200 Standard Cylinder SI200AX65 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX65 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX65 |
| Bore size | Ø200 mm |
| Stroke | 65 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 SAI200AX65 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 SAI200AX65 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 SI200AX65
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×65 | 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 SI200AX65 Is Used
Heavy Press Operations
Drives 200mm bore tooling for high-tonnage stamping and forming, utilizing the 21991 N push force at 0.7 MPa to seat heavy components.
Industrial Clamp Systems
Secures oversized molds and castings during machining, relying on the 40mm SUS420J2 stainless rod to resist corrosion in humid plant environments.
Replacing the Airtac SI200 Standard Cylinder SI200AX65 with the SAI200AX65
To replace the SI200AX65, order the SAI200AX65. Verify the ISO 15552 mounting interface, 200mm bore, 65mm stroke, G3/4 port, and SUS420J2 rod. Since this non-magnetic SKU lacks a sensor groove switch, if position detection is needed you must select an SAI model with the S magnet option and current AirTAC switches. If sizing down, a 160mm bore yields 10053 N at 0.5 MPa; sizing up is not available. For load holding on air loss, note this plain cylinder drifts—the cushion only decelerates. Use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX65
- ✓ 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 SI200AX65 FAQ
Yes, the SI200AX65 is discontinued. The direct replacement is the SAI200AX65. It is dimensionally interchangeable per ISO 15552, keeping the same 200mm bore, 65mm stroke, force, G3/4 port and mounting interface.
It has a G3/4 port. The force ratings are: 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 SAI200AX65
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX65 replacement — usually within 7-8 hours.