Airtac SAID50 Double Rod Cylinder SAID50X55S
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50X55S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 55mm 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
- Stroke55 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 SAID50X55S
The AirTAC SAID50X55-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a non-standard 55mm stroke and an integrated magnet for position sensing. Because a carbon steel rod exits both end covers, the effective piston area is identical in extend and retract directions. This provides an equal force output of 825 N at 0.5 MPa both ways, ensuring perfectly symmetrical motion dynamics.
The twin-rod architecture allows you to mount the primary workpiece on one end and attach a mechanical cam, position flag, or secondary tool to the rear rod. Furthermore, the extruded aluminum barrel incorporates sensor grooves on both sides, allowing you to easily mount AirTAC CMSE reed or DMSE electronic switches exactly where needed for dual-side feedback.
Airtac SAID50 Double Rod Cylinder SAID50X55S Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50X55S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 55 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 SAID50X55S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×55 | 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 SAID50X55S Is Used
Symmetric Force Transfer
Drives transfer arms where the pushing and pulling loads are identical, ensuring consistent speed and torque in both directions without pressure compensation.
Dual-Side Actuation
Executes twin-station mechanisms by mounting a primary tool on the front rod and a secondary actuator or flag on the rear protruding rod end.
Anti-Rotation Slides
Guides precision linear slides where the dual through-rod structure prevents the load from twisting or rotating during high-speed transit.
Is the Airtac SAID50 Double Rod Cylinder SAID50X55S the Right Cylinder?
Choose this 50mm bore cylinder when an application demands equal push and pull forces alongside anti-rotation guidance. If your project requires less force, the 40mm bore offers 528 N both ways at 0.5 MPa; if you need more power, stepping up to the 63mm bore yields 1402 N. The SAID50X55-S is a made-to-order unit due to its non-standard 55mm stroke, so expect a slightly longer lead time than standard 50mm or 80mm strokes.
This model uses a PT tapered G1/4 port and supports the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR brackets found on single-rod variants. Remember that the adjustable air cushions only decelerate the piston near stroke end; this cylinder will drift if air pressure is lost. For position holding without live pressure, consider an external rod lock or the SAIL/BSAID series. Dimensionally, it serves as a drop-in replacement for other ISO 15552 double-rod cylinders.
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 SAID50X55S FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the force is equal in both directions. It provides 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa for both extend and retract strokes.
Yes, it is dimensionally interchangeable per ISO 15552 profile cylinder standards. It shares the standard mounting interface and can serve as a drop-in replacement for other ISO 15552 double-rod cylinders, provided you account for the rear rod protrusion clearance.
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