Airtac SAID200 Double Rod Cylinder SAID200BX550
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX550 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 550mm 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
- Stroke550 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAID200 Double Rod Cylinder SAID200BX550
The AirTAC SAID200X550 is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty symmetrical actuation. Because a SUS304 stainless steel rod exits both end covers, the annulus area is identical on each side, yielding equal push and pull forces of 15079 N at 0.5 MPa. This through-rod architecture provides superior anti-rotation guidance and permits mounting a secondary cam or position flag on the rear extension.
Operating at 30-500 mm/s, this 200 mm bore unit utilizes PT tapered ports (G3/4) and adjustable air cushions at both ends to decelerate massive loads smoothly. The extruded aluminum barrel features dual sensor grooves, although this specific configuration ships without a magnet for standard switching.
Airtac SAID200 Double Rod Cylinder SAID200BX550 Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX550 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 550 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 SAID200BX550
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×550 | 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 SAID200BX550 Is Used
Symmetric-Force Transfer
Drives heavy industrial transfer carriages where equal push and pull power of 15079 N prevents directional stalling under high payload inertia.
Twin-Station Actuation
Simultaneously operates two separate tooling stations from a single piston, using the front rod for the primary work and the rear rod for secondary timing.
Anti-Rotation Slides
Keeps heavy guided loads perfectly aligned during the 550 mm stroke, as the double-rod construction resists torsional twisting better than single rods.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX550 the Right Cylinder?
Selecting the SAID200X550 is ideal when a mechanism requires massive bidirectional force matching exactly, stepping down from this class is the 160 mm bore which provides 9425 N at 0.5 MPa. The twin-rod design is chosen over a single-rod SAI when the application demands dual-side load guidance or a rear-rod drive output. Note that the adjustable cushion only decelerates the piston near stroke end; it does not hold the load. If position holding without live air pressure is required, specify a BSAID clamp-lock cylinder or an external pilot-operated check valve.
With a 550 mm stroke, the unsupported rod length is substantial, meaning external guide rails should be integrated to prevent rod-bearing bending under high side loads. This cylinder is dimensionally interchangeable per ISO 15552, offering a drop-in replacement for other ISO 15552 double-rod cylinders, utilizing mounting accessories from the SAID set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAID200BX550 FAQ
Because it is a double-rod cylinder, the effective piston area is identical on both sides. It provides an equal push and pull force of 15079 N at 0.5 MPa, and 21110 N at 0.7 MPa.
Yes, the SAID200X550 is dimensionally interchangeable per ISO 15552. It shares the exact mounting interface and footprint of other ISO 15552 profile cylinders, though it uses the SAID mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR.
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