Airtac SCD Standard Cylinder SCD40X60
The AirTAC Airtac SCD Standard Cylinder SCD40X60 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø16mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø40mm bore, 60mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Rod (both ends)Ø16 mm
- Stroke60 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac SCD Standard Cylinder SCD40X60
The SCD40X60 is a double-acting pneumatic cylinder with a through-rod design, meaning the 16 mm piston rod extends from both ends of the 191 mm body. This configuration guarantees identical push and pull force—528 N at 0.7 MPa—because the rod area is subtracted from both sides of the piston, making it ideal for tasks that demand balanced, symmetrical motion.
With a 60 mm stroke and adjustable air cushioning at both ends, this cylinder provides smooth deceleration in a compact package. Its PT1/4 ports and M12x1.25 rod threads suit standard pneumatic fittings, and the tie-rod construction allows for straightforward maintenance. The double-rod layout also improves rod guidance and naturally resists rotation better than a single-rod cylinder.
Airtac SCD Standard Cylinder SCD40X60 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD40X60 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø40 mm |
| Rod diameter | Ø16 mm (both ends) |
| Stroke | 60 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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, 21 mm |
| Max stroke | Up to 1200 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 (Ø40mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | 739 N |
| Max (@1.0 MPa) | 108 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 SCD40X60
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 40 | Bore size in mm. |
| ×60 | 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 SCD40X60 Is Used
Two-Sided Transfer
Operates a transfer shuttle that pushes a workpiece into a fixture from one side, then retracts to pull the next part into position from the opposite side using the rear rod.
Symmetrical Clamping
Applies equal clamping force from both ends of the cylinder, useful for centering or holding a part where access is needed from two sides simultaneously.
Non-Rotating Pusher
The dual-rod support provides inherent anti-rotation, allowing the cylinder to push a load without a separate external guide for simple, straight-line ejection tasks.
Is the Airtac SCD Standard Cylinder SCD40X60 the Right Cylinder?
Choose the SCD40X60 when your application requires equal force in both directions from a 40 mm bore. If you need more thrust, the SCD50 series steps up to 825 N at 0.7 MPa. For applications where the rear rod is unnecessary, a single-rod SC cylinder offers a simpler, often more cost-effective solution. If the load applies significant side force, consider an externally guided unit or a rodless cylinder instead of relying solely on the through-rod's guidance.
To replace an existing SCD40X60, match the 40 mm bore, 60 mm stroke, PT port thread, basic mounting style, and confirm whether the original had a magnet. This model is the standard TPU seal version for ambient temperatures from -20 to +70 °C.
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 SCD40X60 FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it outputs 528 N, at 0.7 MPa it delivers 739 N, and at the maximum operating pressure of 0.9 MPa it reaches 950 N. The theoretical force at 1.0 MPa is 108 kgf.
Select the SCD when you need the rod to perform work on both ends—such as mounting a sensor flag on the rear or driving two separate mechanisms. The through-rod also provides better support and natural anti-rotation compared to a single-rod cylinder, leading to longer seal life in applications with slight misalignment.
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