Airtac SCD Standard Cylinder SCD50X10
The AirTAC Airtac SCD Standard Cylinder SCD50X10 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. Ø50mm bore, 10mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Rod (both ends)Ø20 mm
- Stroke10 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac SCD Standard Cylinder SCD50X10
The SCD50X10 is a 50 mm bore, 10 mm stroke double-acting pneumatic cylinder with a continuous piston rod extending from both ends. Its defining characteristic is perfectly symmetrical force output—both the extend and retract strokes deliver an identical 825 N at 0.5 MPa (1484 N at 0.9 MPa), because the rod area is subtracted from the pressure area on both sides. This model uses a 20 mm diameter rod and PT1/4 ports.
With a body length A(SCD) of 207 mm, this ultra-short 10 mm stroke variant is built for precise, limited-motion tasks where a compact envelope is critical. The through-rod provides better bearing support than a single-rod cylinder of the same size, helping to resist minor side loads and rotation. It is a genuine AirTAC tie-rod cylinder, not an ISO 15552 profile type, and features an adjustable air cushion to decelerate the piston smoothly at both ends of its travel.
Airtac SCD Standard Cylinder SCD50X10 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD50X10 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø50 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 10 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, 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 (Ø50mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 825 N | 825 N |
| 0.7 MPa | 1155 N | 1155 N |
| Max (@1.0 MPa) | 168 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 SCD50X10
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 50 | Bore size in mm. |
| ×10 | 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 SCD50X10 Is Used
Reciprocating Shuttle
The equal 825 N force in both directions makes the SCD50X10 ideal for short-stroke shuttles that transfer small parts between two fixed positions with identical speed and power.
Dual-Sided Stamping
Mount a stamp or marking head on each end of the through-rod to mark two parallel surfaces simultaneously with a single 10 mm actuation, ensuring perfect synchronization.
Rear Stroke Sensing
The rear rod extension provides a clean, accessible surface for mounting a sensor flag or cam, allowing end-of-stroke detection without interfering with the primary tooling on the front rod.
Is the Airtac SCD Standard Cylinder SCD50X10 the Right Cylinder?
Choose the SCD50X10 when you need equal push-pull force in a very short stroke. If your force requirement is lower, the SCD40 bore generates 528 N at 0.5 MPa; for a step up, the SCD63 provides 1402 N. This double-rod design is the right pick over a single-rod SC when you need to mount tooling, a stop, or a sensor flag on the rear rod, or when the symmetric loading of the bearings is beneficial. A proper guided cylinder is still required for significant side loads. For a drop-in replacement, match the 50 mm bore, 10 mm stroke, PT port thread, and basic mounting style to another AirTAC SCD50X10.
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 SCD50X10 FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. At the standard operating pressure of 0.5 MPa, the force is 825 N. At the maximum operating pressure of 0.9 MPa, the force increases to 1484 N. The theoretical force at 1.0 MPa is 168 kgf.
Choose the SCD when you need perfectly equal force and speed in both directions, or when you require a second rod end for mounting tooling, a mechanical stop, or a sensor target. The through-rod also provides superior guidance and anti-rotation compared to a single-rod cylinder, though it is not a replacement for a fully guided unit under high side loads.
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