This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX95, 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 SI200BX95 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 95mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX95, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200BX95 is a discontinued double-acting ISO 15552 profile cylinder featuring a 200mm bore and 95mm stroke. Delivering 15708 N push force at 0.5 MPa through a G3/4 port, it is replaced by the SAI200BX95. This direct successor maintains the exact ISO 15552 mounting interface, bore, and output force.
The SAI200BX95 features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also adds SAIL and BSAI lock variants absent from the SI line. This specific SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors. For load holding, note the cushion only decelerates; use an external rod lock for safety.
| Model | Airtac SI200 Standard Cylinder SI200BX95 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX95 |
| Bore size | Ø200 mm |
| Stroke | 95 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 SAI200BX95 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 SAI200BX95 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. |
| ×95 | 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).
Drives large heavy-duty stamping dies requiring 15708 N push force at 0.5 MPa with stable 200mm bore guidance.
Positions heavy chassis components in automotive jigs using the 50mm adjustable air cushions to halt 95mm strokes.
To replace the SI200BX95, order the SAI200BX95, confirming the ISO 15552 interface, 200mm bore, 95mm stroke, and G3/4 port. This non-magnetic SKU cannot take a sensor; order a -S model if CS1-B/DS1-B switches are needed. Sizing both ways: a 160mm bore yields 10053 N push at 0.5 MPa, while a 200mm bore at 0.7 MPa yields 21991 N. For load holding on air loss, the cushion only decelerates; add an external pilot check valve or choose the SAIL/BSAI lock variant. The SUS304 stainless rod option suits corrosive settings.
Replacement checklist
Yes, the SI200BX95 is discontinued. The direct replacement is the SAI200BX95, which shares the same ISO 15552 mounting interface, 200mm bore, 95mm stroke, force, and G3/4 port.
It has a G3/4 port. Force ratings are: push 15708 N and pull 15080 N at 0.5 MPa, push 21991 N at 0.7 MPa, and a theoretical max of 3204 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX95 replacement — usually within 7-8 hours.