Airtac SAID200 Double Rod Cylinder SAID200BX20S
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 20mm 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
- Stroke20 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAID200 Double Rod Cylinder SAID200BX20S
The AirTAC SAID200X20-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 200 mm bore and a 20 mm stroke. Because a rod exits both end covers, the annular piston area is identical on extend and retract, yielding an equal 15079 N of force in each direction at 0.5 MPa. The -S suffix indicates an embedded magnet compatible with AirTAC CMSE reed and DMSE solid-state sensors, which ride in the dual extruded barrel grooves.
This specific configuration uses a SUS304 stainless steel rod for superior corrosion resistance and PT tapered port threads. The rear rod protrusion allows engineers to mount a secondary cam, position flag, or separate mechanism on the opposite end while driving the primary load on the front. It shares the exact footprint of the single-rod SAI but omits the FB, CA, CB, and CR mounting variants, supporting only Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAID200 Double Rod Cylinder SAID200BX20S Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 20 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 SAID200BX20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×20 | 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 SAID200BX20S Is Used
Symmetric Stamping
Drives a 200 mm bore press tool on the front rod while a rear rod simultaneously actuates a heavy-duty ejection mechanism, utilizing equal 15079 N force both directions.
Anti-Rotation Transfer
Moves large structural panels between stations. The twin 40 mm SUS304 rods provide torsional rigidity, preventing the heavy load from twisting during transit.
Dual-Side Sensing
Uses the -S magnet with DMSE solid-state sensors in the barrel grooves to track the 20 mm stroke, while the rear rod physically trips a mechanical flag for redundancy.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX20S the Right Cylinder?
Select this 200 mm bore when an application demands immense symmetric thrust (15079 N both ways at 0.5 MPa, scaling to 27141 N at 0.9 MPa) within a short 20 mm stroke. If your mechanism only requires force in one direction, the standard single-rod SAI is more compact; however, choose this SAID twin-rod design when you need dual-side guidance to prevent rotation, or when a rear rod is needed to trip a limit switch. Note that a plain SAID does not hold its position if air pressure is lost—use a BSAID clamp-lock or an external pilot-operated check valve for fail-safe load holding.
For dimensioning, this cylinder uses a G3/4 PT port and a 40 mm rod. Even with a short 20 mm stroke, the massive 40 mm rod thread handles high side loads, though external guides are still recommended for heavy off-center masses. It serves as a drop-in replacement for any ISO 15552 double-rod cylinder without relying on specific brand cross-references.
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 SAID200BX20S FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the push and pull forces are equal. It generates 15079 N at 0.5 MPa, 21110 N at 0.7 MPa, and 27141 N at 0.9 MPa in both directions.
Yes. The SAID200X20-S is built to the ISO 15552 profile standard, making it dimensionally interchangeable with other ISO 15552 double-rod cylinders. It uses PT tapered G3/4 ports and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mountings.
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