This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX100S, 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 SI200BX100S
The AirTAC Airtac SI200 Standard Cylinder SI200BX100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 100mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX100S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke100 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX100S
- 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 SI200BX100S
The AirTAC SI200BX100S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 100 mm stroke. It delivers 15708 N push and 15080 N pull at 0.5 MPa through a G3/4 port. The direct replacement is the SAI200BX100S, which matches the exact ISO 15552 mounting interface, bore, stroke, force, port and accessories.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL, SAIF and BSAI variants the SI lacked. This unit has the -B SUS304 stainless rod and -S magnet for CS1-B/DS1-B switches.
Airtac SI200 Standard Cylinder SI200BX100S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX100S |
| Bore size | Ø200 mm |
| Stroke | 100 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 SAI200BX100S 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 SAI200BX100S 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 SI200BX100S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×100 | 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 SI200BX100S Is Used
Heavy Press Clamping
Generates up to 21991 N at 0.7 MPa to secure large structural components during machining or welding operations.
Mold Ejection Systems
Utilizes the 40 mm SUS304 stainless rod to push heavy injection molds out of the press without corrosion risk.
Replacing the Airtac SI200 Standard Cylinder SI200BX100S with the SAI200BX100S
To replace the SI200BX100S, order the SAI200BX100S. Confirm the ISO 15552 mounting interface, 200 mm bore, 100 mm stroke, G3/4 port (PT/G/NPT thread options), and your specific mounting accessory. The -S magnet enables current AirTAC switches (legacy CS1-B/DS1-B), and the -B rod is SUS304 stainless steel. If downsizing, a 160 mm bore yields 10053 N push at 0.5 MPa; if upsizing is impossible, note the 3204 kgf max at 1.0 MPa. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for held loads. Since stroke is 100 mm, side-load risks are low, but always guide the load to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX100S
- ✓ 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 SI200BX100S FAQ
Yes, the SI200BX100S is discontinued. The direct replacement is the SAI200BX100S. It is dimensionally interchangeable per ISO 15552, matching the 200 mm bore, 100 mm stroke, output force, G3/4 port, and mounting interface for a seamless fixture swap.
At 0.5 MPa it pushes 15708 N and pulls 15080 N. At 0.7 MPa push is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical max is 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s, the rod is 40 mm with an M36x2 thread, and cushion travel is 50 mm.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX100S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX100S replacement — usually within 7-8 hours.