Airtac SAID200 Double Rod Cylinder SAID200BX75S
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAID200 Double Rod Cylinder SAID200BX75S
The AirTAC SAID200X75-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 200 mm bore and 75 mm stroke. Because the piston rod extends from both end covers, the effective annulus area is identical in both directions, yielding an equal extend and retract force of 15079 N at 0.5 MPa. This symmetric thrust is ideal for applications requiring perfectly balanced dual-side actuation.
Equipped with a magnetic piston (-S) for CMSE reed and DMSE electronic sensors, this unit incorporates SUS304 stainless steel rods (option B) for superior corrosion resistance. It features PT tapered port threads and adjustable air cushions at both ends to decelerate the heavy 200 mm payload smoothly near stroke extremes.
Airtac SAID200 Double Rod Cylinder SAID200BX75S Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 75 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 SAID200BX75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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 SAID200BX75S Is Used
Symmetric Force Pressing
Utilizes the equal 15079 N thrust in both directions for heavy-duty pressing and forming operations where the return stroke must deliver the same intense power as the extend stroke.
Dual-Station Actuation
Drives two separate mechanisms simultaneously by mounting tooling on both the front and rear SUS304 rod ends, maximizing cycle efficiency in large-scale automated lines.
Anti-Rotation Guiding
Leverages the double-rod structure to prevent piston rotation, providing highly stable linear guidance for heavy workloads without relying solely on external rails.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX75S the Right Cylinder?
Selecting this 200 mm bore double-rod cylinder is optimal when your mechanism requires massive, identical force in both travel directions (15079 N at 0.5 MPa), stepping up significantly from the 160 mm bore which provides 9425 N. The twin-rod architecture inherently resists torsional rotation better than a single-rod SAI, allowing you to mount a primary workpiece on the front rod and a cam or position flag on the rear rod. If the air supply is lost or the valve is centered, this plain cylinder cannot hold its load and will drift; for dead-air position holding, consider an external rod lock or the BSAID clamp-lock variant.
To guarantee a drop-in replacement, match the 200 mm bore, 75 mm stroke, PT port threads, and the required -S magnet. Mounting options are limited to the SAID subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting the FB, CA, CB, and CR styles used on single-rod SAI units). Because the rod protrudes from the rear cover, ensure you have adequate clearance behind the cylinder for the secondary rod end.
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 SAID200BX75S FAQ
Because it is a double-rod cylinder, the effective piston area is identical on both sides. It delivers an equal force of 15079 N in both the extend and retract directions at 0.5 MPa (21110 N at 0.7 MPa).
Yes, the SAID200X75-S is dimensionally interchangeable per ISO 15552 standards. You can use it as a drop-in replacement for other ISO 15552 double-rod profile cylinders by matching the 200 mm bore, 75 mm stroke, and mounting dimensions.
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