Airtac SAID50 Double Rod Cylinder SAID50X145S
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50X145S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 145mm 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
- Stroke145 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 SAID50X145S
The AirTAC SAID50X145-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a magnetic piston for position sensing. Because the twin rods occupy both sides of the piston, the annulus area is identical in each direction, yielding an equal extend and retract force of 825 N at 0.5 MPa. This symmetric output is ideal for mechanisms requiring perfectly balanced push and pull dynamics.
Equipped with a standard carbon steel rod and a PT tapered port thread, this 50 mm bore unit includes adjustable air cushioning at both ends to decelerate the load smoothly. The extruded aluminum barrel integrates sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic switches exactly where needed for dual-end confirmation.
Airtac SAID50 Double Rod Cylinder SAID50X145S Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50X145S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 145 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 SAID50X145S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×145 | 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 SAID50X145S Is Used
Symmetric Force Transfer
Drives transfer shuttles where the 825 N push and pull forces must be perfectly matched to maintain consistent cycle times in both directions.
Anti-Rotation Slides
Powers linear slides where the twin-rod architecture prevents workpiece twisting, keeping the load guided securely without external rails.
Dual-End Tooling
Actuates a primary workpiece on the front rod while using the rear rod extension to drive a secondary mechanism or mount a DMSE sensor flag.
Is the Airtac SAID50 Double Rod Cylinder SAID50X145S the Right Cylinder?
Select this 50 mm bore when an application demands equal force and speed in both directions, which a single-rod SAI cannot provide due to its unequal piston areas. If your mechanism requires less force, stepping down to a 40 mm bore provides 528 N both ways at 0.5 MPa; stepping up to a 63 mm bore yields 1402 N. The double-rod design inherently resists rotation and allows a cam or position flag to be mounted on the rear rod extension.
This through-rod configuration requires extra rear clearance in your machine envelope compared to a single-rod cylinder. For drop-in replacements, ensure the ISO 15552 mounting dimensions, 145 mm stroke, PT port, and accessory choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2) match your footprint. Note that the adjustable cushions only decelerate the piston near stroke end; they do not hold the load if air pressure is lost, which would require an external pilot-operated check valve or a SAIL 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 SAID50X145S FAQ
Because it is a double-rod cylinder, the effective piston area is identical on both sides. It provides an equal force of 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa for both extending and retracting.
Yes, the SAID50X145-S is dimensionally interchangeable per ISO 15552. You can use it as a drop-in replacement for other ISO 15552 profile double-rod cylinders, provided your mounting accessory falls within the SAID set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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