Airtac SCD Standard Cylinder SCD63X15
The AirTAC Airtac SCD Standard Cylinder SCD63X15 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, 15mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Rod (both ends)Ø20 mm
- Stroke15 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD63X15
The SCD63X15 is a double-acting, double-rod pneumatic cylinder that provides identical push and pull force of 1402 N at 0.5 MPa, thanks to its through-rod design where a 20 mm rod extends from both end caps. This short 15 mm stroke unit is ideal for precise, repetitive two-sided actuation in tight spaces, such as clamping both sides of a workpiece or ejecting parts from a fixture.
With a body length A(SCD) of 210 mm and an adjustable air cushion of 28 mm at each end, it decelerates the piston smoothly in both directions. The PT1/4 ports and M16x1.5 rod threads ensure straightforward integration, while the symmetric rod guidance helps resist minor rotation without needing an external guide for light, on-axis loads.
Airtac SCD Standard Cylinder SCD63X15 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD63X15 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 15 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 SCD63X15
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 63 | Bore size in mm. |
| ×15 | 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 SCD63X15 Is Used
Dual-Sided Clamping
The rod extending from both ends allows a single SCD63X15 to simultaneously clamp two workpieces or apply pressure to opposite sides of a fixture, halving the number of actuators required.
Short-Stroke Shuttle Gate
With a 15 mm stroke and equal force in both directions, this cylinder reliably operates a small diverter gate or shuttle on a conveyor line, ensuring consistent speed for both extend and retract.
Anti-Rotation Pusher
The twin-rod support provides inherent anti-rotation stability for a short pusher plate, making it suitable for ejecting parts from a nest without the added complexity of an external guide rail.
Is the Airtac SCD Standard Cylinder SCD63X15 the Right Cylinder?
This 63 mm bore model sits between the smaller SCD50 (825 N at 0.5 MPa) and the larger SCD80 (2268 N at 0.5 MPa). If your application needs more force for a short stroke, stepping up to the SCD80 provides a significant thrust increase. For applications where only one side of the piston needs to perform work, a single-rod SC63 cylinder is a lighter and more compact alternative. A direct replacement must match the 63 mm bore, 15 mm stroke, PT1/4 port thread, basic mounting style, and the absence of a magnet.
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 SCD63X15 FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it produces 1402 N, at 0.7 MPa it produces 1962 N, and at the maximum operating pressure of 0.9 MPa it delivers 2523 N in both directions.
Choose the SCD63 when you need to mount a tool, sensor flag, or stop on the rear rod, or when you require perfectly equal force and speed in both directions. The through-rod also provides better bearing support than a single-rod cylinder, which helps resist side loads and piston rotation on short-stroke applications.
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