Airtac SCD Standard Cylinder SCD80X280S
The AirTAC Airtac SCD Standard Cylinder SCD80X280S 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, 280mm stroke, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Rod (both ends)Ø25 mm
- Stroke280 mm
- Port sizePT3/8
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD80X280S
The SCD80X280S delivers identical push and pull force of 2268 N at 0.5 MPa, thanks to its double-rod design where the 25 mm rod passes through both end caps. This symmetry is ideal for applications needing a rear rod connection for a stopper bolt, limit switch flag, or secondary tooling, ensuring perfectly balanced motion in both directions.
With a 280 mm stroke and a body length A of 257 mm, this cylinder provides substantial reach while the adjustable air cushion (28 mm length) decelerates the piston quietly at each end. The integrated magnet allows easy mounting of CMSG, DMSG, or EMSG sensors directly on the tie-rod barrel for reliable, non-contact position sensing.
Airtac SCD Standard Cylinder SCD80X280S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD80X280S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 280 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 SCD80X280S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 80 | Bore size in mm. |
| ×280 | 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 SCD80X280S Is Used
Bidirectional Transfer Shuttles
Moves parts between two stations with identical speed and force profiles in each direction, using both rod ends to carry tooling or a counterbalance.
Rear Stroke Sensing
The rear rod extension provides a perfect mounting point for a sensor flag or cam, enabling end-of-stroke detection without interfering with the primary working end.
Anti-Rotation Pushers
The dual-rod support offers superior guidance against twisting compared to a single-rod cylinder, making it suitable for simple pressing or ejecting tasks with moderate side loads.
Is the Airtac SCD Standard Cylinder SCD80X280S the Right Cylinder?
Choose the SCD80X280S when your application demands equal force and speed in both directions, such as a transfer shuttle needing a tooling plate on each rod end. If you require more thrust, the SCD100 series offers 3681 N at 0.5 MPa. For less, the SCD63 provides 1402 N. A single-rod SC cylinder is a better choice if you only need a working stroke in one direction and want a more compact installation. For direct replacement, match the 80 mm bore, 280 mm stroke, PT ports, basic mounting, and the -S magnet option.
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 SCD80X280S 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 is 3175 N, and at the maximum operating pressure of 0.9 MPa it reaches 4082 N in both directions.
Choose the SCD when you need to attach tooling, a stop, or a sensor target to the rear rod, or when you require perfectly equal speed and force for both extend and retract strokes. The through-rod design also provides better guidance and inherent anti-rotation compared to a single-rod cylinder.
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