
The AirTAC Airtac SAID80 Double Rod Cylinder SAID80BX290 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 290mm stroke, G3/8 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 SAID80X290 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 80mm bore and 290mm stroke. Because a SUS304 stainless steel rod exits both end covers, the annulus area is identical on extend and retract. This yields exactly 2268N of force at 0.5 MPa in both directions, ensuring symmetric speed and thrust for demanding transfer operations.
The twin-rod architecture provides superior anti-rotation guidance compared to single-rod units, allowing you to mount a workpiece on the front rod and a position flag or cam on the rear. It uses PT tapered port threads (G3/8) and includes adjustable air cushions at both ends to decelerate the piston near stroke limits. Note that this plain double-rod variant does not hold load position if air pressure is lost; for braking requirements, consider the BSAID clamp-lock series.
| Model | Airtac SAID80 Double Rod Cylinder SAID80BX290 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 290 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×290 | 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.
Drives shuttle mechanisms where equal 2268N push and pull thrust prevents uneven acceleration across the stroke path.
Leverages the dual SUS304 rods to maintain strict orientation and prevent mechanical twisting during vertical lifting.
Mounts the primary work tool on the front rod extension while driving a secondary cam or limit flag from the rear.
Select this 80mm bore when an application requires balanced 2268N force both ways and higher side-load capacity than a 63mm bore (1402N at 0.5 MPa) offers, without stepping up to the larger 100mm unit (3681N at 0.5 MPa). The 20mm rod diameter and M20x1.5 rod thread provide robust load anchoring. Choose the double-rod SAID over the single-rod SAI when your mechanism demands dual-side actuation, rear-rod sensing, or strict anti-rotation stability.
For a drop-in replacement, ensure your existing setup matches the ISO 15552 mounting interface. SAID supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, deliberately omitting the FB, CA, CB, and CR options found on single-rod variants. Since the stroke is 290mm, the long unsupported rod length increases the risk of rod-bearing bending under lateral loads; always incorporate an external guide rail to prevent premature wear.
Quick checklist
The SAID80X290 provides 2268N of force at 0.5 MPa, 3175N at 0.7 MPa, and 4082N at 0.9 MPa. Because it is a double-rod cylinder, these pull-side figures apply equally to both the extend and retract directions.
Yes, the SAID80X290 is dimensionally interchangeable per ISO 15552. It serves as a drop-in replacement for other ISO 15552 double-rod profile cylinders, utilizing a G3/8 PT port and standard mounting interfaces.
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