Airtac SAID200 Double Rod Cylinder SAID200BX550S
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX550S 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 SAID200BX550S
The AirTAC SAID200X550-S is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty symmetrical motion. Because a stainless SUS304 rod exits both end covers, the annulus area is identical on both sides, yielding exactly 15079 N of output force at 0.5 MPa in both extend and retract directions. This through-rod design allows you to mount the primary workpiece on one end and a secondary cam, position flag, or sensor target on the opposite end. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports AirTAC CMSE reed and DMSE electronic solid-state switches for dual-side positioning. Adjustable air cushions at both ends decelerate the piston near stroke end to absorb kinetic energy. Note that a plain SAID does not hold its load when air pressure is lost; for fail-safe holding, consider the SAIL or BSAID clamp-lock variants.
Airtac SAID200 Double Rod Cylinder SAID200BX550S Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX550S |
|---|---|
| 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 SAID200BX550S
| 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 SAID200BX550S Is Used
Heavy-Duty Symmetric Press
Drives a large forming press where the front rod actuates the tooling and the rear rod moves a heavy counterbalance cam, utilizing the 15079 N equal both-way force at 0.5 MPa.
Twin-Station Transfer
Transfers heavy structural components across a dual-station machining cell, using the double-rod structure to maintain parallelism and prevent load rotation.
Anti-Rotation Sliding Gate
Actuates a massive industrial sliding gate where the through-rod design prevents binding and the SUS304 stainless rods withstand harsh environmental exposure.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX550S the Right Cylinder?
Selecting this 200mm bore model is ideal when your application requires massive equal bidirectional force and high resistance to torsional rotation. If your force requirements are lower, stepping down to the 160mm bore provides 9425 N at 0.5 MPa, but the 200mm bore is necessary for heavy transfers. The twin-rod architecture inherently resists side-load twisting better than a single-rod SAI cylinder, which is critical for guiding wide loads. Because this is a 550mm stroke, the unsupported rod length during extension increases the risk of rod-bearing bending; you must use an external guide rail to prevent premature seal wear and binding. The PT (tapered) port is G3/4, and mounting is limited to the SAID accessory set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). It is dimensionally interchangeable per ISO 15552, serving as a direct drop-in replacement for other ISO 15552 double-rod cylinders.
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 SAID200BX550S FAQ
Because the double-rod design has the same annulus area on both sides, the output force is identical in both directions: 15079 N at 0.5 MPa, 21110 N at 0.7 MPa, and 27141 N at 0.9 MPa.
It uses a reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552. The integrated -S magnet works with AirTAC CMSE reed and DMSE electronic switches mounted in the dual-side barrel grooves.
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