Airtac SCD Standard Cylinder SCD40X530
The AirTAC Airtac SCD Standard Cylinder SCD40X530 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, 530mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Rod (both ends)Ø16 mm
- Stroke530 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac SCD Standard Cylinder SCD40X530
This SCD40X530 double-rod cylinder provides an identical 528 N of force in both extend and retract directions at 0.7 MPa, thanks to its 16 mm through-rod that subtracts the same area from each piston side. The 530 mm stroke sits well within the bore's 1200 mm standard limit, and the 191 mm body length (A dimension) keeps the assembly compact for a through-rod design.
A genuine AirTAC tie-rod cylinder, the SCD40X530 uses PT1/4 ports and an M12x1.25 rod thread on both ends. The adjustable air cushion at each cap decelerates the piston across the final 21 mm of travel, reducing end-of-stroke impact. Its dual rod ends are ideal for mounting tooling on one side and a sensor flag or manual stopper on the rear.
Airtac SCD Standard Cylinder SCD40X530 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD40X530 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø40 mm |
| Rod diameter | Ø16 mm (both ends) |
| Stroke | 530 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 SCD40X530
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 40 | Bore size in mm. |
| ×530 | 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 SCD40X530 Is Used
Two-Sided Transfer Shuttles
The rear rod carries a counterweight or secondary pusher, letting one cylinder drive a shuttle table equally in both directions without a return spring.
Synchronized Pressing
Identical 528 N push/pull force at 0.7 MPa makes the SCD40X530 perfect for clamping fixtures where pressure must be applied evenly from both sides of a workpiece.
Non-Rotating Alignment Tools
The dual-rod design inherently resists piston rotation, providing stable linear guidance for aligning pins or probes in assembly stations.
Is the Airtac SCD Standard Cylinder SCD40X530 the Right Cylinder?
Choose the SCD40 when you need symmetrical force and a rear rod extension. At 0.5 MPa, this bore delivers 528 N each way; if your load demands more thrust, stepping up to the SCD50 provides 825 N at the same pressure. If you only need force from one end, the single-rod SC40 is a simpler, lower-cost alternative. For strokes of 300 mm or more like this 530 mm unit, ensure the load is guided externally—the through rod improves guidance but a long unsupported stroke can still suffer rod deflection under side load.
As a direct replacement, match an existing AirTAC SCD40 cylinder on all five points: 40 mm bore, 530 mm stroke, PT1/4 ports, basic mounting (no bracket), and no magnet. The SCD mounting system accepts FA front flange, LB foot, or TC centre trunnion brackets, but does not use FB or clevis mounts.
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 SCD40X530 FAQ
Because it is a double-rod cylinder, the push and pull forces are equal. At 0.5 MPa it outputs 528 N, at 0.7 MPa it reaches 739 N, and at the maximum operating pressure of 0.9 MPa it generates 950 N in both directions.
Pick the SCD40 when you need a rear rod end for mounting sensors, a manual stop, or secondary tooling, or when you require perfectly symmetrical force and speed in both directions. The single-rod SC40 has a higher push force because the full bore area is used on the extend stroke, making it better for simple push-only tasks.
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