Airtac SCD Standard Cylinder SCD32X140
The AirTAC Airtac SCD Standard Cylinder SCD32X140 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø12mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø32mm bore, 140mm stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Rod (both ends)Ø12 mm
- Stroke140 mm
- Port sizePT1/8
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac SCD Standard Cylinder SCD32X140
The SCD32X140 is a double-acting, double-rod pneumatic cylinder that outputs an identical 345 N in both directions at 0.5 MPa, thanks to its 12 mm rod passing through both end caps. This symmetrical force makes it ideal for applications where a rear rod extension carries a sensor flag or secondary tooling, ensuring consistent speed and thrust regardless of travel direction.
With a 140 mm stroke and a 21 mm adjustable air cushion at each end, the cylinder decelerates the piston smoothly to reduce end-of-stroke impact. The compact body length A(SCD) of 187 mm keeps the assembly short, while the PT1/8 ports and M10x1.25 rod threads offer straightforward pneumatic connections and tooling attachment on both sides.
Airtac SCD Standard Cylinder SCD32X140 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD32X140 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø32 mm |
| Rod diameter | Ø12 mm (both ends) |
| Stroke | 140 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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 1000 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 (Ø32mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | 484 N |
| Max (@1.0 MPa) | 70 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 SCD32X140
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 32 | Bore size in mm. |
| ×140 | 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 SCD32X140 Is Used
Two-Sided Transfer
The through-rod lets you mount a push plate on the front and a return stop on the rear, creating a bidirectional shuttle for small parts transfer with equal force in both strokes.
Rear Flag Sensing
Attach a sensor flag to the rear M10x1.25 rod end to confirm full retraction without adding a bracket to the front tooling, keeping the sensing setup clean and protected.
Non-Rotating Alignment
The dual-rod support provides inherent anti-rotation stability for light alignment pins or probes, reducing the need for an external guide in purely axial, low-side-load tasks.
Is the Airtac SCD Standard Cylinder SCD32X140 the Right Cylinder?
Choose the SCD32 when you need equal push-pull force in a compact tie-rod body. If 345 N at 0.5 MPa is slightly under your requirement, the next bore up—SCD40—provides 528 N at the same pressure. For applications that only need force from one end, the single-rod SC series is a simpler, lower-cost alternative. This double-rod design offers better rod guidance than a single-rod cylinder but is not a substitute for a guided cylinder under significant side loads.
To replace an existing SCD32X140, match the 32 mm bore, 140 mm stroke, PT port thread, basic mounting style, and absence of a magnet. Any deviation in these five points may alter mounting dimensions or sensor compatibility.
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 SCD32X140 FAQ
Because the 12 mm rod occupies area on both sides of the piston, push and pull forces are equal. At 0.5 MPa you get 345 N, at 0.7 MPa it is 483 N, and at the maximum operating pressure of 0.9 MPa the force reaches 621 N.
Select an SCD when you need identical force and speed in both directions, or when the rear rod extension is useful for mounting sensors, cams, or secondary tooling. The through-rod also improves bearing support, offering better resistance to slight misalignment than a single-rod SC, though it is not designed for heavy side loads.
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