The AirTAC Airtac SCD Standard Cylinder SCD200X160S 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, 160mm stroke, PT3/4 ports and adjustable end cushioning.
This SCD200X160S double-rod pneumatic cylinder delivers an identical 15080 N of force in both extend and retract strokes at 0.5 MPa, thanks to its through-rod design where the 40 mm rod passes through both end caps. The equal-area piston means your tooling speed and thrust are perfectly symmetrical, eliminating the force imbalance you get with a single-rod cylinder. At the maximum operating pressure of 0.9 MPa, the output climbs to 27143 N each way.
The built-in magnet (-S suffix) allows you to mount CMSG, DMSG, or EMSG reed and solid-state sensors directly onto the tie-rod barrel for non-contact position sensing, ideal for confirming end-of-stroke on both the front and rear rod extensions. With a 160 mm stroke, this model stays well within the 1500 mm maximum standard stroke for the 200 mm bore. The adjustable air cushion at each end (33 mm length) decelerates the large piston mass smoothly, and the PT3/4 ports supply ample flow for high-speed operation within the 30-500 mm/s range.
| Model | Airtac SCD Standard Cylinder SCD200X160S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 160 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. |
| ×160 | 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 rear rod extends to push a pallet off a conveyor while the front rod simultaneously retracts to accept the next incoming load, keeping the cycle time balanced and the actuation force identical on both workstations.
With the built-in magnet, mount sensors on both the front and rear rod caps to independently verify the position of tooling attached to each end of the through-rod, critical for multi-stage assembly fixtures.
Use the equal push/pull force of 27143 N at 0.9 MPa to drive a central clamping beam that applies uniform pressure to two opposing rows of parts, eliminating the uneven force distribution of a single-rod actuator.
Choose the SCD200 bore when your application needs roughly 15000 N of balanced force in both directions at standard plant air pressure. If your load requires a step up in thrust, the SCD250 bore provides 23562 N at the same 0.5 MPa. For tasks that only need force in one direction, a single-rod SC200 cylinder would be a more economical choice, as it delivers a higher push force (15708 N) on the full-bore side. The double-rod design provides better rod guidance than a single-rod cylinder, but at a 160 mm stroke, side loads should still be managed with an external guide rail if the rear rod is carrying tooling.
For a direct replacement, match the 200 mm bore, 160 mm stroke, PT port thread, and the -S magnet option. This basic mounting configuration uses the tie-rod end nuts for direct machine-frame mounting. If you need a pivoting mount, the TC centre trunnion (F-SC200TC) is available for this series.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa, it outputs 15080 N in both directions. At 0.7 MPa, the force is 21111 N, and at the maximum operating pressure of 0.9 MPa, it reaches 27143 N. The theoretical force at 1.0 MPa is 3075 kgf.
Choose the SCD200 when you need perfectly equal speed and force in both directions, or when you need a rod extending from the rear cap to mount a sensor flag, a mechanical stop, or secondary tooling. The through-rod also provides better bearing support and inherent anti-rotation compared to a single-rod cylinder, which is useful when the rod itself must resist twisting.
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