This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX175S, 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 SI200BX175S
The AirTAC SI200 Standard Cylinder SI200BX175S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 175mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX175S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke175 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX175S
- 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 SI200BX175S
The AirTAC SI200BX175S is a discontinued double-acting ISO 15552 profile cylinder featuring a 200mm bore and 175mm stroke. Built with an extruded aluminum barrel and a SUS304 stainless piston rod, it delivers 15708 N of push force at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI200BX175S, a direct upgrade sharing the exact ISO 15552 mounting interface, bore, and output force.
The SAI replacement introduces an upgraded piston seal utilizing two Y-shaped one-way elements for extended lifespan and lower start-up pressure. Note that a standard cylinder drifts without live air; for load holding, explore the SAIL or BSAI lock variants, or utilize an external pilot check valve.
Airtac SI200 Standard Cylinder SI200BX175S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX175S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX175S |
| Bore size | Ø200 mm |
| Stroke | 175 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 SAI200BX175S 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 SAI200BX175S 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 SI200BX175S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×175 | 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 SI200BX175S Is Used
Heavy Press Systems
Drives large forming and stamping presses requiring 21991 N of push force at 0.7 MPa to mold dense industrial materials.
Large Mold Handling
Actuates 200mm bore clamping arms to position heavy injection molds, relying on the 50mm adjustable cushion for smooth stops.
Replacing the Airtac SI200 Standard Cylinder SI200BX175S with the SAI200BX175S
To replace the discontinued SI200BX175S, order the SAI200BX175S. Verify your ISO 15552 mounting interface (LB, FA, TC, etc.), the 175mm stroke, the G3/4 port, and the built-in magnet for CS1-B/DS1-B switches. If downsizing, a 160mm bore yields 10053 N push at 0.5 MPa; if upsizing is required, you are already at the maximum standard bore. Because this cylinder handles heavy loads, remember the air cushion only decelerates near stroke end—it does not hold the load on air loss. For secure load holding, specify the SAIL air-released lock, the BSAI clamp-lock, or an external rod lock. The -B rod material provides SUS304 stainless steel corrosion resistance over the standard carbon steel.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX175S
- ✓ 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 SI200BX175S FAQ
Yes, the SI200BX175S is discontinued. The direct replacement is the SAI200BX175S. It shares the identical ISO 15552 mounting interface, 200mm bore, 175mm stroke, output force, and G3/4 port, fitting directly into existing fixtures.
The G3/4 port supplies a push force of 15708 N and a pull force of 15080 N at 0.5 MPa. At 0.7 MPa, the push force is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX175S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX175S replacement — usually within 7-8 hours.