This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX80, 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 SI200BX80
The AirTAC Airtac SI200 Standard Cylinder SI200BX80 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX80, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX80
- 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 SI200BX80
The AirTAC SI200BX80 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke and 200 mm bore, delivering 15708 N push force at 0.5 MPa. It features a 40 mm carbon steel rod, M36x2 thread, and a 50 mm adjustable air cushion at each end. The direct replacement is the SAI200BX80, which matches the G3/4 port and ISO 15552 mounting interface exactly.
This SKU lacks a magnet and cannot accept a sensor. For load holding, note that air cushions only decelerate; use an external rod lock or pilot check valve, or choose the SAIL/BSAI lock variant. The SAI upgrade uses two Y-shaped piston seals for low start-up pressure.
Airtac SI200 Standard Cylinder SI200BX80 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX80 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX80 |
| Bore size | Ø200 mm |
| Stroke | 80 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 SAI200BX80 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 SAI200BX80 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 SI200BX80
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×80 | 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 SI200BX80 Is Used
Heavy Press Tonnage
Drives large stamping and forming presses requiring up to 28274 N of thrust at 0.9 MPa, utilizing the 50 mm adjustable cushion to absorb massive kinetic energy.
Automotive Assembly Jigs
Actuates heavy-duty positioning fixtures on vehicle production lines, where the 200 mm bore delivers the high force needed to clamp large chassis components securely.
Massive Platen Lowering
Controls the vertical descent of industrial platens weighing up to 801 kg, relying on precise pressure regulation and external load-holding valves for safety.
Replacing the Airtac SI200 Standard Cylinder SI200BX80 with the SAI200BX80
To replace the SI200BX80, order the SAI200BX80 to retain the identical ISO 15552 mounting interface, 200 mm bore, 80 mm stroke, and G3/4 port. Because this specific SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; if position feedback is needed, select a magnet-equipped SAI model. For sizing alternatives, dropping to a 160 mm bore yields 10053 N push at 0.5 MPa, while staying at 200 mm provides 21991 N at 0.7 MPa. Remember that a standard cylinder drifts without live air—cushions only decelerate—so for suspended loads use an external pilot check valve or the BSAI clamp-lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX80
- ✓ 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 SI200BX80 FAQ
Yes, the SI200BX80 is discontinued. The direct replacement is the AirTAC SAI200BX80. It is dimensionally interchangeable per ISO 15552, retaining the same 200 mm bore, 80 mm stroke, 15708 N output force, G3/4 port, and mounting accessories.
The G3/4 port feeds a 40 mm rod. At 0.5 MPa it provides 15708 N push and 15080 N pull. At 0.7 MPa push 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 SAI200BX80
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX80 replacement — usually within 7-8 hours.