Airtac SAID80 Double Rod Cylinder SAID80BX400
The AirTAC Airtac SAID80 Double Rod Cylinder SAID80BX400 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 400mm 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
- Stroke400 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 SAID80BX400
The AirTAC SAID80X400 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 400 mm stroke. Because the piston rod extends from both end covers, the annulus area is identical on both sides. This means the output force is perfectly balanced at 2268 N in both extend and retract directions at 0.5 MPa, preventing speed disparities between strokes.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and PT tapered port threads. The rear rod extension is highly useful for mounting a position flag or driving a secondary mechanism. Furthermore, the extruded aluminum barrel incorporates sensor grooves on both sides, allowing you to easily mount CMSE reed or DMSE electronic switches wherever space permits.
Airtac SAID80 Double Rod Cylinder SAID80BX400 Technical Specifications
| Model | Airtac SAID80 Double Rod Cylinder SAID80BX400 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 400 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 SAID80BX400
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×400 | 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 SAID80BX400 Is Used
Symmetric Force Transfer
Drives a workpiece from one side while the opposing rod end mirrors the motion, delivering equal 2268 N push and pull forces for balanced, symmetric handling.
Anti-Rotation Slides
The twin-rod architecture prevents piston rotation during the 400 mm travel, ensuring precise angular alignment for sliding and lifting fixtures.
Dual-Side Tool Actuation
Mount the primary work tool on the front rod and a secondary cam or position flag on the rear rod to actuate external limit sensors simultaneously.
Is the Airtac SAID80 Double Rod Cylinder SAID80BX400 the Right Cylinder?
Selecting this 80 mm bore makes sense when your application requires the 2268 N both-way force and stepping up from a 63 mm bore (1402 N at 0.5 MPa) is necessary, but a 100 mm bore (3681 N at 0.5 MPa) would be excessive. A double-rod design is chosen over a single-rod SAI when dual-side guidance, anti-rotation stability, or rear-rod sensing is required. Note that a plain SAID does not hold a load if air pressure is lost; for position holding, consider an SAIL lock cylinder or an external pilot-operated check valve.
With a 400 mm stroke, the unsupported rod length increases, raising the risk of rod-bearing bending under side loads. For this configuration, using an external guide is strongly recommended to prevent premature wear. As a dimensionally interchangeable ISO 15552 cylinder, it serves as a drop-in replacement for other standard double-rod profile cylinders. It uses PT ports, a SUS304 rod, and supports mountings from the reduced SAID 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 SAID80 Double Rod Cylinder SAID80BX400 FAQ
Because the rod occupies both sides of the piston, the extend and retract forces are equal. It delivers 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa in both directions.
Yes, the SAID80X400 is dimensionally interchangeable per ISO 15552 mounting interfaces, making it a drop-in replacement for other standard double-rod profile cylinders. It uses PT port threads and a SUS304 stainless steel rod.
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