This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX140S, 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 SI200BX140S
The AirTAC SI200 Standard Cylinder SI200BX140S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 140mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX140S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke140 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX140S
- 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 SI200BX140S
The AirTAC SI200BX140S is a discontinued double-acting ISO 15552 profile cylinder featuring a 200 mm bore, 140 mm stroke, and a SUS304 stainless piston rod. Delivering 15708 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI200BX140S. This direct successor shares identical ISO 15552 mounting dimensions, bore, and output, fitting existing fixtures perfectly.
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 in the SI line. Your -S suffix indicates a piston magnet for legacy CS1-B/DS1-B sensors; the SAI replacement uses current AirTAC switches.
Airtac SI200 Standard Cylinder SI200BX140S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX140S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX140S |
| Bore size | Ø200 mm |
| Stroke | 140 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 SAI200BX140S 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 SAI200BX140S 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 SI200BX140S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×140 | 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 SI200BX140S Is Used
Heavy Stamp Pressing
Drives large heavy-duty stamping dies requiring 15708 N of push force at 0.5 MPa, utilizing the robust 40 mm SUS304 rod for high rigidity.
Industrial Material Lifts
Actuates massive 200 mm bore lift platforms where the G3/4 port and 50 mm cushions manage rapid 30-500 mm/s descent speeds safely.
Replacing the Airtac SI200 Standard Cylinder SI200BX140S with the SAI200BX140S
To replace the SI200BX140S, order the SAI200BX140S. Confirm the ISO 15552 mounting interface, 200 mm bore, 140 mm stroke, G3/4 port, and your specific mounting accessory. The -S magnet and -B SUS304 rod material must be specified on the new order. If sizing alternatives, a 160 mm bore yields 10053 N push at 0.5 MPa, while a 200 mm bore at 0.7 MPa provides 21991 N. Remember, a plain cylinder drifts without live air; the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant. For this 140 mm stroke, standard guides handle side loads easily.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX140S
- ✓ 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 SI200BX140S FAQ
Yes, the AirTAC SI200BX140S is discontinued. The direct replacement is the SAI200BX140S. It shares the same ISO 15552 mounting interface, 200 mm bore, 140 mm stroke, G3/4 port, and output force, fitting existing fixtures perfectly.
The G3/4 port feeds a 40 mm rod. At 0.5 MPa it pushes 15708 N and pulls 15080 N. Push force is 21991 N at 0.7 MPa, 28274 N at 0.9 MPa, with a theoretical max of 3204 kgf at 1.0 MPa. The cushion stroke is 50 mm.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX140S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX140S replacement — usually within 7-8 hours.