Airtac SCD Standard Cylinder SCD200X800
The AirTAC Airtac SCD Standard Cylinder SCD200X800 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø40mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø200mm bore, 800mm stroke, PT3/4 ports and adjustable end cushioning.
- BoreØ200 mm
- Rod (both ends)Ø40 mm
- Stroke800 mm
- Port sizePT3/4
- Rod configDouble rod (through)
- CushionAdjustable, 33 mm
About the Airtac SCD Standard Cylinder SCD200X800
The SCD200X800 is a double-acting, double-rod pneumatic cylinder that outputs an identical 15080 N of force in both directions at 0.5 MPa, thanks to its through-rod design where the 40 mm rod occupies both pressure chambers equally. This symmetry eliminates the force imbalance typical of single-rod cylinders, making it ideal for applications requiring consistent speed and thrust in both extend and retract strokes.
With an 800 mm stroke and a body length A of 362 mm, this large-bore cylinder provides substantial reach for heavy transfer or lifting tasks. The adjustable air cushion at each end, with a 33 mm cushion length, decelerates the massive piston smoothly, protecting end caps from impact at speeds up to 500 mm/s.
Airtac SCD Standard Cylinder SCD200X800 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD200X800 |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 800 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 33 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 (Ø200mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | 21111 N |
| Max (@1.0 MPa) | 3075 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 SCD200X800
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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 SCD200X800 Is Used
Heavy Symmetrical Transfer
Moves large fixtures or pallets with equal 15080 N force in both directions, ensuring consistent cycle times and smooth handling of heavy loads on a shuttle table.
Dual-End Tooling Platform
The rear rod extension provides a mounting point for a counter-tool or a stroke confirmation sensor flag, enabling operations on both sides of the cylinder without complex linkages.
Balanced Pressing Station
Applies a controlled, identical pressing force from either direction, useful in laminating or clamping operations where the workpiece is accessed from both sides of the machine.
Is the Airtac SCD Standard Cylinder SCD200X800 the Right Cylinder?
Select the SCD200X800 when your application demands a balanced, high-force output of 15080 N at 0.5 MPa in both directions. If your force requirement is lower, consider stepping down to the SCD160 bore, which provides 9425 N each way at the same pressure. This double-rod cylinder is the right choice over a single-rod SC when you need a rear rod end for mounting a sensor flag, a stroke-limiting stopper, or secondary tooling. For a direct replacement, match the 200 mm bore, 800 mm stroke, PT port thread, basic mounting, and the absence of a magnet. At this long 800 mm stroke, be mindful of potential rod deflection under heavy side loads; if the load is not perfectly guided, an external guide rail or a switch to a guided cylinder is necessary to prevent bending the 40 mm rod.
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 SCD200X800 FAQ
Because it is a double-rod cylinder, the push and pull forces are equal. At 0.5 MPa it delivers 15080 N, at 0.7 MPa it's 21111 N, and at the maximum operating pressure of 0.9 MPa, the force is 27143 N in both directions.
Choose the SCD when you need perfectly equal force and speed in both directions, or when you require a rear rod extension to mount accessories like a limit switch cam or a secondary tool. The through-rod also provides better bearing support than a single-rod cylinder, improving resistance to side load, though it is not a full substitute for an externally guided unit.
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