
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX70S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 70mm 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.
The AirTAC SAID200X70-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 200 mm bore and 70 mm stroke. Because a rod exits both ends, the annulus area is identical on extend and retract, yielding exactly 15079 N of force each way at 0.5 MPa. This through-rod design is equipped with a -S magnet for position sensing and uses SUS304 stainless steel rods for superior corrosion resistance.
It features adjustable air cushions at both ends to decelerate the piston near stroke end. The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE electronic switches. Remember that the cushion only slows the piston; it does not hold the load if air pressure drops.
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX70S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 70 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.
| 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.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×70 | 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.
Utilizes the equal 15079 N extend and retract force for heavy-duty pressing and forming operations that require consistent power in both motion directions.
Drives two separate mechanisms simultaneously by mounting a primary workpiece on the front rod end and a secondary tool or flag on the rear rod end.
Leverages the dual-rod structure to keep heavy loads perfectly guided and prevent rotational twisting during vertical or horizontal transfer.
Select this 200 mm bore model when an application requires massive symmetric force, as it provides 15079 N in both directions at 0.5 MPa. If your mechanism needs slightly less push or pull, stepping down to a 160 mm bore yields 9425 N each way. The twin-rod architecture is chosen over a single-rod SAI when you need dual-side guidance to prevent rotation, or when a rear cam and a front tool must be actuated simultaneously.
This cylinder uses PT tapered port threads and a G3/4 port. It is dimensionally interchangeable per ISO 15552 for drop-in replacement. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the stroke is 70 mm, side-load bending on the rod bearing is minimal, but long unsupported loads should still use an external guide. If the load must be held without live pressure, use a SAIL lock or BSAID clamp-lock cylinder instead.
Quick checklist
Because the double-rod design equalizes the piston area on both sides, it delivers 15079 N of force in both the extend and retract directions at 0.5 MPa, and 21110 N at 0.7 MPa.
Yes, it is dimensionally interchangeable per ISO 15552. It serves as a drop-in replacement for other ISO 15552 double-rod profile cylinders, utilizing the standard mounting interface and PT threaded G3/4 ports.
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