Airtac SCD Standard Cylinder SCD63X45S
The AirTAC Airtac SCD Standard Cylinder SCD63X45S 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 SCD63X45S
The SCD63X45S is a double-acting, double-rod pneumatic cylinder that provides identical push and pull output force, rated at 1402 N at 0.5 MPa (2523 N at 0.9 MPa). With a 20 mm rod extending from both ends, it is ideal for short-stroke applications where a rear rod connection point is needed for mounting a sensor flag, operating a limit switch, or attaching a secondary tool. The built-in magnet allows direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position sensing.
This 63 mm bore model uses a PT1/4 port and has an adjustable air cushion length of 28 mm to decelerate the piston smoothly at both ends of its 45 mm travel. The body length A(SCD) is 210 mm, making it a compact solution for tasks like two-sided pressing or symmetrical clamping where space is limited but balanced force is critical. The standard TPU seal provides reliable operation from -20 to +70 °C.
Airtac SCD Standard Cylinder SCD63X45S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD63X45S |
|---|---|
| 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 SCD63X45S
| 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 SCD63X45S Is Used
Two-Sided Actuation
The through-rod design provides equal 1402 N force in both directions, making it perfect for operating two fixtures or clamps simultaneously from a single cylinder body.
Rear Stroke Sensing
The built-in magnet (-S) and exposed rear rod allow a CMSG sensor to detect the piston's position from the back end, ideal for confirming retraction in automated cells where the front end is inaccessible.
Anti-Rotation Guiding
With a 20 mm rod supported by bearings in both end caps, this cylinder offers better resistance to rod rotation than a single-rod type, useful for maintaining tool orientation in light pressing tasks.
Is the Airtac SCD Standard Cylinder SCD63X45S the Right Cylinder?
Choose the SCD63 bore when your application needs roughly 1400 N of balanced force in both directions. If you require more thrust, stepping up to the SCD80 bore provides 2268 N at the same 0.5 MPa pressure. For less force, the SCD50 delivers 825 N. This double-rod design is the correct choice when you need to mount tooling or a cam on the rear rod; if you only need force from one end, the single-rod SC63 series is a simpler, more cost-effective alternative. For a direct replacement, match the 63 mm bore, 45 mm stroke, PT port thread, and the -S magnet option exactly.
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 SCD63X45S 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 outputs 1962 N, and at the maximum operating pressure of 0.9 MPa it outputs 2523 N in both directions.
Choose the SCD when you need a rear rod extension to mount a sensor flag, a mechanical stop, or secondary tooling. It also provides equal speed and force in both directions, which is essential for symmetrical operations. If you only need force from the front rod, the single-rod SC series is the standard choice.
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