This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX275, 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 SI200AX275
The AirTAC SI200 Standard Cylinder SI200AX275 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 275mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX275, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke275 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX275
- 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 SI200AX275
The AirTAC SI200AX275 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 275mm stroke. It delivers 15708N push force at 0.5MPa via a G3/4 port. The direct replacement is the SAI200AX275, matching the interface, force, and mounting.
This SAI upgrade features a new piston seal (two Y-shaped elements for low start-up pressure) and adds SAIL/BSAI lock variants. The -A rod is SUS420J2 stainless steel. With no -S magnet, this SKU cannot take a sensor.
Airtac SI200 Standard Cylinder SI200AX275 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX275 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX275 |
| Bore size | Ø200 mm |
| Stroke | 275 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 SAI200AX275 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 SAI200AX275 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 SI200AX275
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×275 | 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 SI200AX275 Is Used
Heavy Stamping
Drives large presses and stamping fixtures requiring 15708N push force at 0.5MPa with a 275mm stroke.
Mold Clamping
Secures heavy industrial molds on injection machinery using the robust 40mm carbon or SUS420J2 rod.
Pallet Handling
Indexes heavy loaded pallets in automated distribution hubs where high kinetic energy demands cushioning.
Replacing the Airtac SI200 Standard Cylinder SI200AX275 with the SAI200AX275
To replace the SI200AX275, order the SAI200AX275. Verify the ISO 15552 mounting, 275mm stroke, G3/4 port, and SUS420J2 stainless rod (-A). Sizing down, a 160mm bore gives 10053N [email protected]; sizing up is 200mm max. Note: a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock or SAIL/BSAI variant. At 275mm stroke, use guide rails to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX275
- ✓ 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 SI200AX275 FAQ
Yes, the SI200AX275 is discontinued. The direct replacement is the SAI200AX275. It matches the ISO 15552 mounting interface, 200mm bore, 275mm stroke, force, and G3/4 port.
It features a G3/4 port. Forces are: 15708N push and 15080N pull at 0.5MPa, 21991N push at 0.7MPa, 28274N push at 0.9MPa, and a theoretical max of 3204kgf at 1.0MPa. Speed is 30-500mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX275
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX275 replacement — usually within 7-8 hours.