The AirTAC Airtac SCD Standard Cylinder SCD40X150 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, 150mm stroke, PT1/4 ports and adjustable end cushioning.
The AirTAC SCD40X150 is a double-acting, double-rod pneumatic cylinder providing a symmetrical 528 N of force in both directions at 0.5 MPa. Its 16 mm diameter rod extends from both end caps, giving you identical push and pull thrust for perfectly balanced motion control.
With a 150 mm stroke and a compact 191 mm body length, this tie-rod cylinder suits applications where space is tight but equal force is critical. The adjustable air cushion at each end decelerates the piston smoothly, and the through-rod design improves rod guidance compared to a single-rod cylinder.
| Model | Airtac SCD Standard Cylinder SCD40X150 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø40 mm |
| Rod diameter | Ø16 mm (both ends) |
| Stroke | 150 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. |
| ×150 | 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 push/pull force of the SCD40X150 makes it ideal for linear transfer units where a pallet or fixture is moved with the same power in both directions.
With a rod extending from the rear cap, you can mount a sensor flag or cam on the back side to trigger limit switches without interfering with the main tooling on the front rod.
Use the through-rod to drive two opposing clamp arms or press tools simultaneously from a single cylinder, ensuring perfectly synchronized actuation.
This 40 mm bore model outputs 528 N at 0.5 MPa. If you need more force, the SCD50 delivers 825 N under the same pressure; for a lighter, more compact option, the SCD32 provides 345 N. If your application only requires force from one end, a standard SC single-rod cylinder may be a simpler choice. For direct replacement, match the 40 mm bore, 150 mm stroke, PT port thread, and basic mounting style exactly.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it outputs 528 N, at 0.7 MPa it provides 739 N, and at the maximum operating pressure of 0.9 MPa it reaches 950 N.
Choose the SCD when you need perfectly equal force and speed in both directions, or when you need a rear rod extension for mounting sensors, a mechanical stop, or secondary tooling. The through-rod also provides better bearing support and inherent anti-rotation compared to a single-rod cylinder.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.