Airtac SAID200 Double Rod Cylinder SAID200BX250S
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX250S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAID200 Double Rod Cylinder SAID200BX250S
The AirTAC SAID200X250-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 200 mm bore and 250 mm stroke. Because a SUS304 stainless steel rod exits both end covers, the annulus area is identical on both sides, yielding equal extend and retract force of 15079 N at 0.5 MPa. It includes a magnet for position sensing and uses a PT G3/4 port.
This through-rod design allows you to mount the primary workpiece on one end and a position flag, cam, or secondary mechanism on the rear rod. The twin-rod architecture provides superior anti-rotation guidance compared to a single-rod SAI, while the extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
Airtac SAID200 Double Rod Cylinder SAID200BX250S Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX250S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 250 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 SAID200BX250S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×250 | 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 SAID200BX250S Is Used
Symmetric Pressing
Drives heavy stamping or forming tools where equal 15079 N force is required on both the extend and retract strokes to maintain precise tool alignment.
Dual-Side Transfer
Actuates a mechanism on the front rod end while simultaneously driving a synchronized secondary assembly or position flag on the rear protruding rod.
Anti-Rotation Slides
Guides heavy structural loads along a linear path using the twin-rod architecture to prevent torsional rotation without external guide rails.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX250S the Right Cylinder?
Select this 200 mm bore model when an application demands massive bidirectional force (15079 N at 0.5 MPa, up to 27141 N at 0.9 MPa) and strict symmetry. If your load requires less push, stepping down to the 160 mm bore drops the both-way output to 9425 N at 0.5 MPa. Choose the double-rod SAID over a single-rod SAI when you need dual-side guidance, anti-rotation stability, or rear-rod actuation. For stroke lengths of 300 mm or more, external guides are recommended to prevent rod-bearing bending under heavy side loads.
This cylinder is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 double-rod cylinders. It uses the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR variants. Note that a plain SAID does not hold its position if air pressure is lost; for load-holding without live pressure, consider an external rod lock, a SAIL, or a BSAID clamp-lock cylinder. The -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors.
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 SAID200BX250S FAQ
Because the double-rod design creates equal annulus areas on both sides, the output force is identical in both directions. It provides 15079 N at 0.5 MPa, 21110 N at 0.7 MPa, and 27141 N at 0.9 MPa.
Yes, it is dimensionally interchangeable per ISO 15552. It supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, but omits the FB, CA, CB, and CR variants which are restricted to single-rod SAI cylinders.
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