Airtac SAID50 Double Rod Cylinder SAID50BX350
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50BX350 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 350mm 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
- Stroke350 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 SAID50BX350
The AirTAC SAID50X350 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50mm bore and 350mm stroke. Because a rod exits both ends, the annulus area is identical on extend and retract, yielding an equal 825N of force in both directions at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting.
This specific variant uses SUS304 stainless steel rods (code B) for superior corrosion resistance. The rear rod protrusion allows you to mount a cam or position flag on the opposite end from the primary workpiece, enabling dual-side guidance and better anti-rotation control. Ports are PT tapered threads sized at G1/4.
Airtac SAID50 Double Rod Cylinder SAID50BX350 Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50BX350 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 350 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 SAID50BX350
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×350 | 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 SAID50BX350 Is Used
Symmetric Transfer
Drives a transfer shuttle where equal push and pull forces ensure consistent cycle times regardless of travel direction.
Anti-Rotation Slide
Twin rods prevent piston rotation during vertical lifting, keeping guided loads perfectly stable without external guides.
Rear-Cam Actuation
Primary tool mounts on the front rod while the rear rod drives a secondary cam or limit flag for sequenced operations.
Is the Airtac SAID50 Double Rod Cylinder SAID50BX350 the Right Cylinder?
Choose this 50mm bore when you need symmetric force and speed both ways, stepping up from a 40mm bore (528N at 0.5 MPa) or down from a 63mm bore (1402N at 0.5 MPa). A double-rod design is preferred over a single-rod SAI when the mechanism requires twin-station actuation or rear-rod sensing. Note that air cushions only decelerate the piston near stroke end; this cylinder will drift if air pressure is lost, so use a SAIL or BSAID lock cylinder if position holding is required.
With a 350mm stroke, the unsupported rod length increases the risk of side-load bending on the rod bearing, so an external guide is recommended. It is dimensionally interchangeable per ISO 15552 and uses the reduced SAID mounting set: Basic, FA, LB, TC, FTC, TCM1, TCM2. No -S magnet is specified, so position sensing requires external flags or a separate sensor target.
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 SAID50BX350 FAQ
It provides 825N of force in both extend and retract directions at 0.5 MPa, and 1154N at 0.7 MPa, because the double-rod design equalizes the piston area on both sides.
Yes, it is dimensionally interchangeable with ISO 15552 cylinders, but the SAID series uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets.
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