This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX10, 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.

The AirTAC Airtac SI200 Standard Cylinder SI200AX10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 10mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX10, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200AX10 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 10 mm stroke, delivering 15708 N push force at 0.5 MPa through its G3/4 port. AirTAC replaced it with the SAI200AX10, a direct upgrade retaining the exact ISO 15552 mounting interface, M36x2 rod thread, and 3204 kgf maximum force. Because this specific SKU lacks the -S magnet suffix, it cannot accept a position sensor.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent from the legacy SI line.
| Model | Airtac SI200 Standard Cylinder SI200AX10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX10 |
| Bore size | Ø200 mm |
| Stroke | 10 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 SAI200AX10 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200AX10 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×10 | 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).
Ideal for short-stroke high-force pressing, delivering 15708 N at 0.5 MPa to seat large bearings or form heavy gauge metal components securely.
Provides immense clamping power for holding massive workpieces stationary during machining or welding, utilizing the full 3204 kgf theoretical maximum at 1.0 MPa.
Functions as a robust ejection cylinder in heavy industrial molding, using its 50 mm adjustable air cushions to decelerate the 40 mm rod safely at stroke end.
To replace the SI200AX10, order the SAI200AX10. Verify your ISO 15552 mounting fixtures, the G3/4 air port, and the SUS420J2 stainless steel rod (indicated by the -A suffix). This non-magnetized SKU cannot support legacy CS1-B/DS1-B sensors, so no switch is fitted. If sizing up or down, note the 160 mm bore yields 10053 N at 0.5 MPa, while the 200 mm bore reaches 21991 N at 0.7 MPa. For load holding on air loss, a plain cylinder drifts; the cushion only decelerates. Use an external pilot check valve or the SAIL/BSAI lock variants for secure holding.
Replacement checklist
Yes, the SI200AX10 is discontinued. The direct replacement is the SAI200AX10. It shares the identical ISO 15552 mounting interface, 200 mm bore, 10 mm stroke, G3/4 port, and force ratings, fitting directly into your existing fixtures.
This 200 mm bore cylinder features a G3/4 port and delivers 15708 N push and 15080 N pull at 0.5 MPa. At 0.7 MPa it pushes 21991 N, and 28274 N at 0.9 MPa. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX10 replacement — usually within 7-8 hours.