The AirTAC Airtac SCD Standard Cylinder SCD80X160 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø25mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø80mm bore, 160mm stroke, PT3/8 ports and adjustable end cushioning.
The SCD80X160 is an 80 mm bore, 160 mm stroke double-rod pneumatic cylinder that outputs identical force in both directions—2268 N at 0.5 MPa, rising to 4082 N at the maximum operating pressure of 0.9 MPa. Its 25 mm diameter rod extends from both end caps, providing a rear attachment point for stroke sensing flags or secondary tooling while naturally resisting rotation better than a single-rod layout.
With a PT3/8 port and an adjustable air cushion of 28 mm at each end, this cylinder decelerates the piston smoothly even under frequent cycling. The body length A(SCD) is 257 mm, making the overall retracted length longer than a comparable single-rod SC model—plan your envelope accordingly when retrofitting.
| Model | Airtac SCD Standard Cylinder SCD80X160 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 160 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 28 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | 3175 N |
| Max (@1.0 MPa) | 463 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). |
|---|---|
| 80 | 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 through-rod design lets you mount a tooling plate on each end, shuttling parts between two stations with perfectly balanced force and speed in both directions.
Attach a sensor flag or cam to the rear rod extension to trigger external limit switches or proximity sensors without interfering with the front tooling workspace.
Use the front rod to push a component into a fixture while the rear rod simultaneously retracts a stripper plate, all from a single cylinder with matched timing.
Choose the SCD80 when you need the equal push/pull force of 2268 N at 0.5 MPa. If your load requires more thrust, the SCD100 steps up to 3681 N at the same pressure; for a lighter, more compact installation, the SCD63 provides 1402 N. If you only need force from one end, a single-rod SC80 cylinder reduces the rear overhang and simplifies guarding.
At a 160 mm stroke, rod bending under side load is rarely a concern, but any off-axis force should still be carried by an external guide rail rather than the rod bearings. For replacement, match bore (80), stroke (160), PT3/8 port thread, the SCD double-rod body, and your mounting accessory—this model is the basic configuration without magnet or brackets.
Double-rod checklist
Because the rod extends through both ends, the effective piston area is the same on both sides. The SCD80X160 delivers 2268 N in push and 2268 N in pull at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at the maximum operating pressure of 0.9 MPa.
Pick the SCD when you need equal force and speed in both directions, a rear rod for mounting sensors or secondary tooling, or improved resistance to rod rotation. If you only need force from one end and want a shorter overall length, the single-rod SC series is the better choice.
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