Airtac SCD Standard Cylinder SCD80X200S
The AirTAC Airtac SCD Standard Cylinder SCD80X200S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø25mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø80mm bore, 200mm stroke, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Rod (both ends)Ø25 mm
- Stroke200 mm
- Port sizePT3/8
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD80X200S
The SCD80X200S is a double-acting, double-rod pneumatic cylinder where the piston rod extends from both ends, providing identical push and pull thrust of 2268 N at 0.5 MPa. This symmetry is ideal for applications needing a rear rod connection for a sensor flag, stopper bolt, or secondary tooling without altering the forward force. The 25 mm diameter through-rod enhances bearing support and resists rotation better than a single-rod design.
Equipped with a built-in magnet (the -S suffix), this model accepts CMSG, DMSG, or EMSG sensors clamped directly onto the tie-rod barrel for non-contact position sensing. With a 200 mm stroke and a body length A(SCD) of 257 mm, it fits medium-reach transfer tasks. The adjustable air cushion at each end, with a 28 mm cushion length, decelerates the piston smoothly, protecting end-cap components during high-cycle operation.
Airtac SCD Standard Cylinder SCD80X200S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD80X200S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 200 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max stroke | Up to 1500 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 (Ø80mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | 3175 N |
| Max (@1.0 MPa) | 463 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 SCD80X200S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 80 | Bore size in mm. |
| ×200 | 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 SCD80X200S Is Used
Bidirectional Shuttle Tables
The equal push-pull force of 2268 N at 0.5 MPa makes the SCD80X200S perfect for shuttle or transfer tables where the load mass and acceleration requirements are identical in both directions, ensuring smooth, predictable motion.
Rear-Mounted Stroke Sensing
The built-in magnet allows a CMSG or DMSG sensor to be mounted on the rear end of the cylinder. This is useful for confirming full retraction when the rear rod is inside a guarded area or carrying a secondary operation tool.
Non-Rotating Pusher Stations
The dual-rod support from the 25 mm through-rod provides inherent anti-rotation, making this cylinder suitable for simple pusher or ejector stations where adding an external guide rail is undesirable but rod twist must be prevented.
Is the Airtac SCD Standard Cylinder SCD80X200S the Right Cylinder?
Choose the SCD80 bore when your application needs balanced force around 2268 N at 0.5 MPa in both directions. If your load requires roughly 1402 N, stepping down to a 63 mm bore reduces air consumption and physical size. For higher thrust near 3681 N, the SCD100 bore is the next logical step. This double-rod unit is the right choice when you need a rear rod extension; if only a front rod is required, the single-rod SC series is a simpler, more compact alternative.
For a 200 mm stroke, side-loading is generally manageable if the load is guided externally, but the through-rod design already offers better guidance than a single-rod cylinder. To replace an existing SCD80X200S, match the 80 mm bore, 200 mm stroke, PT port thread, basic mounting, and the integrated magnet. Never use this cylinder as a load-holding device; if the load must not drift when air pressure is removed, add an external pilot-operated check valve or a mechanical rod lock.
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 SCD80X200S FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it produces 2268 N, at 0.7 MPa it produces 3175 N, and at the maximum operating pressure of 0.9 MPa it delivers 4082 N in both directions.
Choose the SCD when you need a rod extension on the rear cap for mounting a sensor cam, a mechanical stop, or a secondary tool. The through-rod also provides better guidance and inherent anti-rotation compared to a single-rod cylinder, which is beneficial for long strokes or when external guides cannot be used.
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