Airtac SCD Standard Cylinder SCD80X720STC
The AirTAC Airtac SCD Standard Cylinder SCD80X720STC 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, 720mm stroke, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Rod (both ends)Ø25 mm
- Stroke720 mm
- Port sizePT3/8
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD80X720STC
The SCD80X720STC is a double-acting, double-rod pneumatic cylinder where the piston rod extends from both ends, delivering perfectly balanced 2268 N of force in each direction at 0.5 MPa. At its 720 mm stroke, the 25 mm through-rod provides inherent anti-rotation and allows tooling or sensors to be mounted on the rear side, making it ideal for symmetrical transfer mechanisms.
This model is factory-configured with a built-in magnet (S suffix) for direct mounting of CMSG/DMSG sensors, and a TC centre trunnion mount that ships with the TCM1 bracket, allowing the cylinder to pivot as it actuates. The adjustable air cushion (28 mm) at each end decelerates the piston smoothly, and the PT1/8 ports handle flows suitable for speeds up to 800 mm/s.
Airtac SCD Standard Cylinder SCD80X720STC Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD80X720STC |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 720 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 SCD80X720STC
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 80 | Bore size in mm. |
| ×720 | 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 SCD80X720STC Is Used
Symmetrical Transfer Shuttles
The equal push/pull force and dual rod ends make this cylinder perfect for shuttle tables where a tooling plate is fixed to one rod end and a counterbalance or secondary tool to the other, ensuring smooth, balanced motion.
Pivoting Clamp & Fixture Arms
With the TC centre trunnion mount, the SCD80X720STC can swing through an arc to operate a clamp arm. The rear rod can carry a sensor flag to confirm the clamp's position without adding hardware to the front tooling.
Non-Rotating Pusher Stations
The through-rod design provides superior resistance to rod rotation compared to a single-rod cylinder. Use it in a pusher application where maintaining the orientation of a vacuum cup or gripper across a 720 mm stroke is critical.
Is the Airtac SCD Standard Cylinder SCD80X720STC the Right Cylinder?
Choose the SCD80 bore when your application needs roughly 2268 N of balanced force at standard plant pressure; stepping down to an SCD63 cuts force to 1402 N, while moving up to an SCD100 nearly doubles it to 3681 N. This STC variant is specifically for pivoting applications—if your load travels in a straight line, an FA front flange or LB foot mount would be a better fit. For a 720 mm stroke, be mindful of rod buckling under compressive loads; the double-rod design improves guidance, but sustained side forces still demand an external guide rail or a dedicated guided cylinder.
As a direct replacement, match the 80 mm bore, 720 mm stroke, PT port thread, centre trunnion (TC) mounting, and the integrated magnet. This unit swaps in for any AirTAC SCD80X720STC without modifying the pivot bracket or sensor setup.
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 SCD80X720STC FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa you get 2268 N, at 0.7 MPa you get 3175 N, and at the maximum operating pressure of 0.9 MPa the force reaches 4082 N in both directions.
Choose the SCD80 when you need equal force and speed in both directions, or when you need to mount tooling, a stopper bolt, or a position-sensing flag on the rear rod end. The dual-rod support also gives better guidance against side loads than a single-rod cylinder, though it is not a replacement for a fully guided unit under heavy lateral forces.
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