Airtac SAID200 Double Rod Cylinder SAID200BX240S
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX240S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 240mm 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
- Stroke240 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAID200 Double Rod Cylinder SAID200BX240S
The AirTAC SAID200X240-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 200 mm bore and 240 mm stroke. Because the twin SUS304 stainless steel rods occupy both sides of the piston, the effective annulus area is identical in extend and retract. This yields a perfectly symmetric output of 15079 N each way at 0.5 MPa, eliminating the force disparity found in single-rod units. The included magnet enables position feedback.
A rod exits both end covers, allowing you to mount the primary workpiece on one end and a position flag, cam, or secondary mechanism on the rear. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE solid-state switches. Adjustable air cushions at both ends absorb kinetic energy, though they do not lock the piston if air pressure is lost.
Airtac SAID200 Double Rod Cylinder SAID200BX240S Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX240S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 240 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 SAID200BX240S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×240 | 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 SAID200BX240S Is Used
Twin-Station Actuation
Drives two separate mechanisms simultaneously from a single piston, using the front rod for the primary workpiece and the rear rod for a secondary synchronized tool.
Symmetric-Force Transfer
Handles heavy payloads requiring identical push and pull forces, ensuring consistent deceleration and acceleration without the speed variations typical of single-rod cylinders.
Anti-Rotation Slides
Keeps massive guided loads from twisting under high torque, using the dual stainless steel rods as a rigid linear frame to maintain strict parallelism.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX240S the Right Cylinder?
Choose this 200 mm bore cylinder when an application demands immense bidirectional force and high anti-rotation resistance. If 15079 N at 0.5 MPa is excessive, stepping down to the 160 mm bore yields 9425 N both ways. The SAID200X240-S is selected here for its specific 240 mm stroke and PT tapered port threads. Unlike the single-rod SAI, this double-rod variant provides dual-side guidance to keep heavy loads from twisting.
For strokes of 300 mm or longer, an external guide is recommended to prevent rod-bearing bending under high side loads. This unit 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 accessories reserved for single-rod SAI models.
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 SAID200BX240S FAQ
The output force is equal in both directions due to the double-rod design. It delivers 15079 N at 0.5 MPa, 21110 N at 0.7 MPa, and 27141 N at 0.9 MPa.
No, a plain SAID cylinder drifts when air is exhausted or a valve is centered. The adjustable air cushions only decelerate the piston near stroke ends; they do not lock the load. For position holding, consider a SAIL, BSAID, or an external rod lock.
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