The AirTAC SCD Standard Cylinder SCD80X30S 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, 30mm stroke, PT3/8 ports and adjustable end cushioning.
The SCD80X30S is a short-stroke double-rod pneumatic cylinder delivering identical force in both directions—2268 N at 0.5 MPa and up to 4082 N at 0.9 MPa. Its 25 mm rod extends from both ends, making it ideal for compact stations where a rear rod connection point is needed for a sensor flag or secondary tooling.
With a 30 mm stroke and a body length A(SCD) of 257 mm, this actuator fits tight spaces while providing the inherent anti-rotation benefits of a through-rod design. The built-in magnet (denoted by the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for reliable, non-contact end-of-stroke detection.
| Model | Airtac SCD Standard Cylinder SCD80X30S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 30 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. |
| ×30 | 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 allows a single cylinder to actuate tooling on both ends, perfect for compact shuttle or transfer mechanisms where space is limited.
The integrated magnet enables direct mounting of CMSG/DMSG sensors on the barrel, providing precise position feedback for both the front and rear rod ends in automated sequences.
The dual rod provides superior guidance compared to a single-rod cylinder, making it suitable for short-stroke pushing applications where preventing rod rotation is critical.
Choose the SCD80X30S when you need equal push-pull output and a rear rod extension in a very short stroke. If 2268 N at 0.5 MPa is more force than required, stepping down to a 63 mm bore provides 1402 N. For applications needing only a single rod, the standard SC series is a lighter and more cost-effective alternative. This cylinder is a direct dimensional replacement only for another AirTAC SCD80 cylinder with matching stroke, PT ports, basic mount, and magnet. For strokes this short, rod bending is not a concern, but ensure the dual rod ends are not subjected to significant side loads without external guidance.
Double-rod checklist
Push and pull forces are equal in a double-rod cylinder. For the 80 mm bore, 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.
Choose an SCD when you need a rear rod extension for mounting a sensor flag, stopper, or secondary tooling, or when you require equal force and speed in both directions. The through-rod also provides better guidance and inherent anti-rotation compared to a single-rod design.
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