Airtac SCD Standard Cylinder SCD63X30S
The AirTAC Airtac SCD Standard Cylinder SCD63X30S 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, 30mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Rod (both ends)Ø20 mm
- Stroke30 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD63X30S
The SCD63X30S is a short-stroke double-rod cylinder that delivers identical 1402 N push and pull force at 0.5 MPa, thanks to its through-rod design subtracting the 20 mm rod area from both piston sides. This symmetry is ideal for compact stations where tooling must be mounted on both ends of the rod, such as a rear stopper or a sensor flag, without altering the force balance.
At 0.9 MPa the output rises to 2523 N in either direction, and the adjustable air cushion (28 mm length) decelerates the piston smoothly at both stroke ends. The built-in magnet (S suffix) lets you clamp CMSG, DMSG, or EMSG sensors directly onto the tie-rod barrel for clean position feedback, while the PT1/4 ports and M16x1.5 rod threads keep connections standard.
Airtac SCD Standard Cylinder SCD63X30S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD63X30S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 30 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 SCD63X30S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 63 | Bore size in mm. |
| ×30 | 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 SCD63X30S Is Used
Two-Sided Actuation
The 30 mm stroke with equal push-pull force is perfect for a compact transfer shuttle where a tool or workpiece is pushed and pulled from both rod ends.
Sensor-Ready Short Stroke
The built-in magnet allows CMSG/DMSG sensors to detect end-of-stroke on a tight 30 mm movement, ideal for a high-speed pick-and-place nest.
Anti-Rotation Pusher
The through-rod provides better guidance than a single-rod cylinder, helping resist rotation in a short-stroke alignment pusher without adding external guides.
Is the Airtac SCD Standard Cylinder SCD63X30S the Right Cylinder?
Choose the SCD63X30S when you need a compact double-rod actuator with sensor-ready position sensing. If 1402 N at 0.5 MPa is too light, stepping up to the SCD80 bore provides 2268 N; if it is too heavy, the SCD50 delivers 825 N. For a single-rod application where only one end of the rod is used, the SC63 series is a simpler, lower-cost alternative.
As a genuine AirTAC replacement, match five points: 63 mm bore, 30 mm stroke, PT port thread, basic mounting (no bracket), and the -S magnet option. The short 30 mm stroke keeps the rod well-supported inside the bearings, but if side load is present, an external guide or a guided cylinder is still the safer choice.
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 SCD63X30S FAQ
Push and pull force are equal at 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at 0.9 MPa. The 20 mm rod area is subtracted from both sides of the piston.
Yes, the -S suffix indicates a built-in magnet. You can clamp CMSG reed switches, DMSG solid-state sensors, or EMSG sensors directly onto the cylinder's tie-rod barrel.
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