Airtac SAID200 Double Rod Cylinder SAID200BX800
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX800 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAID200 Double Rod Cylinder SAID200BX800
The AirTAC SAID200X800 is a double-acting, double-rod ISO 15552 profile cylinder featuring a substantial 800 mm stroke. Because the twin rods occupy both sides of the piston, the effective annulus area is identical in each direction. This yields a perfectly symmetrical output of 15079 N both ways at 0.5 MPa, ensuring balanced velocity and thrust without the asymmetry found in single-rod actuators.
This specific configuration uses a SUS304 stainless steel rod (code B) for superior corrosion resistance and features PT tapered port threads. A rod protrudes from both end covers, allowing engineers to mount the primary workpiece on one end and a secondary cam, position flag, or guidance mechanism on the rear. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac SAID200 Double Rod Cylinder SAID200BX800 Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX800 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 800 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 SAID200BX800
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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 SAID200BX800 Is Used
Symmetric Heavy Transfer
Drives large machining fixtures with exactly 15079 N of thrust in both extend and retract directions, ensuring perfectly balanced heavy-load positioning.
Twin-Station Actuation
Uses both rod ends to operate two synchronized mechanisms simultaneously from a single piston, maximizing mechanical output without adding extra valves.
Anti-Rotation Guiding
Leverages the dual-rod geometry to maintain strict load orientation across the 800 mm stroke, preventing torsional deflection on long linear slides.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX800 the Right Cylinder?
Choose this 200 mm bore actuator when an application demands massive equalized bi-directional force and high resistance to rotational torque. If you require less force, stepping down to the 160 mm bore yields 9425 N each way at 0.5 MPa, but the 200 mm bore is necessary for heavy symmetric transfer tasks. Unlike a single-rod SAI, this double-rod design prevents piston drift-induced rotation and supports twin-station actuation.
At an 800 mm stroke, the unsupported rod length is significant; the 40 mm rod diameter and M36x2 thread handle high structural loads, but you must use an external guide to prevent rod-bearing bending and side-load damage. Remember that a plain SAID does not hold its position when air is lost—the adjustable air cushions only decelerate the piston near stroke ends, so use a SAIL lock or external rod lock for fail-safe holding. This model is dimensionally interchangeable per ISO 15552 and uses the reduced SAID mounting 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 SAID200BX800 FAQ
Because the double-rod design creates equal annulus areas on both sides, it provides 15079 N of force in both extend and retract directions at 0.5 MPa, and 21110 N at 0.7 MPa.
Yes, the SAID200X800 is dimensionally interchangeable per ISO 15552. It uses a standard PT G3/4 port and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mountings, though it omits FB, CA, CB, and CR accessories.
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