This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX220S, 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 SI200BX220S
The AirTAC SI200 Standard Cylinder SI200BX220S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 220mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX220S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke220 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX220S
- 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 SI200BX220S
The AirTAC SI200BX220S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 220mm stroke, delivering 15708 N push force at 0.5 MPa. It features a SUS304 stainless piston rod (-B), a G3/4 air port, and a built-in magnet (-S) for CS1-B/DS1-B sensors. The direct replacement is the SAI200BX220S, matching the exact ISO 15552 mounting interface, bore, stroke, force, port and accessories.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note that a plain cylinder drifts on air loss; for load holding, use the SAIL or BSAI lock variants, or an external pilot check valve.
Airtac SI200 Standard Cylinder SI200BX220S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX220S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX220S |
| Bore size | Ø200 mm |
| Stroke | 220 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 SAI200BX220S 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 SAI200BX220S 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 SI200BX220S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×220 | 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 SI200BX220S Is Used
Heavy Press Stamping
Drives large metal forming presses requiring 15708 N of thrust at 0.5 MPa to shape thick steel plates.
Pallet Lifting Station
Actuates heavy-duty vertical lifts for 801 kg loads, utilizing the SUS304 rod for corrosion resistance in humid warehouses.
Mold Clamping Fixture
Secures large injection molds via the ISO 15552 mounting interface, relying on 28274 N force at 0.9 MPa for rigid holding.
Replacing the Airtac SI200 Standard Cylinder SI200BX220S with the SAI200BX220S
To replace the discontinued SI200BX220S, order the SAI200BX220S. Confirm the ISO 15552 mounting interface, the 200mm bore, 220mm stroke, G3/4 port, and the -S magnet for current AirTAC switches. If downsizing, a 160mm bore yields 10053 N push at 0.5 MPa; if upsizing is impossible, this 200mm bore hits 21991 N at 0.7 MPa. Because stroke exceeds 300mm, ensure guide rails to prevent rod bending under side loads. The standard cushion only decelerates; it does not hold load on air loss, so specify a SAIL lock or external rod lock for vertical safety.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX220S
- ✓ 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 SI200BX220S FAQ
Yes, the SI200BX220S is discontinued. The direct replacement is the SAI200BX220S. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 220mm stroke, 15708 N force, G3/4 port, and mounting interface.
The G3/4 ported cylinder delivers a push of 15708 N and pull of 15080 N at 0.5 MPa. At 0.7 MPa push is 21991 N, and 28274 N at 0.9 MPa. The theoretical max force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX220S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX220S replacement — usually within 7-8 hours.