This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX75SH, 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 SI200BX75SH
The AirTAC SI200 Standard Cylinder SI200BX75SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX75SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX75SH
- 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 SI200BX75SH
The AirTAC SI200BX75SH is a discontinued double-acting ISO 15552 profile cylinder featuring a 200mm bore, 75mm stroke, and a SUS304 stainless steel rod. Delivering 15708 N of push force at 0.5 MPa, it is replaced by the SAI200BX75SH. This direct upgrade retains the exact ISO 15552 mounting interface, G3/4 port, and force class, while adding an upgraded piston seal with two Y-shaped elements for low start-up pressure.
This -SH configuration includes a Viton H seal for 0-150 C environments and a piston magnet for legacy CS1-B/DS1-B sensors. Note that the cushion only decelerates; for load holding, use an external rod lock or the SAIL/BSAI lock variants.
Airtac SI200 Standard Cylinder SI200BX75SH Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX75SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX75SH |
| Bore size | Ø200 mm |
| Stroke | 75 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 SAI200BX75SH 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 SAI200BX75SH 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 SI200BX75SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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 SI200BX75SH Is Used
Heavy Press Clamping
Generates 21991 N at 0.7 MPa to secure large steel plates during machining, utilizing the SUS304 rod for corrosion resistance in oily environments.
High-Force Stamping
Delivers 15708 N push force at 0.5 MPa for forming heavy-gauge components, with adjustable 50 mm cushions absorbing end-of-stroke impact.
Hot-End Actuation
The Viton H seal allows operation up to 150 C, making it suitable for positioning parts near ovens or drying tunnels without seal degradation.
Replacing the Airtac SI200 Standard Cylinder SI200BX75SH with the SAI200BX75SH
To replace the SI200BX75SH, order the SAI200BX75SH and verify your ISO 15552 mounting interface, G3/4 port, and M36x2 rod thread. The SAI family adds SAIL (air-released lock), SAIF (built-in 4M valve), and BSAI (clamp-lock) variants the SI lacked. If downsizing, the 160mm bore offers 10053 N push at 0.5 MPa; if upsizing, note the 200mm bore is the largest available. Because this is a plain double-acting cylinder, it will not hold a load without live air—the cushion only decelerates. For suspended loads, specify an external pilot check valve, a rod lock, or the SAIL/BSAI variant. The -S magnet works with legacy CS1-B/DS1-B switches, while the SAI uses current AirTAC sensors. The -H Viton seal supports 0-150 C, and the -B SUS304 rod provides corrosion resistance.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX75SH
- ✓ 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 SI200BX75SH FAQ
Yes, the SI200BX75SH is discontinued. The direct replacement is the SAI200BX75SH. It shares the same ISO 15552 mounting interface, 200mm bore, 75mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
It features a G3/4 port and provides 15708 N push / 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. The speed range is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX75SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX75SH replacement — usually within 7-8 hours.