Airtac SAID50 Double Rod Cylinder SAID50BX70S
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50BX70S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 70mm 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
- Stroke70 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 SAID50BX70S
The AirTAC SAID50X70-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50mm bore and 70mm stroke. Because a rod extends from both end covers, the annulus area is identical on the extend and retract sides, yielding an equal force of 825 N each way at 0.5 MPa. This through-rod geometry is ideal for applications requiring dual-side guidance and superior anti-rotation resistance.
This specific configuration includes a SUS304 stainless steel rod (code B) for enhanced corrosion resistance and a built-in magnet (-S) for position sensing. The extruded aluminum barrel features sensor grooves on both sides, seamlessly accepting AirTAC CMSE reed and DMSE electronic solid-state switches. Adjustable air cushions at both ends ensure smooth deceleration, while the PT tapered port threads provide a reliable, leak-free connection.
Airtac SAID50 Double Rod Cylinder SAID50BX70S Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50BX70S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 70 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 SAID50BX70S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×70 | 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 SAID50BX70S Is Used
Symmetric Force Transfer
Ideal for pressing or transferring loads where the 825 N push and pull forces must be perfectly balanced to maintain precise process control.
Anti-Rotation Slides
The twin-rod construction prevents piston rotation during extension, providing accurate linear guidance for tooling that cannot twist.
Through-Rod Sensing
Mount the primary workpiece on the front rod and use the rear rod extension to trigger CMSE or DMSE position sensors remotely.
Is the Airtac SAID50 Double Rod Cylinder SAID50BX70S the Right Cylinder?
Choose this 50mm bore double-rod actuator when your mechanism demands equal push and pull forces alongside high torsional rigidity. If your application requires less force, stepping down to the 40mm bore yields 528 N both ways; conversely, stepping up to the 63mm bore provides 1402 N. The twin-rod design allows you to mount a primary workpiece on one end and a cam, position flag, or secondary tool on the rear rod, which is impossible with a single-rod SAI cylinder.
This model is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 double-rod cylinders. It uses the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR accessories found on single-rod variants. Note that a plain SAID does not hold its load when air pressure is lost or the valve is centered; the piston will drift. If position holding is required without live pressure, consider the SAIL (air-released lock) or BSAID (clamp-lock) variants. The 70mm stroke keeps the rod fully supported, minimizing side-load bending concerns.
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 SAID50BX70S FAQ
The double-rod design means the effective piston area is the same on both sides, resulting in an equal extend and retract force of 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa.
Yes, it is dimensionally interchangeable with ISO 15552 profile cylinders. However, it only uses the SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits the FB, CA, CB, and CR mounts found on single-rod SAI models.
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