Airtac SAID200 Double Rod Cylinder SAID200BX275
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX275 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 275mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke275 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAID200 Double Rod Cylinder SAID200BX275
The AirTAC SAID200X275 is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty symmetrical motion. A single piston drives a rod out of both end covers, yielding an identical annulus area on each side. Consequently, extend and retract forces are perfectly equal, providing 15079 N of thrust and pull in both directions at 0.5 MPa.
This 200 mm bore unit features a robust 40 mm rod threaded M36x2, machined from SUS304 stainless steel (code B) for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Because the rear rod protrudes from the back cover, you must account for additional clearance behind the cylinder to accommodate the 275 mm stroke extension.
Airtac SAID200 Double Rod Cylinder SAID200BX275 Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX275 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 275 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / 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 | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID200 Double Rod Cylinder SAID200BX275
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×275 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAID200 Double Rod Cylinder SAID200BX275 Is Used
Symmetric Force Transfer
Ideal for heavy presses requiring identical push and pull forces, utilizing the equal annulus area to deliver 15079 N consistently in both directions.
Twin-Station Actuation
Drive two separate mechanisms simultaneously by mounting a primary tool on the front rod and a secondary actuator or position flag on the rear protruding rod.
Anti-Rotation Slides
The dual-rod design inherently resists torsional twist and provides superior load guidance, preventing the payload from rotating during heavy linear transfers.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX275 the Right Cylinder?
Select this 200 mm bore model when an application demands immense equal force both ways, as it generates 15079 N in each direction at 0.5 MPa. If your mechanism requires less thrust, stepping down to the 160 mm bore yields 9425 N both ways, whereas moving up is impossible within this series. Engineers choose the twin-rod architecture over a single-rod SAI when they need to mount a workpiece on the front rod extension and a cam, position flag, or secondary mechanism on the rear rod, simultaneously preventing load rotation.
This cylinder uses PT tapered port threads and operates at 30-500 mm/s. It does not hold its load when air pressure is lost; the piston will drift if the valve is centered or air is exhausted. For fail-safe position holding without live pressure, consider an external rod lock or the related BSAID clamp-lock cylinder. Since the 275 mm stroke is substantial, the long unsupported rod length increases the risk of side-load bending at the rod bearing; always use an external guide rail to support heavy loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAID200 Double Rod Cylinder SAID200BX275 FAQ
Because the double-rod design creates equal piston areas on both sides, it generates 15079 N of force in both extend and retract directions at 0.5 MPa, and 21110 N at 0.7 MPa.
Yes, it is dimensionally interchangeable per ISO 15552 and can serve as a drop-in replacement for other ISO 15552 double-rod profile cylinders, utilizing the standard Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting set.
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