Airtac SCD Standard Cylinder SCD50X600S
The AirTAC Airtac SCD Standard Cylinder SCD50X600S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø20mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø50mm bore, 600mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Rod (both ends)Ø20 mm
- Stroke600 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac SCD Standard Cylinder SCD50X600S
The SCD50X600 is a double-acting, double-rod pneumatic cylinder that delivers a balanced 825 N of force in both directions at 0.5 MPa, thanks to its through-rod design. With a 20 mm rod extending from both ends, it provides equal push and pull thrust, making it ideal for applications where the tooling or a sensor flag must be mounted on the rear side.
This 50 mm bore model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for precise position feedback. The 600 mm stroke operates within the standard range for this bore, and the PT1/4 ports supply air to move the piston at speeds from 30 to 800 mm/s, cushioned by 21 mm of adjustable pneumatic deceleration at each end.
Airtac SCD Standard Cylinder SCD50X600S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD50X600S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø50 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 600 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/4 |
| 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, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SCD (double-rod) datasheet. Because the rod runs through both caps, the effective area is (bore² − rod²) in both directions. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø50mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 825 N | 825 N |
| 0.7 MPa | 1155 N | 1155 N |
| Max (@1.0 MPa) | 168 kgf | |
Push and pull are EQUAL on a double-rod cylinder — both chambers lose the rod area, so effective area = (bore² − rod²) each way. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
Model Code: Airtac SCD Standard Cylinder SCD50X600S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 50 | Bore size in mm. |
| ×600 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCJ (adjustable stroke), SCT (multi-position). SCD mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCD Standard Cylinder SCD50X600S Is Used
Bidirectional Transfer Shuttles
The equal 825 N push-pull force at 0.5 MPa makes this cylinder perfect for shuttling parts between two stations where the load and speed must be identical in both directions.
Rear-Mounted Stroke Sensing
The rear rod provides a convenient mounting point for a sensor flag or cam, while the built-in magnet allows barrel-mounted CMSG/DMSG sensors to detect piston position without adding brackets to the moving load.
Anti-Rotation Pusher
With a rod on both ends supported by bearings, this 50 mm bore cylinder offers better resistance to rod rotation than a single-rod type, making it suitable for pushing applications where twist must be minimized.
Is the Airtac SCD Standard Cylinder SCD50X600S the Right Cylinder?
Choose the SCD50X600 when your mechanism needs identical force and speed in both directions without the asymmetry of a single-rod cylinder. If 825 N is insufficient, stepping up to the 63 mm bore provides 1402 N at the same pressure, while dropping to the 40 mm bore yields 528 N. For applications with significant side loading on a 600 mm stroke, consider an external guide rail; the through-rod improves guidance but is not a replacement for a fully guided cylinder under heavy radial loads.
This model is a direct replacement for another AirTAC SCD50X600 with matching PT ports, basic mounting, and the -S magnet. Ensure the replacement matches bore, stroke, port thread, and the magnet option to guarantee identical fit and sensor compatibility.
Double-rod checklist
- ✓ Need equal force / speed both directions?
- ✓ Rear rod for tooling, stopper or sensor flag?
- ✓ Better rod guidance / anti-rotation?
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Keep BOTH rod ends clear of side load and interference.
- check Adjust end cushion screws for smooth stops.
- check Use SCD mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCD Standard Cylinder SCD50X600S FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it produces 825 N, at 0.7 MPa it produces 1154 N, and at the maximum operating pressure of 0.9 MPa it delivers 1484 N in both directions.
Choose the SCD when you need equal force and speed in both directions, or when you need to mount tooling, a stopper, or a sensor target on the rear side of the cylinder. The through-rod design also provides better guidance and anti-rotation than a single-rod SC, though it is not a substitute for a fully guided cylinder under heavy side loads.
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