
The AirTAC Airtac SAID80 Double Rod Cylinder SAID80BX70 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 70mm 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 SAID80X70 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 80mm bore and 70mm stroke. Because the piston rod extends from both end covers, the annular area is identical on both sides. This means the extend and retract forces are perfectly equal, providing 2268N of thrust and pull force at 0.5 MPa. It uses a G3/8 port and operates at speeds between 30 and 800 mm/s.
This specific configuration features SUS304 stainless steel rods (material code B) for superior corrosion resistance in harsh environments. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. A rod exits both ends, allowing you to mount a workpiece on the front and a position flag or cam on the rear for dual-side mechanism coordination.
| Model | Airtac SAID80 Double Rod Cylinder SAID80BX70 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 70 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. |
| ×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.
Drives a transfer carriage where the equal 2268N push and pull forces at 0.5 MPa ensure consistent momentum without asymmetric acceleration lag.
Lifts and lowers a vertical guided plate using both rod ends to prevent mechanical twisting under offset loads.
Mounts a primary clamping tool on the front rod and a rear cam to trigger a pneumatic sequence valve at stroke end.
Selecting this 80mm bore over the smaller 63mm bore upgrades your both-way force from 1402N to 2268N at 0.5 MPa. If your application requires less force, stepping down to a 50mm bore yields 825N each way. The double-rod design is chosen when a mechanism needs anti-rotation guidance, twin-station actuation, or rear-rod sensing, unlike a single-rod SAI cylinder. Remember that a plain SAID80X70 does not hold a load when air is lost; the piston drifts. For position holding, consider an external rod lock, SAIL, or BSAID clamp-lock cylinder.
This model is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 double-rod cylinders. It uses a PT tapered G3/8 port, an M20x1.5 rod thread, and mounts via Basic, FA, LB, TC, FTC, TCM1, or TCM2 accessories. Since the stroke is 70mm, side-load stress on the rod bearing is minimal, but always ensure the rear protruding rod has adequate clearance.
Quick checklist
Because it is a double-rod cylinder, the push and pull forces are equal. The SAID80X70 delivers 2268N both ways at 0.5 MPa, 3175N at 0.7 MPa, and 4082N at 0.9 MPa.
Yes, the SAID80X70 is a profile cylinder with an ISO 15552 mounting interface, making it dimensionally interchangeable with other ISO 15552 double-rod cylinders. It supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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