Airtac SAID200 Double Rod Cylinder SAID200BX185
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX185 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 185mm 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
- Stroke185 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAID200 Double Rod Cylinder SAID200BX185
The AirTAC SAID200X185 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 200 mm bore and 185 mm stroke. Because a SUS304 stainless steel rod exits both ends, the annulus area is identical on both sides, yielding an equal 15079 N of force in both extend and retract directions at 0.5 MPa. This symmetric output is ideal for mechanisms requiring balanced push and pull dynamics.
The through-rod design allows mounting a primary workpiece on one end while attaching a position flag, cam, or secondary tool to the rear rod end. It provides superior anti-rotation guidance compared to single-rod actuators. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement, and the unit uses PT tapered port threads.
Airtac SAID200 Double Rod Cylinder SAID200BX185 Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX185 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 185 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 SAID200BX185
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×185 | 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 SAID200BX185 Is Used
Symmetric Force Transfer
Drives heavy-duty presses and forming stations where the 15079 N output must remain identical in both directions to maintain process stability.
Twin-Station Actuation
Uses the through-rod to operate a secondary mechanism or tool from the rear end cover while the primary load is guided on the front rod.
Anti-Rotation Slides
Keeps heavy workpiece carriers guided against rotational torque better than a single-rod SAI cylinder of the same footprint.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX185 the Right Cylinder?
Choose this 200 mm bore when an application demands massive symmetric force, stepping up from a 160 mm bore that provides 9425 N both ways at 0.5 MPa. The double-rod architecture is selected over a single-rod SAI when the mechanism requires dual-side guidance, anti-rotation stability, or rear-rod actuation. The 20 mm rod diameter and M36x2 thread provide a robust interface for heavy loads, though an 185 mm stroke still necessitates checking side-load conditions.
This cylinder serves as a dimensionally interchangeable drop-in replacement for other ISO 15552 double-rod cylinders. It uses a reduced mounting accessory set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Note that the adjustable air cushions at both ends decelerate the piston near stroke end but do not hold the load; if position holding without live pressure is required, use a SAIL lock, BSAID clamp-lock, or external rod lock. As no magnet is specified, it cannot use CMSE or DMSE 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 SAID200BX185 FAQ
Because the rod area is subtracted on both sides, the SAID200X185 provides an equal force of 15079 N in both extend and retract directions at 0.5 MPa, reaching 21110 N at 0.7 MPa.
Yes, the SAID200X185 is dimensionally interchangeable per ISO 15552 mounting interface dimensions. It serves as a drop-in replacement for other ISO 15552 double-rod profile cylinders.
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