The AirTAC Airtac SCD Standard Cylinder SCD50X160S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø20mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø50mm bore, 160mm stroke, PT1/4 ports and adjustable end cushioning.
The AirTAC SCD50X160S is a double-acting, double-rod pneumatic cylinder that delivers identical push and pull force from both ends, rated at 825 N at 0.5 MPa. Its 20 mm diameter rod passes through both end caps, providing a rear connection point for tooling or a sensor flag while balancing the bearing load. With a 160 mm stroke and a body length A(SCD) of 207 mm, this model includes a built-in magnet, allowing CMSG/DMSG/EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing.
This cylinder operates on 40 µm filtered air between 0.15 and 1.0 MPa, with a proof pressure of 1.5 MPa. The adjustable air cushion at each end (21 mm long) decelerates the piston smoothly, and the PT1/4 ports keep plumbing simple. The S suffix in the ordering code confirms the factory-installed magnetic piston, making it ready for end-of-stroke detection without external brackets or flags.
| Model | Airtac SCD Standard Cylinder SCD50X160S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø50 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 160 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 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 | 825 N | 825 N |
| 0.7 MPa | 1155 N | 1155 N |
| Max (@1.0 MPa) | 168 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). |
|---|---|
| 50 | Bore size in mm. |
| ×160 | 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 rod extending from both ends allows a single cylinder to push a pallet into a station while simultaneously pulling the next pallet out, synchronizing the motion with equal force in each direction.
With the built-in magnet, a CMSG sensor on the rear rod provides piston position feedback in tight spaces where the front cap is inaccessible, simplifying automation on compact assembly fixtures.
The dual-rod support naturally resists rotation better than a single-rod cylinder, making this model suitable for pushing flat components onto a conveyor without adding an external anti-rotate guide.
Choose the SCD50 bore when your application needs around 825 N of balanced force in both directions at standard plant pressure. If you need more thrust, stepping up to the SCD63 bore provides 1402 N at the same 0.5 MPa, while a move down to the SCD40 gives 528 N. This double-rod design is the right pick when you require a rear rod extension for a stopper bolt, manual override, or dual-sided tooling—if you only need force from one end, the single-rod SC50 series is a simpler and more compact alternative. For a direct replacement, match the 50 mm bore, 160 mm stroke, PT port thread, basic mounting, and the -S magnet option.
At a 160 mm stroke, rod deflection under side load is generally not a concern, but any off-axis force should still be managed with an external guide rail. If your process applies a consistent side load, a guided cylinder is a safer choice than relying solely on the through-rod's improved bearing support.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are equal. At 0.5 MPa it delivers 825 N, at 0.7 MPa it delivers 1154 N, and at the maximum operating pressure of 0.9 MPa it delivers 1484 N in both directions.
Pick the SCD when you need a rear rod for mounting a cam, stopper, or sensor flag, or when you want equal speed and force in both directions. The through-rod also provides better guidance and anti-rotation than a single-rod cylinder, though it is not a substitute for an external guide under heavy side loads.
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.