Airtac SAID50 Double Rod Cylinder SAID50X280
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50X280 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 SAID50X280
The AirTAC SAID50X280 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50 mm bore and 280 mm stroke. Because a carbon steel rod exits both end covers, the annulus area is identical on extend and retract. This yields equal force and speed in both directions, providing 825 N at 0.5 MPa and 1154 N at 0.7 MPa each way.
The twin-rod architecture allows you to mount the primary workpiece on one end and a position flag, cam, or secondary mechanism on the rear rod. It provides superior anti-rotation guidance compared to a single-rod SAI. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches (requires a magnet). Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAID50 Double Rod Cylinder SAID50X280 Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50X280 |
|---|---|
| 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 SAID50X280
| 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 SAID50X280 Is Used
Symmetric Force Transfer
Drives push and pull operations requiring identical 825 N force both ways, ensuring consistent cycle times without pressure compensation.
Anti-Rotation Slides
The dual-rod design prevents piston rotation, guiding loads precisely over the 280 mm stroke without needing external linear bearings.
Rear-Rod Sensing
Mounts a cam or position flag on the rear rod end to trigger external DMSE solid-state sensors while keeping the primary work area clear.
Is the Airtac SAID50 Double Rod Cylinder SAID50X280 the Right Cylinder?
Select this 50 mm bore when an application strictly requires symmetric force and anti-rotation guidance, stepping up from the 40 mm bore (528 N at 0.5 MPa) or stepping down from the 63 mm bore (1402 N at 0.5 MPa). A double-rod design is preferred over a single-rod SAI when you need to drive a secondary mechanism or sensor flag from the rear rod. The PT G1/4 port and M16x1.5 rod thread handle robust side loads. For a 280 mm stroke, the unsupported length increases; use an external guide to prevent rod-bearing bending under heavy offset loads.
This cylinder is dimensionally interchangeable per ISO 15552, acting as a drop-in replacement for other ISO 15552 double-rod cylinders. It uses adjustable air cushions at both ends to decelerate the piston. Note that a plain SAID does not hold its position or load when air is lost or exhausted; the piston will drift. For position holding without live pressure, consider an external rod lock, a SAIL (air-released lock), or a BSAID (clamp-lock) cylinder.
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 SAID50X280 FAQ
Because it is a double-rod cylinder, the effective piston area is the same on both sides. The force is equal for extend and retract: 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa.
Yes, it is dimensionally interchangeable per ISO 15552. It supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. It omits FB, CA, CB, and CR mounts, which are for single-rod SAI cylinders only.
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