Airtac SCD Standard Cylinder SCD63X80
The AirTAC Airtac SCD Standard Cylinder SCD63X80 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. Ø63mm bore, 80mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Rod (both ends)Ø20 mm
- Stroke80 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD63X80
The SCD63X80 is a double-acting, double-rod pneumatic cylinder where the piston rod extends from both ends, giving you identical push and pull force in both directions. At 0.5 MPa it outputs 1402 N each way, and at the maximum operating pressure of 0.9 MPa that rises to 2523 N, driven by a 20 mm through-rod that provides better guidance and anti-rotation than a single-rod design.
With an 80 mm stroke and a body length A of 210 mm, this cylinder is compact enough for symmetrical tooling in tight spaces. The adjustable air cushion on both ends (28 mm length) decelerates the piston smoothly, and the PT1/4 ports keep plumbing simple. It is a genuine AirTAC tie-rod cylinder built for repetitive, balanced two-sided tasks.
Airtac SCD Standard Cylinder SCD63X80 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD63X80 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 80 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, 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 (Ø63mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 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 SCD63X80
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 63 | Bore size in mm. |
| ×80 | 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 SCD63X80 Is Used
Two-Sided Actuation
Operates tooling on both ends of the cylinder simultaneously, such as clamping two parts in a welding fixture with perfectly balanced force.
Non-Rotating Pusher
The dual-rod design resists rotation, making it ideal for pushing components onto a conveyor without adding an external guide rail for the rod.
Rear Stroke Sensing
The rear rod extension provides a clean mounting point for a sensor flag or mechanical stop, enabling end-of-stroke detection without interfering with the front tooling.
Is the Airtac SCD Standard Cylinder SCD63X80 the Right Cylinder?
Choose the SCD63X80 when your application needs equal force and speed extending and retracting, such as a two-sided stamping fixture. If you need more thrust, the SCD80 delivers 2268 N at 0.5 MPa; for a smaller footprint, the SCD50 provides 825 N. If the load is only on one side, a single-rod SC63 cylinder may be a simpler fit.
For replacement, match bore (63), stroke (80), PT port thread, and the basic mounting style. If you add a magnet (-S suffix) or switch to a TC centre trunnion mount later, the mounting accessory kit F-SC63TC must be ordered to match. At this short 80 mm stroke, rod bending is not a concern.
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 SCD63X80 FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it outputs 1402 N, at 0.7 MPa it is 1962 N, and at the maximum operating pressure of 0.9 MPa it reaches 2523 N.
Use the SCD when you need the same force and speed in both directions, want to mount tooling or a sensor on the rear rod, or require the inherent anti-rotation guidance of a through-rod. An SC single-rod cylinder is better if you only need force on one side and want a more compact overall length.
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