This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX115S, 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 SI200AX115S
The AirTAC SI200 Standard Cylinder SI200AX115S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 115mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX115S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke115 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX115S
- 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 SI200AX115S
The AirTAC SI200AX115S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 115 mm stroke. It delivers 15708 N push and 15080 N pull at 0.5 MPa, peaking at 3204 kgf. The direct is the SAI200AX115S, retaining the exact G3/4 port, M36x2 thread, and 50 mm cushions. This rod uses SUS420J2 stainless steel, and the -S magnet pairs with CS1-B/DS1-B sensors.
The SAI upgrade features two Y-shaped piston seals for low start-up pressure. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line.
Airtac SI200 Standard Cylinder SI200AX115S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX115S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX115S |
| Bore size | Ø200 mm |
| Stroke | 115 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 SAI200AX115S 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 SAI200AX115S 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 SI200AX115S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×115 | 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 SI200AX115S Is Used
Heavy Stamp Pressing
Drives large metal forming dies requiring massive push force, utilizing the 15708 N capability at 0.5 MPa to shape thick plate steel reliably.
Pallet Positioning
Shifts fully loaded heavy-duty pallets or machinery bases along transfer lines, where the 115 mm stroke provides precise indexing into workstations.
Industrial Clamp Actuation
Actuates massive clamping fixtures holding large fabricated components during welding or machining, benefiting from the SUS420J2 stainless rod.
Replacing the Airtac SI200 Standard Cylinder SI200AX115S with the SAI200AX115S
To replace the SI200AX115S, order the SAI200AX115S. Verify the ISO 15552 mounting interface, 115 mm stroke, G3/4 port, and your specific mounting accessory. The SAI uses current AirTAC switches for the magnet, replacing legacy CS1-B/DS1-B units. If you need more force, the 200 mm bore already provides 21991 N at 0.7 MPa; if less is required, a 160 mm bore offers 14074 N at the same pressure. Note that plain cylinders drift without live air, so for load holding, use an external pilot check valve or the SAIL/BSAI lock variant. Since the stroke is under 300 mm, severe rod-bending side loads are less of a concern, but always guide the load properly.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX115S
- ✓ 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 SI200AX115S FAQ
Yes, the AirTAC SI200AX115S is discontinued. The direct replacement is the SAI200AX115S. It is dimensionally interchangeable per ISO 15552, maintaining the same 200 mm bore, 115 mm stroke, output force, G3/4 port, and mounting interface.
This 200 mm bore cylinder uses a G3/4 air port. It generates 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 SAI200AX115S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX115S replacement — usually within 7-8 hours.