Airtac SAID50 Double Rod Cylinder SAID50AX280S
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50AX280S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 280mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke280 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 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 SAID50 Double Rod Cylinder SAID50AX280S
The AirTAC SAID50X280-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50mm bore and 280mm stroke. Because a piston rod exits both end covers, the annulus area is identical on both sides, yielding an equal extend and retract force of 825N at 0.5 MPa. It includes a magnet for position sensing and uses a SUS420J2 stainless steel rod for enhanced corrosion resistance.
This through-rod design allows you to mount a workpiece on one end and a cam, guide, or position flag on the opposite rear rod end. The extruded aluminum barrel integrates sensor grooves on both sides for flexible switch mounting, and the overall length is longer than a single-rod SAI to accommodate the protruding rear shaft.
Airtac SAID50 Double Rod Cylinder SAID50AX280S Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50AX280S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 280 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID50 Double Rod Cylinder SAID50AX280S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×280 | 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 SAID50 Double Rod Cylinder SAID50AX280S Is Used
Symmetric Force Transfer
Ideal for transferring parts equally in both directions, utilizing the identical 825N extend and retract force to ensure balanced, stable motion without speed differentials.
Anti-Rotation Slides
The twin-rod layout provides superior resistance to torsional rotation, guiding loads smoothly along the stroke without the twisting common to single-rod actuators.
Through-Rod Sensing
Drive the primary tool on the front rod while using the rear protruding shaft to operate a cam or mount a DMSE sensor flag for dual-station synchronization.
Is the Airtac SAID50 Double Rod Cylinder SAID50AX280S the Right Cylinder?
Select this 50mm bore when an application requires equal push and pull forces alongside dual-side guidance or anti-rotation control. If your mechanism needs less force, step down to the 40mm bore (528N at 0.5 MPa); if you need more power, step up to the 63mm bore (1402N at 0.5 MPa). Unlike a single-rod SAI, this twin-rod configuration ensures symmetric speed and force both ways. Note that a plain SAID does not hold a load when air pressure is lost; if position holding is required, consider the SAIL or BSAID series, or use an external pilot-operated check valve.
This model is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 double-rod cylinders. It features a PT tapered port (G1/4), a 16mm rod with M12x1.25 thread, and adjustable air cushions at both ends. For a stroke of 280mm, the unsupported load can induce side-load and rod-bearing bending, so utilizing an external guide is advised. The integrated magnet works with AirTAC CMSE (reed) and DMSE (solid-state) sensors.
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 SAID50 Double Rod Cylinder SAID50AX280S FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the force is equal in both directions. It delivers 825N at 0.5 MPa, 1154N at 0.7 MPa, and 1484N at 0.9 MPa for both extend and retract strokes.
Yes, the SAID50X280-S is dimensionally interchangeable per ISO 15552 and serves as a drop-in replacement for other ISO 15552 double-rod cylinders. It uses a standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) but omits FB, CA, CB, and CR brackets.
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