The AirTAC Airtac SCD Standard Cylinder SCD200X75 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, 75mm stroke, PT3/4 ports and adjustable end cushioning.
The SCD200X75 is a large-bore double-rod pneumatic cylinder that outputs an identical 15080 N of force in both directions at 0.5 MPa, thanks to its through-rod construction. With a 40 mm diameter rod extending from both end caps and a 75 mm stroke, it is built for heavy, symmetrical tooling tasks where the rear rod can carry a limit switch dog or secondary fixture.
This genuine AirTAC actuator uses a tie-rod body with a 362 mm retracted length (A dimension) and PT3/4 ports. The adjustable air cushion at each end, with a 33 mm cushion length, decelerates the high-inertia piston smoothly, while the dual-rod support provides better bearing load distribution than a single-rod cylinder of the same bore.
| Model | Airtac SCD Standard Cylinder SCD200X75 |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 75 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.
| 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.
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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.
The rod extending from both ends allows identical pressing or forming tools to be mounted front and rear, doubling throughput in a single cycle.
Delivers 15080 N of push and pull force to move a pallet or heavy component between stations, with the rear rod available for a position-sensing flag.
Provides equal clamping force from both sides of a fixture, ensuring a workpiece is centred and held without unbalanced deflection.
This 200 mm bore SCD suits applications needing approximately 15 kN of balanced thrust. If your load requires less force, stepping down to the 160 mm bore (9425 N at 0.5 MPa) can reduce air consumption and physical size. For tasks where force is only needed in one direction, an SC single-rod cylinder is a more economical choice. If side loads are present, an external guide or a dedicated guided cylinder is necessary, as the through-rod improves guidance but is not a substitute for a true linear guide. For direct replacement, match the 200 mm bore, 75 mm stroke, PT3/4 port thread, and any SCD-specific mounting accessory like FA or TC.
Double-rod checklist
Because the piston rod passes through both ends, the effective pressure area is identical in both directions. At 0.5 MPa, the force is 15080 N both extending and retracting. At the maximum operating pressure of 0.9 MPa, the force reaches 27143 N.
Choose the SCD when you need identical force and speed in both directions, or when you need to mount tooling, a sensor flag, or a mechanical stop on the rear rod. The dual-rod design also provides better support for the piston and rod bearings than a single-rod cylinder.
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