This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX60, 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 SI200AX60 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 60mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX60, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200AX60 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 60mm stroke. Delivering 15708 N push force at 0.5 MPa via a G3/4 port, this legacy unit is replaced by the SAI200AX60. The SAI upgrade is a direct retaining the exact interface, bore, stroke, force and mounting, but introduces an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. This SI200AX60 variant uses an SUS420J2 stainless steel rod (-A) for corrosion resistance. As a non-magnet SKU, it cannot accept position sensors.
The SAI family also adds variants the SI line lacked, such as the SAIL air-released lock and BSAI clamp-lock for load holding, plus the SAIF built-in valve. Note that a plain cylinder does not hold load without live air; the 50mm adjustable cushions only decelerate near stroke ends. For high-temperature environments, a Viton H seal option expands the -20 to +70 C range up to 150 C.
| Model | Airtac SI200 Standard Cylinder SI200AX60 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX60 |
| Bore size | Ø200 mm |
| Stroke | 60 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 SAI200AX60 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 SAI200AX60 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. |
| ×60 | 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).
Generates up to 3204 kgf at 1.0 MPa for driving large metal forming and heavy-duty stamping presses.
Secures large fabricated components during machining or welding using the SUS420J2 stainless rod option.
To replace the discontinued SI200AX60, order the SAI200AX60. Confirm the ISO 15552 mounting interface, the 200mm bore, the 60mm stroke, the G3/4 port, and your mounting accessories. Specify the -A rod code if you need the SUS420J2 stainless steel rod. Because this SKU lacks the -S magnet, it cannot support CS1-B or DS1-B sensors; order the magnet option if position sensing is required. For sizing, this bore provides 15708 N push at 0.5 MPa; if you need less force, a 160mm bore offers 10053 N. If the application requires load holding on air loss, do not rely on the cushions—select the SAIL or BSAI lock variant, or use an external pilot check valve.
Replacement checklist
Yes, the AirTAC SI200AX60 is discontinued. The direct replacement is the SAI200AX60. It is dimensionally interchangeable per ISO 15552, maintaining the same 200mm bore, 60mm stroke, output force, G3/4 port, and mounting interface.
This double-acting cylinder features a G3/4 port and delivers a push force of 15708 N and pull of 15080 N at 0.5 MPa. At 0.7 MPa push is 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 SAI200AX60 replacement — usually within 7-8 hours.