The AirTAC Airtac SCD Standard Cylinder SCD80X200STC 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, 200mm stroke, PT3/8 ports and adjustable end cushioning.
The SCD80X200STC is a double-acting, double-rod pneumatic cylinder that provides identical push and pull force in both directions—2268 N at 0.5 MPa—thanks to its through-rod design. The 25 mm rod protrudes from both end caps, giving you a rear rod end for mounting a sensor flag, stopper, or secondary tooling while maintaining balanced bearing loads.
This configuration includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors and a TC centre trunnion pivot mount (F-SC80TC with TCM1 bracket), ideal for applications where the cylinder body needs to swing. With a 28 mm adjustable air cushion and a body length A(SCD) of 257 mm, it handles strokes up to 1500 mm as standard, though this 200 mm stroke keeps the assembly compact for reciprocating transfer tasks.
| Model | Airtac SCD Standard Cylinder SCD80X200STC |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 200 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. |
| ×200 | 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 end can push a return shuttle or carry a counterbalance, making this cylinder ideal for two-position transfer tables where tooling is needed on both sides of the piston.
With the built-in magnet and the exposed rear rod, you can mount a sensor flag on the back end to confirm full retraction without interfering with the front tooling, keeping the main work area clear.
The TC centre trunnion mount lets the entire cylinder body pivot, perfect for actuating a swinging gate or clamp where the rod ends connect to fixed points and the cylinder must follow an arc.
Choose the SCD80 bore when your application needs around 2268 N of balanced force at standard plant pressure; if you can accept a lower force of 1402 N, stepping down to the SCD63 saves space and air consumption. For higher thrust, the SCD100 delivers 3681 N at the same 0.5 MPa. This double-rod design is the right pick over a single-rod SC when you need a rear rod extension for stroke sensing or dual-sided actuation—but if the load applies significant side force, pair it with an external guide or switch to a guided cylinder.
At a 200 mm stroke, rod bending is not a primary concern under axial loads, but always align the load to avoid off-axis stress on the dual rod bearings. For a direct replacement, match the 80 mm bore, 200 mm stroke, PT port thread, TC centre trunnion mounting, and the -S magnet option.
Double-rod checklist
Because it is a double-rod cylinder, the effective piston area is the same on both sides. The force is 2268 N for both push and pull at 0.5 MPa, 3175 N at 0.7 MPa, and reaches 4082 N at the maximum operating pressure of 0.9 MPa.
Pick the SCD when you need a rod on both ends of the cylinder. The rear rod is perfect for attaching a sensor cam, a mechanical stop, or secondary tooling. It also provides better guidance and symmetric bearing loading than a single-rod cylinder, and gives you perfectly equal speed and force in both directions.
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