This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX260S, 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 SI200AX260S
The AirTAC Airtac SI200 Standard Cylinder SI200AX260S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 260mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX260S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke260 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX260S
- 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 SI200AX260S
The AirTAC SI200AX260S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 260mm stroke. Delivering 15708N push force at 0.5MPa via a G3/4 port, it is replaced by the SAI200AX260S. This direct upgrade shares identical mounting, force, and stroke specs, fitting existing fixtures perfectly.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure and long life. This -A variant uses a SUS420J2 stainless rod, and the -S magnet works with CS1-B/DS1-B sensors. Note: cushions decelerate but do not hold load without air.
Airtac SI200 Standard Cylinder SI200AX260S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX260S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX260S |
| Bore size | Ø200 mm |
| Stroke | 260 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 SAI200AX260S 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 SAI200AX260S 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 SI200AX260S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×260 | 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 SI200AX260S Is Used
Heavy Press Operations
Drives large stamping and forming presses requiring up to 3204 kgf theoretical max force at 1.0 MPa.
Automated Plant Actuation
Actuates heavy-duty machinery and large-scale industrial doors operating at 30-500 mm/s speeds.
Replacing the Airtac SI200 Standard Cylinder SI200AX260S with the SAI200AX260S
To replace the SI200AX260S, order the SAI200AX260S. Confirm the ISO 15552 mounting interface, 200mm bore, 260mm stroke, G3/4 port, and your specific mounting accessory. The -S magnet enables CS1-B/DS1-B switches (the SAI uses current AirTAC switches), while the -A denotes the SUS420J2 stainless rod. Sizing both ways: the 160mm bore neighbor offers 10053N push at 0.5MPa, whereas this 200mm bore hits 21991N at 0.7MPa. A plain cylinder drifts on air loss—cushions only decelerate—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. At 260mm stroke, check side loads and use guides to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX260S
- ✓ 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 SI200AX260S FAQ
Yes, the SI200AX260S is discontinued. The direct replacement is the SAI200AX260S. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 260mm stroke, force, G3/4 port, and mounting interface.
It features a G3/4 port and delivers 15708N push / 15080N pull at 0.5 MPa, 21991N push at 0.7 MPa, 28274N push at 0.9 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. It operates at 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX260S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX260S replacement — usually within 7-8 hours.