The AirTAC Airtac SCD Standard Cylinder SCD40X110S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø16mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø40mm bore, 110mm stroke, PT1/4 ports and adjustable end cushioning.
The SCD40X110S is a double-acting, double-rod pneumatic cylinder where the piston rod extends from both ends, guaranteeing identical push and pull forces of 528 N at 0.7 MPa. With a 40 mm bore and a 110 mm stroke, it uses a 16 mm diameter rod on each side, making it ideal for tasks that need a rear rod connection for a sensor flag, stopper, or secondary tooling without adding external brackets.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing. The adjustable air cushion at both ends (21 mm length) decelerates the piston smoothly, and the body length A(SCD) is 191 mm, providing a compact envelope for a through-rod design.
| Model | Airtac SCD Standard Cylinder SCD40X110S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø40 mm |
| Rod diameter | Ø16 mm (both ends) |
| Stroke | 110 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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, 21 mm |
| Max stroke | Up to 1200 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 | 528 N | 528 N |
| 0.7 MPa | 739 N | 739 N |
| Max (@1.0 MPa) | 108 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). |
|---|---|
| 40 | Bore size in mm. |
| ×110 | 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 equal 528 N force in both directions moves a shuttle table or transfer cart with consistent speed and power, simplifying flow control and timing.
The -S magnet and exposed rear rod allow a DMSG sensor to monitor full stroke confirmation from the back end, keeping the front tooling area clear.
Dual 16 mm rods provide inherent anti-rotation, guiding a pusher plate or alignment tool without needing an external guide rail for light-duty tasks.
Choose the SCD40 when you need balanced bidirectional force; the 40 mm bore provides 528 N of thrust each way at 0.7 MPa. If your application requires more force, stepping up to the 50 mm bore (SCD50) raises output to 1154 N at the same pressure. For applications that only need a rod on one end, the single-rod SC series is a lighter and more cost-effective alternative, while a guided cylinder should be specified if the rod will experience significant side loads.
This SCD40X110S is a direct replacement for any AirTAC SCD double-rod cylinder of identical 40 mm bore, 110 mm stroke, PT port thread, basic mounting, and built-in magnet. Ensure the replacement matches all five points—bore, stroke, port thread, mounting accessory, and magnet option—to guarantee identical fit and performance.
Double-rod checklist
Because it is a double-rod cylinder, the effective piston area is identical on both sides. The force is 528 N for both push and pull at 0.7 MPa, and 950 N at the maximum operating pressure of 0.9 MPa.
Select the SCD when you need a rear rod extension for mounting sensors, cams, or stoppers, or when you require perfectly equal force and speed in both directions. The dual-rod design also provides better guidance and inherent anti-rotation compared to a single-rod SC cylinder.
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