Airtac SAID200 Double Rod Cylinder SAID200BX325
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX325 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 325mm 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
- Stroke325 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAID200 Double Rod Cylinder SAID200BX325
The AirTAC SAID200X325 is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty symmetrical motion. Because a rod exits both ends, the annulus area is identical on extend and retract, yielding exactly 15079 N of force each way at 0.5 MPa. This 325 mm stroke configuration features a SUS304 stainless steel rod (code B) for superior corrosion resistance and utilizes PT tapered port threads.
A single piston drives both rod ends, allowing you to mount a primary workpiece on the front and a cam, position flag, or secondary tool on the rear. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. Note that the through-rod design requires additional rear clearance compared to a single-rod SAI cylinder.
Airtac SAID200 Double Rod Cylinder SAID200BX325 Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX325 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 325 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 SAID200BX325
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×325 | 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 SAID200BX325 Is Used
Heavy-Duty Symmetric Pressing
Provides an equal 15079 N clamping force on both extend and retract strokes, ensuring consistent high-tonnage pressing without force imbalance.
Dual-Station Transfer
Mounts workpieces on both rod ends to simultaneously load and unload two separate stations, cutting cycle time in half for large-scale automated lines.
Anti-Rotation Guiding
The twin-rod geometry resists torsional twisting under heavy offset loads, maintaining precise alignment for large tooling plates during transit.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX325 the Right Cylinder?
Selecting this 200 mm bore cylinder is ideal when an application demands massive equal bidirectional force and high anti-rotation stability. If your mechanism requires less push/pull force, stepping down to the 160 mm bore drops the both-directions output to 9425 N at 0.5 MPa. Because the 325 mm stroke exceeds 300 mm, the long unsupported rod span increases susceptibility to side-load bending; always utilize an external guide to prevent premature rod-bearing wear.
A double-rod design is chosen over a single-rod SAI when you need dual-side actuation or rear-end sensing. Keep in mind the adjustable air cushions only decelerate the piston near stroke end; they do not hold the load. If air pressure is lost, the cylinder will drift, requiring an external pilot-operated check valve or a BSAID clamp-lock for true position holding. For ISO 15552 drop-in replacement, verify the 325 mm stroke, G3/4 port, mounting accessory (Basic, FA, LB, TC, FTC, TCM1, or TCM2), and magnet requirement.
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 SAID200BX325 FAQ
Because it is a double-rod cylinder, the effective piston area is the same in both directions. It provides exactly 15079 N of force on both extend and retract at 0.5 MPa, and 21110 N at 0.7 MPa.
Yes, the SAID200X325 is dimensionally interchangeable per ISO 15552. It uses a standard mounting interface (Basic, FA, LB, TC, FTC, TCM1, TCM2) and a G3/4 port, making it a drop-in replacement for other ISO 15552 profile cylinders, though rear rod clearance must be accommodated.
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