The AirTAC Airtac SCD Standard Cylinder SCD80X115STC 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, 115mm stroke, PT3/8 ports and adjustable end cushioning.
The AirTAC SCD80X115STC is a double-acting, double-rod pneumatic cylinder that provides absolutely equal force and speed in both directions, delivering 2268 N of thrust at 0.5 MPa. Its 25 mm diameter rod passes through both end caps, giving you a usable rear rod end for mounting a sensor flag, a mechanical stop, or secondary tooling without needing a separate bracket.
This model includes a built-in magnet (suffix -S) for direct mounting of CMSG/DMSG/EMSG sensors and a centre trunnion mount (suffix -TC) that ships with the TCM1 bracket, allowing the cylinder body to pivot. With a 28 mm adjustable air cushion on each end and a retracted body length of 257 mm, it handles deceleration smoothly in both stroke directions.
| Model | Airtac SCD Standard Cylinder SCD80X115STC |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 115 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. |
| ×115 | 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 attach tooling to both ends of the piston rod, perfectly synchronizing a two-sided pressing, clamping, or forming operation with a single cylinder.
With the built-in magnet and the rod extending from the rear cap, you can mount a CMSG/DMSG sensor on the back side to detect end-of-stroke position when the front is obstructed.
The centre trunnion mount allows the entire cylinder to swing, making it perfect for a transfer shuttle that must pivot to align with different stations on an assembly line.
Choose the SCD80X115STC when your application needs a balanced 2268 N output in both push and pull at 0.5 MPa. If you require more force, stepping up to the 100 mm bore provides 3681 N; for a lighter, more compact solution, the 63 mm bore offers 1402 N. This double-rod design is ideal for tasks needing a rear connection point, but if you only need force from one end, a single-rod SC80 cylinder is a simpler, more cost-effective choice. For a drop-in replacement, match the 80 mm bore, 115 mm stroke, PT port thread, centre trunnion mounting, and the integrated magnet.
Double-rod checklist
Because the piston rod extends from both ends, the effective pressure area is identical in both directions. The force is 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at the maximum operating pressure of 0.9 MPa.
A double-rod cylinder provides equal force and speed in both directions and gives you a rear rod extension. This is essential for mounting external guides, stroke sensors, or tooling on the back side, and it offers better rod bearing support than a single-rod design.
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