Airtac SAID50 Double Rod Cylinder SAID50BX290
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50BX290 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 290mm 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
- Stroke290 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 SAID50BX290
The AirTAC SAID50X290 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50mm bore and 290mm stroke. Because a SUS304 stainless steel rod exits both end covers, the effective annulus area is identical on extend and retract. This yields a perfectly symmetrical output of 825N each way at 0.5 MPa, preventing the speed and force imbalances found in single-rod units.
The twin-rod architecture allows engineers to mount the primary workpiece on one end and attach a position flag, cam, or secondary mechanism on the rear rod. Dual-side guidance significantly improves load stability and resists torsion. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE solid-state switches, though this specific configuration ships without a magnet.
Airtac SAID50 Double Rod Cylinder SAID50BX290 Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50BX290 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 290 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 SAID50BX290
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×290 | 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 SAID50BX290 Is Used
Symmetric Force Transfer
Drives a transfer arm requiring identical push and pull clamping forces, using the 825N both-way output to ensure consistent material handling without pressure imbalance.
Rear-Rod Cam Actuation
Mounts the primary tool on the front rod while the rear SUS304 rod drives a secondary cam or limit flag, synchronizing two separate machine actions in one stroke.
Anti-Rotation Slides
Utilizes the twin-rod geometry to guide heavy sliding loads without rotational drift, replacing bulkier external guide rails in linear motion assemblies.
Is the Airtac SAID50 Double Rod Cylinder SAID50BX290 the Right Cylinder?
Select this 50mm bore when an application demands equal push and pull forces of 825N at 0.5 MPa. If your mechanism requires less force, step down to the 40mm bore (528N both ways); if you need higher throughput, step up to the 63mm bore (1402N both ways). Choose this double-rod SAID over a single-rod SAI when dual-side guidance, anti-rotation, or rear-rod actuation is required. For dimensionally interchangeable ISO 15552 drop-in replacements, match the 50mm bore, 290mm stroke, PT G1/4 port, and appropriate mounting accessory.
At 290mm stroke, the unsupported rod length increases bending moments and side-load stress on the rod bearings. For optimal seal and bearing life, implement an external guide rail to absorb radial loads. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold the load if air pressure drops. For true position holding, consider an external pilot-operated check valve or the SAIL lock series.
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 SAID50BX290 FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the extend and retract forces are equal. It delivers 825N both ways at 0.5 MPa, 1154N at 0.7 MPa, and 1484N at 0.9 MPa.
Yes, the SAID50X290 is dimensionally interchangeable per ISO 15552 profile standards. It uses a PT G1/4 port and supports the Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting set, allowing direct drop-in replacement.
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