Airtac SCD Standard Cylinder SCD63X45
The AirTAC Airtac SCD Standard Cylinder SCD63X45 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, 45mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Rod (both ends)Ø20 mm
- Stroke45 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD63X45
The SCD63X45 is a double-acting, double-rod pneumatic cylinder that outputs exactly 1402 N of force in both directions at 0.5 MPa, thanks to its through-rod design which subtracts the 20 mm rod area from both piston sides. This 45 mm stroke model is a compact choice for short-travel, two-sided tasks where the rear rod extension can carry a sensor flag, manual stop, or secondary tooling.
With a body length A(SCD) of 210 mm and an adjustable air cushion of 28 mm at each end, the SCD63X45 decelerates the piston smoothly without needing external shock absorbers. The PT1/4 ports and M16x1.5 rod threads are standard across the 63 bore family, making it straightforward to integrate into existing AirTAC SCD setups.
Airtac SCD Standard Cylinder SCD63X45 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD63X45 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 45 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 SCD63X45
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 63 | Bore size in mm. |
| ×45 | 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 SCD63X45 Is Used
Two-Sided Label Application
The rear rod drives a secondary tamp pad while the front rod applies a label, synchronising both actions from one compact 45 mm stroke cylinder.
Stroke-End Flag Sensing
Extend the rear rod to carry a simple metal flag that breaks a slot sensor beam, giving a hard-wired end-of-stroke confirmation without adding a bracket to the front tooling.
Short-Pitch Part Transfer
Mount a pusher plate between two guided rails and drive it from both ends of the through rod, keeping the push force symmetric across a 45 mm transfer pitch.
Is the Airtac SCD Standard Cylinder SCD63X45 the Right Cylinder?
Choose the SCD63X45 when you need equal push-pull force in a short stroke. If your application demands more thrust, the SCD80 bore steps up to 2268 N at 0.5 MPa; for a lighter, more compact solution, the SCD50 delivers 825 N. Because both rods move together, this cylinder is not a substitute for a guided unit under side load—add an external guide rail if the 45 mm stroke involves any off-axis force.
For a drop-in replacement, match the 63 mm bore, 45 mm stroke, PT port thread, and basic mounting. If you need sensor feedback, order the -S magnet variant so CMSG or DMSG switches can clamp directly onto the tie-rod barrel.
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 SCD63X45 FAQ
Push and pull force are identical on this double-rod cylinder. At 0.5 MPa it outputs 1402 N, at 0.7 MPa it reaches 1962 N, and at the maximum operating pressure of 0.9 MPa it delivers 2523 N in both directions.
Choose the SCD when you need equal force and speed in both directions, or when the rear rod extension is useful for mounting a sensor target, a manual adjuster, or secondary tooling. The through rod also improves rod bearing support compared to a single-rod design, though it does not replace a fully guided cylinder for side loads.
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