The AirTAC Airtac SCD Standard Cylinder SCD160X25S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø40mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø160mm bore, 25mm stroke, PT3/4 ports and adjustable end cushioning.
The SCD160X25S is a large-bore double-rod pneumatic cylinder delivering identical 9425 N of force in both the extend and retract strokes at 0.5 MPa, thanks to its 40 mm through-rod that subtracts the same area from each piston face. With a short 25 mm stroke, it is purpose-built for compact, high-force clamping, pressing, or ejecting tasks where the rear rod extension can carry a confirmation flag or secondary tool.
This model includes a factory-installed magnet, allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be mounted directly on the tie-rod barrel for non-contact end-of-stroke sensing. Operating on filtered air from 0.15 to 1.0 MPa, the SCD160X25S features an adjustable air cushion (29 mm length) to decelerate the substantial moving mass and PT3/4 ports for high flow.
| Model | Airtac SCD Standard Cylinder SCD160X25S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø160 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 25 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 29 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 | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | 13195 N |
| Max (@1.0 MPa) | 1922 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). |
|---|---|
| 160 | Bore size in mm. |
| ×25 | 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 9425 N force in both directions makes this cylinder ideal for press-fit assembly stations where the retract stroke must also apply controlled force to strip or eject a part.
With a rod extending from both ends, the SCD160X25S can simultaneously actuate two opposing clamp arms from a single cylinder body, ensuring perfectly synchronized clamping on a welding or machining fixture.
The built-in magnet and 25 mm stroke are a precise combination for high-speed sorting gates, where a DMSG sensor on the rear rod confirms the gate has fully retracted before the next product passes.
Select the SCD160X25S when you need a symmetric 9425 N output at 0.5 MPa in a very short stroke. If your force requirement is lower, stepping down to the SCD125 bore reduces the force to 5734 N at the same pressure, saving space and air consumption. For applications where the load must be held in position with air pressure removed, remember that this cylinder does not lock; an external rod brake or pilot-operated check valve is required.
This is a direct replacement for an existing AirTAC SCD160X25S with a PT port, basic mounting, and a magnet. When replacing, match the 160 mm bore, 25 mm stroke, PT3/4 port thread, SCD mounting accessory style, and the -S magnet option to guarantee identical fit and function. For a single-rod version of this force class, consider the SC160 series, but you will lose the equal push/pull force and rear rod access.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. The effective piston area is calculated by subtracting the 40 mm rod area from the 160 mm bore area. This results in a force of 9425 N at 0.5 MPa, 13194 N at 0.7 MPa, and 16964 N at the maximum operating pressure of 0.9 MPa.
Choose the SCD when you need perfectly equal force and speed in both directions, which a single-rod cylinder cannot provide due to the rod volume difference. The SCD's through-rod also gives you a second working end for mounting a sensor flag, a mechanical stop, or a secondary tool, and it provides better support for the piston against side loads than a single-rod design.
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