This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX140, 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 SI200AX140
The AirTAC Airtac SI200 Standard Cylinder SI200AX140 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 140mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX140, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke140 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX140
- 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 SI200AX140
The AirTAC SI200AX140 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 140mm stroke. It delivers 15708 N of push force at 0.5 MPa through its G3/4 port. AirTAC replaced this legacy unit with the SAI200AX140, a direct replacement sharing the exact ISO 15552 mounting interface, M36x2 thread, and 50mm cushions.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SKU has an SUS420J2 stainless rod (option A) but lacks a magnet, so it cannot take CS1-B/DS1-B sensors. For load holding, note that cushions only decelerate; use an external rod lock or SAIL/BSAI variant.
Airtac SI200 Standard Cylinder SI200AX140 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX140 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX140 |
| Bore size | Ø200 mm |
| Stroke | 140 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 SAI200AX140 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 SAI200AX140 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 SI200AX140
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×140 | 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 SI200AX140 Is Used
Heavy Press Forming
Ideal for applying high linear clamping force in metal stamping and heavy press forming operations requiring 15708 N at 0.5 MPa.
Industrial Mold Clamping
Secures heavy industrial molds and fixtures in place during high-force manufacturing processes using its 3204 kgf maximum theoretical output.
Replacing the Airtac SI200 Standard Cylinder SI200AX140 with the SAI200AX140
To replace the discontinued SI200AX140, order the SAI200AX140. Confirm the ISO 15552 mounting fixture, the G3/4 port, and the M36x2 rod thread. This SKU has no magnet (-S), so it cannot accept position sensors. Because it is a plain cylinder, it will not hold a load without air; use a pilot check valve or the SAIL/BSAI lock variant for holding. Sizing down, the 160mm bore offers 10053 N push at 0.5 MPa; sizing up is not available. At 140mm stroke, side-load rod-bending stress is minimal, but ensure guide alignment to protect the 40mm rod.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX140
- ✓ 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 SI200AX140 FAQ
Yes, the AirTAC SI200AX140 is discontinued. The direct replacement is the SAI200AX140. It shares the exact ISO 15552 mounting interface, 200mm bore, 140mm stroke, output force, G3/4 port, and accessories, fitting directly into your existing fixtures.
The 200mm bore uses a G3/4 air port. It generates a push force of 15708 N and a pull force of 15080 N at 0.5 MPa. At 0.7 MPa push is 21991 N, at 0.9 MPa push is 28274 N, and the theoretical max force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX140
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX140 replacement — usually within 7-8 hours.