The AirTAC Airtac SCD Standard Cylinder SCD200X75S 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 SCD200X75S is a large-bore double-rod pneumatic cylinder delivering perfectly symmetrical force in both directions—15080 N of push and pull at 0.5 MPa. Its 40 mm diameter rod passes through both end caps, giving you a rear rod extension to mount a second tool, a limit stop, or an external sensor flag without adding extra brackets.
With a 75 mm stroke and a body length A of 362 mm, this actuator is built for heavy, balanced linear work. The adjustable air cushion (29 mm length) decelerates the piston smoothly at both ends, and the integrated magnet lets you clamp CMSG or DMSG sensors directly onto the tie-rod barrel for reliable end-of-stroke sensing.
| Model | Airtac SCD Standard Cylinder SCD200X75S |
|---|---|
| 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 through-rod design lets you mount a clamping pad on each end, centering and holding a workpiece from both sides with exactly the same force—no uneven deflection.
Pushes and pulls a 1.5-tonne transfer shuttle with equal speed and thrust in both directions, keeping cycle times predictable on a linear gantry.
The rear rod extension carries a cam or flag past a fixed sensor, confirming full retraction without needing a bracket on the front tooling.
This 200 mm bore SCD suits applications needing over 15000 N of equal force each way. If your load is lighter, stepping down to the 160 mm bore cuts the force to 9425 N at 0.5 MPa, reducing air consumption and physical size. For a direct replacement, match the bore, 75 mm stroke, PT port thread, and the -S magnet option; the SCD is a tie-rod cylinder, not an ISO 15552 profile, so dimensional interchangeability is limited to other AirTAC SCD200 units.
Double-rod checklist
Because the rod extends from both ends, the effective piston area is identical on both sides. At 0.5 MPa you get 15080 N, at 0.7 MPa it is 21111 N, and at the maximum operating pressure of 0.9 MPa the force reaches 27143 N in both directions.
Choose the SCD when you need identical force and speed in both directions, or when you need a rear rod extension to mount tooling, a mechanical stop, or a sensor target. The dual-rod bearing support also provides better guidance than a single-rod cylinder, though it is not a replacement for a fully guided unit under high side loads.
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