Airtac SAID80 Double Rod Cylinder SAID80BX275S
The AirTAC Airtac SAID80 Double Rod Cylinder SAID80BX275S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 275mm 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.
- BoreØ80 mm
- Stroke275 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAID80 Double Rod Cylinder SAID80BX275S
The AirTAC SAID80X275-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 80 mm bore and 275 mm stroke. A single piston drives a rod out of both end covers, yielding equal annulus areas. Consequently, it generates 2268 N of force in both extend and retract directions at 0.5 MPa, peaking at 4082 N at 0.9 MPa. The integrated magnet supports position sensing, while the SUS304 stainless steel rod provides superior corrosion resistance.
Because the rod protrudes from the rear cover, you can mount a secondary cam, position flag, or drive a second mechanism without disturbing the primary workpiece. This twin-rod layout also enhances load guidance and resists rotation better than a single-rod configuration. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac SAID80 Double Rod Cylinder SAID80BX275S Technical Specifications
| Model | Airtac SAID80 Double Rod Cylinder SAID80BX275S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 275 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.
Theoretical Output Force (Ø80mm)
| 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.
Model Code: Airtac SAID80 Double Rod Cylinder SAID80BX275S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×275 | 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 SAID80 Double Rod Cylinder SAID80BX275S Is Used
Symmetric Force Transfer
Drives a transfer shuttle with identical push and pull thrust, ensuring consistent cycle timing without recalculating force differentials.
Anti-Rotation Slides
Uses the twin-rod geometry to resist torsional deflection on vertical lifting slides, keeping the payload guided without external rails.
Dual-Station Actuation
Mounts the primary tool on the front rod and a secondary cam or limit flag on the rear rod to trigger independent downstream mechanisms.
Is the Airtac SAID80 Double Rod Cylinder SAID80BX275S the Right Cylinder?
Choose this 80 mm bore when your application requires symmetric force and speed both ways, stepping up from the 63 mm bore (1402 N at 0.5 MPa) or down from the 100 mm bore (3681 N at 0.5 MPa). A double-rod design is preferred over a single-rod SAI when dual-side actuation, anti-rotation guidance, or rear-end sensing is needed. Remember that the adjustable air cushions only decelerate the piston near stroke end; they do not hold a load. If the air supply drops, the cylinder drifts, so use an external rod lock or a BSAID clamp-lock cylinder for fail-safe positioning.
For dimensioning, this model uses PT tapered ports sized at G3/8. It is dimensionally interchangeable with other ISO 15552 cylinders, utilizing a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 275 mm stroke is substantial, the extended rod creates higher bending moments on the rod bearing; for heavy offset loads, add an external guide rail to prevent premature wear.
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 SAID80 Double Rod Cylinder SAID80BX275S FAQ
Because the rod occupies both sides of the piston, the effective area is identical in both directions. It provides 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa for both extend and retract strokes.
Yes, it shares the exact ISO 15552 mounting interface dimensions, making it a drop-in replacement for other ISO 15552 profile cylinders. Just ensure you use the supported SAID mounting accessories (Basic, FA, LB, TC, FTC, TCM1, TCM2) and account for the rear rod clearance.
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